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2026 NPPES data Internal Medicine Physician NPI 1629230842 M.D.
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Olivera Chandler, M.D.

Internal Medicine Physician in West Reading, Pennsylvania.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 174,792 in Internal Medicine Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
2K
Medicare Part D claims · 359 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
78%
generic claims · 22% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
81.2/100
▼ 2 pts below national avg 83.5 · Above neutral
Industry payments
$641.99
24 payments · CMS Open Payments (Sunshine Act)
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

Olivera Chandler, M.D. reported a CMS MIPS final score of 81.2/100 - below the 83.5 national average - and filed 2,215 Medicare Part D claims in 2024.

81.2/100
MIPS score · -2 vs avg
2K
Part D claims, 2024
78%
generic prescribing
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.

Federal trust snapshot

What official records show about Olivera Chandler, M.D.

Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.

  • Verified

    NPI registry status

    Active listing in the CMS National Provider Identifier Registry (NPI 1629230842), first enumerated 06/29/2008.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 2,215 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.

    Source: CMS Part D Prescriber PUF

  • Reported

    CMS quality reporting (MIPS)

    Reported a CMS MIPS final score of 81.2/100 in the Quality Payment Program — a federal quality measure, not a patient review.

    Source: CMS Quality Payment Program

  • Reported

    Board certification signal

    Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.

    Source: NUCC taxonomy + CMS participation heuristic

  • Reported

    Hospital affiliations

    3 CMS Care Compare hospital affiliations on record — practice footprint from the Doctors and Clinicians file.

    Source: CMS Care Compare

  • Reported

    Industry payment transparency

    $641.99 in reported industry payments (24 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.

    Source: CMS Open Payments

  • State context

    State board disciplinary context

    Pennsylvania statewide board action statistics are published annually — these figures describe aggregate state activity, not Olivera Chandler, M.D.'s individual license status. Verify directly with the state medical board.

    Source: PA-BOM annual report 2023

  • Not in federal data

    Individual sanction lookup

    PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.

    Source: State medical board / FSMB

This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.

CMS NPPES provider registry desk

NPI 1629230842 · Internal Medicine Physician

NPI-10 · ENUM-MID · TAX-MEGA · MIPS-INLINE · RX-MID · BOOK-MID · PHOTO-FINISH

  • NPI-10 1629230842
  • ENUM-MID 2008
  • TAX-MEGA 175K Internal Medicine
  • MIPS-INLINE 81.2/100
  • RX-MID 2,215
  • BOOK-MID 8,636 in Pennsylvania
  • PHOTO-FINISH Trishna Acherjee · ±0.0

MIPS final-score neighbourhood

Same-specialty nationwide peers by CMS final score, not geographic proximity

MIPS pts

What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).

Source CMS Quality Payment Program (MIPS) As of 2023

Olivera Chandler, M.D.'s MIPS score vs every measured U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.

81 ≥ 32nd percentile 32% of 454,083 measured providers are in lower value bands

0–10: 8,684 measured providers (2%). Below this entry. 10–20: 3,008 measured providers (1%). Below this entry. 20–30: 3,069 measured providers (1%). Below this entry. 30–40: 2,746 measured providers (1%). Below this entry. 40–50: 2,928 measured providers (1%). Below this entry. 50–60: 5,882 measured providers (1%). Below this entry. 60–70: 13,906 measured providers (3%). Below this entry. 70–80: 94,570 measured providers (21%). Below this entry. 80–90: 129,887 measured providers (29%). This entry sits in this band. 90+: 189,403 measured providers (42%). Above this entry. This provider 0 100 every measured MIPS clinician, bucketed by value

Each bar is a band; taller bars hold more measured providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Where Olivera Chandler, M.D. sits

This provider among internal medicine physician peers

Across the 34,612 internal medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Olivera Chandler, M.D. writes more Part D claims than 68% of them and scores higher on MIPS quality than 32% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality02550751000255075100Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 3Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 2Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 5Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 33Olivera Chandler, M.D., Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 32
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one internal medicine physician peer from a representative sample of 60; the gold marker is Olivera Chandler, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

✓
Board certification likely (heuristic, not verified)

Olivera Chandler, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 3 hospital affiliations - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about Olivera Chandler, M.D.?

Near national average

NPI registry status

Active

Issued 06/29/2008

NPI 1629230842

Primary specialty

Internal Medicine Physician

High-volume

174,792 US NPIs in this specialty

Medicare Part D claims

2,215 20% vs specialty avg

2024 prescription claims

Specialty avg: 2,785

MIPS final score

81.2/100 2.3 pts vs avg

Above neutral band

vs 83.5 national avg

Specialty distribution in Pennsylvania

How Internal Medicine Physician compares to other specialties among Pennsylvania providers

Pennsylvania providers
Student in an Organized Heal…6%Pharmacist5%Physical Therapist4.8%Mental Health Counselor4%Internal Medicine Physician3.3%Professional Counselor3.2%
Largest specialties in Pennsylvania (% of in-state providers)

Medicare quality performance, MIPS

Olivera Chandler, M.D.'s 2023 MIPS final score plotted against the Internal Medicine Physician national average

Near national average
MIPS Final Score
81.2/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%81.2%
MIPS final score (Internal Medicine Physician) - 81.2/100 vs national avg 83.5
How MIPS and board certification work

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

Practice Address

301 S 7TH AVE
West Reading, PA 19611
(610) 375-6565

Provider Details

NPI 1629230842
Specialty Internal Medicine Physician
Credentials M.D.
Gender Female
NPI Issued 06/29/2008

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

81.1913
Final Score
Measured-score avg: 83.5
74.5659
Quality
65.2384
Cost
97
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where Olivera Chandler, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

According to CMS billing records, Olivera Chandler, M.D. is affiliated with 3 Medicare-billing facilities, 1 of which carry a CMS Hospital overall star rating.

Reading Hospital
★★★★☆ 4/5
West Reading, PA
Acute Care Hospitals
CMS CCN: 390044
Phoenixville Clinic Company LLC
Phoenixville, PA
Tower Health Medical Group
Wyomissing, PA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) - CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Olivera Chandler, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$642

Largest payer

Impulse Dynamics (USA) Inc.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

License & disciplinary context - Pennsylvania PA-BOM 2023 annual report

Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~45K Pennsylvania medical licensees in 2023 - they are NOT specific to Olivera Chandler, M.D.. To verify Olivera Chandler, M.D.'s current license status, search the PA-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

133
Total board actions, Pennsylvania 2023
Across 129 cases
2.96
Actions per 1,000 licensees
Pennsylvania statewide rate
probation
Most common action type
48 cases

PA-BOM publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Pennsylvania disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

Olivera Chandler, M.D. - brand share 22.0%
Internal Medicine Physician average

22% brand-name claims vs 78% generic, on 2,215 2024 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2024.

2,215
Total Claims
$509K
Total Drug Cost
359
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
4,906.9
Total Day Supply
146,613
Brand vs Generic
22% brand / 78% generic
Brand Drug Cost
$481K
Generic Drug Cost
$28K

Patient Demographics

Average Patient Age
76.5 years
Avg HCC Risk Score
1.80
Gender Split
50% female / 50% male
Age Distribution
<65: 27, 65-74: 120, 75-84: 141, 85+: 71

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.

What Olivera Chandler, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2024

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2024
Drug Claims
Metoprolol Succinate
 207
Eliquis
Apixaban
206
Carvedilol
 163
Furosemide
 144
Amlodipine Besylate
 129
Atorvastatin Calcium
 113
Entresto
Sacubitril/Valsartan
102
Spironolactone
 100
Lisinopril
 99
Losartan Potassium
 83

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

More Internal Medicine Physician in PA → All providers in Pennsylvania → Compare specialties →

Internal Medicine Physician Overview

How Olivera Chandler, M.D. fits within the Internal Medicine Physician landscape nationally.

174,792
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,785
Avg Claims per Provider

Olivera Chandler, M.D.'s 2,215 claims are below the specialty average of 2,785.

Nationwide Internal Medicine Physician peers with similar MIPS or enrollment year

Two federal-record peer sets for Chandler, both outside Pennsylvania so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (81.2 here).

Trishna Acherjee 81.2 NJ Prakash Adhikari 81.2 GA Sijan Basnet 81.2 DE Deepika Beereddy 81.2 MT

Same NPPES enumeration year (2008)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Michelle Herrero Jacksonville, FL Florence Myint-Dun Oakland, CA Syed Ur Rehman Syracuse, NY Tala Shamsa-Gray Houston, TX

Nearby Internal Medicine Physician Providers in Pennsylvania

Other clinicians with the same primary specialty enrolled in Pennsylvania, drawn from the same CMS NPPES roster as Chandler.

One of 8,636 Internal Medicine Physician providers enrolled in Pennsylvania, 5 are shown here.

Dr. Erin Aakhus
M.D.
Philadelphia, PA
Dr. Muhammad Aamir
MD
Allentown, PA
Dr. Saira Aamir
MD
York, PA
Dr. John Aaron
MD
West Grove, PA
Dr. Todd Aaron
MD
Philadelphia, PA

Compare Internal Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is Olivera Chandler, M.D.'s specialty? ▼
Olivera Chandler, M.D. specializes in Internal Medicine Physician and practices in West Reading, Pennsylvania. Credentials: M.D..
How much does Olivera Chandler, M.D. prescribe under Medicare Part D? ▼
In 2024, Olivera Chandler, M.D. wrote 2,215 Medicare Part D claims totaling $509K in drug costs for 359 beneficiaries.
What is Olivera Chandler, M.D.'s Medicare quality score? ▼
Olivera Chandler, M.D. has a CMS MIPS Final Score of 81.2/100 (Quality: 74.6, Cost: 65.2). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Olivera Chandler, M.D. located? ▼
Olivera Chandler, M.D. is located at 301 S 7TH AVE, West Reading, PA, 19611. Phone: (610) 375-6565.
What is Olivera Chandler, M.D.'s NPI number? ▼
Olivera Chandler, M.D.'s National Provider Identifier (NPI) is 1629230842, issued on 06/29/2008.
Does Olivera Chandler, M.D. prescribe more brand-name or generic drugs? ▼
Olivera Chandler, M.D.'s prescribing is 22% brand-name and 78% generic drugs by claim count, with $481K in brand drug costs.
How many Internal Medicine Physician providers are there in the US? ▼
There are 174,792 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,785 Medicare Part D claims per year.
What drugs does Olivera Chandler, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Olivera Chandler, M.D.'s most frequently prescribed drugs include Metoprolol Succinate, Eliquis, Carvedilol. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Olivera Chandler, M.D. accept Medicare? ▼
Olivera Chandler, M.D. appears in CMS Medicare data with 2,215 Part D claims and 359 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Olivera Chandler, M.D.'s credentials? ▼
Olivera Chandler, M.D.'s NPI is 1629230842 with credentials M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

View source datasets and methodology notes
Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of August 2026 (NPPES) / 2024 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology

Compiled from official public sources by the editorial process.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.