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2026 NPPES data Geriatric Medicine (Internal Medicine) Physician NPI 1821036682 MD
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Catherine Clarke, MD

Geriatric Medicine (Internal Medicine) Physician in Wynnewood, 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 4,215 in Geriatric Medicine (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
7K
Medicare Part D claims · 494 beneficiaries · Geriatric Medicine (Internal Medicine) Physician avg: 4K
Generic prescribing
87%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
86.7/100
▲ 3 pts above national avg 83.5 · Above neutral
Industry payments
$210.47
11 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

Catherine Clarke, MD reported a CMS MIPS final score of 86.7/100 - above the 83.5 national average - and filed 7,385 Medicare Part D claims in 2024.

86.7/100
MIPS score · +3 vs avg
7K
Part D claims, 2024
87%
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 Catherine Clarke, MD

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 1821036682), first enumerated 06/03/2006.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 7,385 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 86.7/100 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

    Industry payment transparency

    $210.47 in reported industry payments (11 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 Catherine Clarke, MD'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 1821036682 · Geriatric Medicine (Internal Medicine) Physician

NPI-10 · ENUM-LEGACY · TAX-NARROW · MIPS-ABOVE · RX-MID · BOOK-THIN · PHOTO-FINISH

  • NPI-10 1821036682
  • ENUM-LEGACY 2006
  • TAX-NARROW 4,215
  • MIPS-ABOVE 86.7/100
  • RX-MID 7,385
  • BOOK-THIN 225 in Pennsylvania
  • PHOTO-FINISH Mikko Helenius, M.D. · ±0.1

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

Catherine Clarke, MD'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.

87 ≥ 49th percentile 49% 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 Catherine Clarke, MD sits

This provider among geriatric medicine (internal medicine) physician peers

Across the 686 geriatric medicine (internal medicine) physician providers who report both Medicare Part D prescribing and a MIPS quality score, Catherine Clarke, MD writes more Part D claims than 79% of them and scores higher on MIPS quality than 53% - placing this provider in the high-volume, high-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: 37 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 98Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 2Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 3Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 5Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 88Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 98Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 77Catherine Clarke, MD, Part D claim volume, percentile in specialty: 79 · MIPS quality, percentile: 53
Part D claim volume vs MIPS quality, by specialty percentile

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

✓
Board certification likely (heuristic, not verified)

Catherine Clarke, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - 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 Catherine Clarke, MD?

High performer (top quartile)

NPI registry status

Active

Issued 06/03/2006

NPI 1821036682

Primary specialty

Geriatric Medicine (Internal Medicine) Physician

Niche

4,215 US NPIs in this specialty

Medicare Part D claims

7,385 67% vs specialty avg

2024 prescription claims

Specialty avg: 4,420

MIPS final score

86.7/100 3.2 pts vs avg

Above neutral band

vs 83.5 national avg

Specialty distribution in Pennsylvania

How Geriatric Medicine (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%Geriatric Medicine (Internal…0.1%
Largest specialties in Pennsylvania (% of in-state providers)

Medicare quality performance, MIPS

Catherine Clarke, MD's 2023 MIPS final score plotted against the Geriatric Medicine (Internal Medicine) Physician national average

High performer (top quartile)
MIPS Final Score
86.7/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%86.7%
MIPS final score (Geriatric Medicine (Internal Medicine) Physician) - 86.7/100 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

300 E. LANCASTER AVENUE
Wynnewood, PA 19096
(610) 649-3456

Provider Details

NPI 1821036682
Specialty Geriatric Medicine (Internal Medicine) Physician
Credentials MD
Gender Female
NPI Issued 06/03/2006

CMS Quality Score (MIPS)

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

86.6508
Final Score
Measured-score avg: 83.5
100
Quality
57.1693
Cost
98
Promoting Interoperability

Reporting: Individual

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 Catherine Clarke, MD. Source: openpaymentsdata.cms.gov.

Total received

$210

Largest payer

GlaxoSmithKline, LLC.

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 Catherine Clarke, MD. To verify Catherine Clarke, MD'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

Catherine Clarke, MD - brand share 12.0%
Geriatric Medicine (Internal Medicine) Physician average

12% brand-name claims vs 87% generic, on 7,385 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.

7,385
Total Claims
$857K
Total Drug Cost
494
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
15,073.733
Total Day Supply
437,652
Brand vs Generic
12% brand / 87% generic
Brand Drug Cost
$709K
Generic Drug Cost
$145K
Opioid Claims
96 (1.3% rate)
Antibiotic Claims
184

Patient Demographics

Average Patient Age
78.0 years
Avg HCC Risk Score
1.15
Gender Split
80% female / 20% male

Top Prescribed Drugs (Medicare Part D)

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

What Catherine Clarke, MD 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
Atorvastatin Calcium
 557
Amlodipine Besylate
 295
Levothyroxine Sodium
 288
Losartan Potassium
 226
Rosuvastatin Calcium
 219
Metoprolol Succinate
 215
Trazodone Hcl
 164
Sertraline Hcl
 149
Omeprazole
 138
Gabapentin
 124

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

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

Geriatric Medicine (Internal Medicine) Physician Overview

How Catherine Clarke, MD fits within the Geriatric Medicine (Internal Medicine) Physician landscape nationally.

4,215
Geriatric Medicine (Internal Medicine) Physician Providers in US
52
States with Geriatric Medicine (Internal Medicine) Physician
4,420
Avg Claims per Provider

Catherine Clarke, MD's 7,385 claims are above the specialty average of 4,420.

Nationwide Geriatric Medicine (Internal Medicine) Physician peers with similar MIPS or enrollment year

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

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (86.7 here).

Mikko Helenius 86.6 CA Anna Izquierdo-Porrera 86.6 MD Lisa Furmanski 86.8 NH Anirudh Sridharan 86.8 MD

Same NPPES enumeration year (2006)

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

Steven Delashmutt Baker City, OR Carol Most-Levin Boynton Beach, FL Claudine Frederiks Cape Coral, FL Shing-Shing Yeh Northport, NY

Nearby Geriatric Medicine (Internal Medicine) Physician Providers in Pennsylvania

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

One of 225 Geriatric Medicine (Internal Medicine) Physician providers enrolled in Pennsylvania, 5 are shown here.

Dr. Comfort Adewunmi
DO
Williamsport, PA
Dr. Nova Aguila
MD
Philadelphia, PA
Dr. Alison Alexander
MD
Narbeth, PA
Dr. Asif Ali
M.D
Altoona, PA
Dr. Anastassia Amaro
MD
Philadelphia, PA

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

Frequently Asked Questions

What is Catherine Clarke, MD's specialty? ▼
Catherine Clarke, MD specializes in Geriatric Medicine (Internal Medicine) Physician and practices in Wynnewood, Pennsylvania. Credentials: MD.
How much does Catherine Clarke, MD prescribe under Medicare Part D? ▼
In 2024, Catherine Clarke, MD wrote 7,385 Medicare Part D claims totaling $857K in drug costs for 494 beneficiaries.
What is Catherine Clarke, MD's Medicare quality score? ▼
Catherine Clarke, MD has a CMS MIPS Final Score of 86.7/100 (Quality: 100, Cost: 57.2). 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 Catherine Clarke, MD located? ▼
Catherine Clarke, MD is located at 300 E. LANCASTER AVENUE, Wynnewood, PA, 19096. Phone: (610) 649-3456.
What is Catherine Clarke, MD's NPI number? ▼
Catherine Clarke, MD's National Provider Identifier (NPI) is 1821036682, issued on 06/03/2006.
Does Catherine Clarke, MD prescribe more brand-name or generic drugs? ▼
Catherine Clarke, MD's prescribing is 12% brand-name and 87% generic drugs by claim count, with $709K in brand drug costs.
Does Catherine Clarke, MD prescribe opioids? ▼
Yes, Catherine Clarke, MD had 96 opioid claims in 2024 with an opioid prescribing rate of 1.3%.
How many Geriatric Medicine (Internal Medicine) Physician providers are there in the US? ▼
There are 4,215 Geriatric Medicine (Internal Medicine) Physician providers across 52 states in the US. The average Geriatric Medicine (Internal Medicine) Physician provider writes 4,420 Medicare Part D claims per year.
What drugs does Catherine Clarke, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Catherine Clarke, MD's most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Catherine Clarke, MD accept Medicare? ▼
Catherine Clarke, MD appears in CMS Medicare data with 7,385 Part D claims and 494 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Catherine Clarke, MD's credentials? ▼
Catherine Clarke, MD's NPI is 1821036682 with credentials MD. 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.