2026 NPPES data Student in an Organized Health Care Education/Training Program NPI 1093058091 MD
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ANDREW CHANG, MD

Student in an Organized Health Care Education/Training Program in CHARLOTTESVILLE, Virginia. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
4K
Medicare Part D claims · 397 beneficiaries · Student in an Organized Health Care Education/Training Program avg: 459
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
79.3949/100
▼ 4 pts below national avg 83.1 · [object Object]

What the federal data shows

ANDREW CHANG, MD reported a CMS MIPS final score of 79.3949/100 — below the 83.1 national average — and filed 4,433 Medicare Part D claims in 2023.

79.3949/100
MIPS score · -4 vs avg
4K
Part D claims, 2023
91%
generic prescribing

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.

ANDREW CHANG, MD's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

79 30th percentile higher than 30% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). This entry sits in this band. 80–90: 129,887 scored providers (27%). Above this entry. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored 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.

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

What does the federal data show about ANDREW CHANG, MD?

Near national average

NPI registry status

Active

Issued 03/28/2013

NPI 1093058091

Primary specialty

Student in an Organized Health Care Education/Training Program

High-volume

331,761 US NPIs in this specialty

Medicare Part D claims

4,433 866% vs specialty avg

2023 prescription claims

Specialty avg: 459

MIPS final score

79.3949/100 3.7050999999999874% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Virginia

How Student in an Organized Health Care Education/Training Program compares to other specialties among Virginia providers

Virginia providers

Student in an Organized Health Care Education/Training Program share within Virginia

1. Student in an Organized Health Care Education/Training Program42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Student in an Organized Health Care Education/Training Program share within Virginia

Medicare quality performance — MIPS

ANDREW CHANG, MD's 2023 MIPS final score plotted against the Student in an Organized Health Care Education/Training Program national average

Near national average
MIPS Final Score
79.3949/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Student in an Organized Health Care Education/Training Program) — 79.3949/100 vs national avg 83.1

0%100%National avg83%79.4%
MIPS final score (Student in an Organized Health Care Education/Training Program) — 79.3949/100 vs national avg 83.1

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).

ANDREW CHANG, MD appears in the CMS NPPES registry as a Student in an Organized Health Care Education/Training Program provider holding MD credentials at 2335 SEMINOLE LN STE 200, CHARLOTTESVILLE, VA, 22901, with a listed phone of (434) 975-7700. NPI 1093058091 was issued on 03/28/2013. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHANG most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 4,433 prescription claims written by this provider, covering 397 Medicare beneficiaries and totaling roughly $330K in drug spend, split 9% brand-name and 91% generic by claim count, with an opioid prescribing rate of 1.6%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 79.3949/100 for the 2023 performance year (Quality 73.6607, Cost 57.6556), compared with the national average of 83.1.

Student in an Organized Health Care Education/Training Program is a high-volume specialty nationwide, with 331,761 enrolled providers across 55 states and an average of 459 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

2335 SEMINOLE LN STE 200
CHARLOTTESVILLE, VA 22901

Provider Details

NPI 1093058091
Specialty Student in an Organized Health Care Education/Training Program
Credentials MD
Gender Male
NPI Issued 03/28/2013

CMS Quality Score (MIPS)

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

79.3949
Final Score
Avg: 83.1
73.6607
Quality
57.6556
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where ANDREW CHANG, MD 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.

UNIVERSITY OF VIRGINIA PHYSICIANS GROUP
LOUISA, VA

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

Brand vs generic prescribing mix · Generic-heavy

ANDREW CHANG, MD — brand share 9.0%
Specialty average (est.)

9% brand-name claims vs 91% generic, on 4,433 2023 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 2023.

4,433
Total Claims
$330K
Total Drug Cost
397
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
10,876
Total Day Supply
319,471
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$247K
Generic Drug Cost
$82K
Opioid Claims
71 (1.6% rate)
Antibiotic Claims
81

Patient Demographics

Average Patient Age
72.7 years
Avg HCC Risk Score
1.02
Gender Split
42% female / 58% male
Age Distribution
<65: 39, 65-74: 202, 75-84: 118, 85+: 38

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What ANDREW CHANG, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Atorvastatin Calcium
312
Amlodipine Besylate
231
Lisinopril
218
Levothyroxine Sodium
174
Hydrochlorothiazide
153
Metoprolol Succinate
144
Losartan Potassium
142
Metformin Hcl
109
Simvastatin
82
Omeprazole
80

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

Student in an Organized Health Care Education/Training Program Overview

How ANDREW CHANG, MD fits within the Student in an Organized Health Care Education/Training Program landscape nationally.

331,761
Student in an Organized Health Care Education/Training Program Providers in US
55
States with Student in an Organized Health Care Education/Training Program
459
Avg Claims per Provider

ANDREW CHANG, MD's 4,433 claims are above the specialty average of 459.

Nearby Student in an Organized Health Care Education/Training Program Providers in Virginia

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

Compare Student in an Organized Health Care Education/Training Program nationally: see state-by-state distribution →

Frequently Asked Questions

What is ANDREW CHANG, MD's specialty?
ANDREW CHANG, MD specializes in Student in an Organized Health Care Education/Training Program and practices in CHARLOTTESVILLE, Virginia. Credentials: MD.
How much does ANDREW CHANG, MD prescribe under Medicare Part D?
In 2023, ANDREW CHANG, MD wrote 4,433 Medicare Part D claims totaling $330K in drug costs for 397 beneficiaries.
What is ANDREW CHANG, MD's Medicare quality score?
ANDREW CHANG, MD has a CMS MIPS Final Score of 79.3949/100 (Quality: 73.6607, Cost: 57.6556). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is ANDREW CHANG, MD located?
ANDREW CHANG, MD is located at 2335 SEMINOLE LN STE 200, CHARLOTTESVILLE, VA, 22901. Phone: (434) 975-7700.
What is ANDREW CHANG, MD's NPI number?
ANDREW CHANG, MD's National Provider Identifier (NPI) is 1093058091, issued on 03/28/2013.
Does ANDREW CHANG, MD prescribe more brand-name or generic drugs?
ANDREW CHANG, MD's prescribing is 9% brand-name and 91% generic drugs by claim count, with $247K in brand drug costs.
Does ANDREW CHANG, MD prescribe opioids?
Yes, ANDREW CHANG, MD had 71 opioid claims in 2023 with an opioid prescribing rate of 1.6%.
How many Student in an Organized Health Care Education/Training Program providers are there in the US?
There are 331,761 Student in an Organized Health Care Education/Training Program providers across 55 states in the US. The average Student in an Organized Health Care Education/Training Program provider writes 459 Medicare Part D claims per year.
What drugs does ANDREW CHANG, MD prescribe most often?
Based on 2023 Medicare Part D data, ANDREW CHANG, MD's most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ANDREW CHANG, MD accept Medicare?
ANDREW CHANG, MD appears in CMS Medicare data with 4,433 Part D claims and 397 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ANDREW CHANG, MD's credentials?
ANDREW CHANG, MD's NPI is 1093058091 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

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 (2023). 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 April 2026 (NPPES) / 2023 (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