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2026 NPPES data Dermatology Physician NPI 1245358985 M.D., F.A.A.D.
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Agnes Chang, M.D., F.A.A.D.

Dermatology Physician in Washington, District of Columbia.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 15,011 in Dermatology 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
228
Medicare Part D claims · 93 beneficiaries · Dermatology Physician avg: 799
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
83.3/100
▼ 0 pts below national avg 83.5 · Above neutral
Industry payments
$17.3K
62 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

Agnes Chang, M.D., F.A.A.D. reported a CMS MIPS final score of 83.3/100 - below the 83.5 national average - and filed 228 Medicare Part D claims in 2024.

83.3/100
MIPS score · 0 vs avg
228
Part D claims, 2024
91%
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 Agnes Chang, M.D., F.A.A.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 1245358985), first enumerated 03/27/2007.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 228 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 83.3/100 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

    $17.3K in reported industry payments (62 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.

    Source: CMS Open Payments

  • 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 1245358985 · Dermatology Physician

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

  • NPI-10 1245358985
  • ENUM-MID 2007
  • TAX-MID 15K Dermatology Physician
  • MIPS-INLINE 83.3/100
  • RX-LIGHT 228
  • BOOK-THIN 61 in District of Columbia
  • PHOTO-FINISH Mary Barber · ±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

Agnes Chang, M.D., F.A.A.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.

83 ≥ 39th percentile 39% 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 Agnes Chang, M.D., F.A.A.D. sits

This provider among dermatology physician peers

Across the 5,700 dermatology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Agnes Chang, M.D., F.A.A.D. writes more Part D claims than 15% of them and scores higher on MIPS quality than 38% - placing this provider in the lower-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 quality0255075100023.647.370.994.5Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 5Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 48Agnes Chang, M.D., F.A.A.D., Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 38
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one dermatology physician peer from a representative sample of 60; the gold marker is Agnes Chang, M.D., F.A.A.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

✓
Board certification likely (heuristic, not verified)

Agnes Chang, M.D., F.A.A.D. 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 Agnes Chang, M.D., F.A.A.D.?

Near national average

NPI registry status

Active

Issued 03/27/2007

NPI 1245358985

Primary specialty

Dermatology Physician

Mid-sized

15,011 US NPIs in this specialty

Medicare Part D claims

228 71% vs specialty avg

2024 prescription claims

Specialty avg: 799

MIPS final score

83.3/100 0.2 pts vs avg

Above neutral band

vs 83.5 national avg

Specialty distribution in District of Columbia

How Dermatology Physician compares to other specialties among District of Columbia providers

District of Columbia providers
Home Health Aide20.3%Personal Care Attendant12%Case Manager/Care Coordinator7.1%Student in an Organized Heal…6.4%Clinical Social Worker4%Internal Medicine Physician2%Dermatology Physician0.1%
Largest specialties in District of Columbia (% of in-state providers)

Medicare quality performance, MIPS

Agnes Chang, M.D., F.A.A.D.'s 2023 MIPS final score plotted against the Dermatology Physician national average

Near national average
MIPS Final Score
83.3/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%83.3%
MIPS final score (Dermatology Physician) - 83.3/100 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

2021 K ST NW STE 206
Washington, DC 20006
(202) 293-3990

Provider Details

NPI 1245358985
Specialty Dermatology Physician
Credentials M.D., F.A.A.D.
Gender Female
NPI Issued 03/27/2007

CMS Quality Score (MIPS)

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

83.3333
Final Score
Measured-score avg: 83.5
66.6667
Quality

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 Agnes Chang, M.D., F.A.A.D.. Source: openpaymentsdata.cms.gov.

Total received

$17.3K

Largest payer

ABBVIE 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.

Brand vs generic prescribing mix · Generic-heavy

Agnes Chang, M.D., F.A.A.D. - brand share 9.0%
Dermatology Physician average

9% brand-name claims vs 91% generic, on 228 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.

228
Total Claims
$71K
Total Drug Cost
93
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
305.8
Total Day Supply
7,764
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$61K
Generic Drug Cost
$11K
Antibiotic Claims
16

Patient Demographics

Average Patient Age
75.3 years
Avg HCC Risk Score
0.88
Gender Split
51% female / 49% male

Top Prescribed Drugs (Medicare Part D)

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

What Agnes Chang, M.D., F.A.A.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
Triamcinolone Acetonide
 27
Valacyclovir
Valacyclovir Hcl
24
Doxycycline Hyclate
 23
Clobetasol Propionate
 17
Fluorouracil
 13

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

More Dermatology Physician in DC → All providers in District of Columbia → Compare specialties →

Dermatology Physician Overview

How Agnes Chang, M.D., F.A.A.D. fits within the Dermatology Physician landscape nationally.

15,011
Dermatology Physician Providers in US
53
States with Dermatology Physician
799
Avg Claims per Provider

Agnes Chang, M.D., F.A.A.D.'s 228 claims are below the specialty average of 799.

Nationwide Dermatology Physician peers with similar MIPS or enrollment year

Two federal-record peer sets for Chang, both outside District of Columbia so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (83.3 here).

Cynthia Yalowitz 83.3 NY Danielle Baruch 83.3 MD Mary Barber 83.3 FL Anthony Nuara 83.3 AZ

Same NPPES enumeration year (2007)

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

Kathani Vahabzadeh Centennial, CO Brian Fabian Jacksonville, FL Emmy Graber Boston, MA Mathew Cannava Soldotna, AK

Nearby Dermatology Physician Providers in District of Columbia

Other clinicians with the same primary specialty enrolled in District of Columbia, drawn from the same CMS NPPES roster as Chang.

One of 61 Dermatology Physician providers enrolled in District of Columbia, 5 are shown here.

Susan Barry
Washington, DC
Dr. Eliot Battle
M.D.
Washington, DC
Dr. Meghan Beatson
MD
Washington, DC
Dr. Marilyn Berzin
M.D.
Washington, DC
Dr. Laura Boger
MD
Washington, DC

Compare Dermatology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is Agnes Chang, M.D., F.A.A.D.'s specialty? ▼
Agnes Chang, M.D., F.A.A.D. specializes in Dermatology Physician and practices in Washington, District of Columbia. Credentials: M.D., F.A.A.D..
How much does Agnes Chang, M.D., F.A.A.D. prescribe under Medicare Part D? ▼
In 2024, Agnes Chang, M.D., F.A.A.D. wrote 228 Medicare Part D claims totaling $71K in drug costs for 93 beneficiaries.
What is Agnes Chang, M.D., F.A.A.D.'s Medicare quality score? ▼
Agnes Chang, M.D., F.A.A.D. has a CMS MIPS Final Score of 83.3/100 (Quality: 66.7). 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 Agnes Chang, M.D., F.A.A.D. located? ▼
Agnes Chang, M.D., F.A.A.D. is located at 2021 K ST NW STE 206, Washington, DC, 20006. Phone: (202) 293-3990.
What is Agnes Chang, M.D., F.A.A.D.'s NPI number? ▼
Agnes Chang, M.D., F.A.A.D.'s National Provider Identifier (NPI) is 1245358985, issued on 03/27/2007.
Does Agnes Chang, M.D., F.A.A.D. prescribe more brand-name or generic drugs? ▼
Agnes Chang, M.D., F.A.A.D.'s prescribing is 9% brand-name and 91% generic drugs by claim count, with $61K in brand drug costs.
How many Dermatology Physician providers are there in the US? ▼
There are 15,011 Dermatology Physician providers across 53 states in the US. The average Dermatology Physician provider writes 799 Medicare Part D claims per year.
What drugs does Agnes Chang, M.D., F.A.A.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Agnes Chang, M.D., F.A.A.D.'s most frequently prescribed drugs include Triamcinolone Acetonide, Valacyclovir, Doxycycline Hyclate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Agnes Chang, M.D., F.A.A.D. accept Medicare? ▼
Agnes Chang, M.D., F.A.A.D. appears in CMS Medicare data with 228 Part D claims and 93 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Agnes Chang, M.D., F.A.A.D.'s credentials? ▼
Agnes Chang, M.D., F.A.A.D.'s NPI is 1245358985 with credentials M.D., F.A.A.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.