2026 NPPES data Dermatology Physician NPI 1881850840 M.D.
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ANNE HAN, M.D.

Dermatology Physician in BALTIMORE, Maryland. 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
481
Medicare Part D claims · 173 beneficiaries · Dermatology Physician avg: 729
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$1.7K
35 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: ANNE HAN, M.D. is a Dermatology Physician ([object Object]) practicing in BALTIMORE, Maryland with a Medicare Part D prescribing footprint of 481 claims across 173 beneficiaries — 9% brand-name prescribing . Industry payments of $1.7K across 35 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: ANNE HAN, M.D. filed 481 Medicare Part D claims in 2023 across BALTIMORE, Maryland. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

ANNE HAN, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

ANNE HAN, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 07/30/2008

NPI 1881850840

Primary specialty

Dermatology Physician

Mid-sized

14,610 US NPIs in this specialty

Medicare Part D claims

481 34% vs specialty avg

2023 prescription claims

Specialty avg: 729

Specialty distribution in Maryland

How Dermatology Physician compares to other specialties among Maryland providers

Maryland providers

Dermatology Physician share within Maryland

1. Dermatology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Dermatology Physician share within Maryland

Specialty board-certification context

Estimated specialty board-certified rate — Dermatology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Dermatology Physician ABMS/AOA estimate

Est. board-certified rate (Dermatology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Dermatology Physician) — ABMS / AOA estimate

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).

ANNE HAN, M.D. is a Dermatology Physician provider practicing in BALTIMORE, Maryland, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1881850840. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

ANNE HAN, M.D. appears in the CMS NPPES registry as a Dermatology Physician provider holding M.D. credentials at 5200 EASTERN AVE, BALTIMORE, MD, 21224, with a listed phone of (646) 825-1178. NPI 1881850840 was issued on 07/30/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HAN 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 481 prescription claims written by this provider, covering 173 Medicare beneficiaries and totaling roughly $104K in drug spend, split 9% brand-name and 91% generic by claim count. 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.

Dermatology Physician is a mid-sized specialty nationwide, with 14,610 enrolled providers across 53 states and an average of 729 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

5200 EASTERN AVE
BALTIMORE, MD 21224

Provider Details

NPI 1881850840
Specialty Dermatology Physician
Credentials M.D.
Gender Female
NPI Issued 07/30/2008

Hospital and facility affiliations

Facilities where ANNE HAN, 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.

SUTTER BAY MEDICAL FOUNDATION
SAN FRANCISCO, CA

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 ANNE HAN, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$1.7K

Largest payer

LEO Pharma 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

ANNE HAN, M.D. — brand share 9.0%
Specialty average (est.)

9% brand-name claims vs 91% generic, on 481 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.

481
Total Claims
$104K
Total Drug Cost
173
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
555
Total Day Supply
14,480
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$82K
Generic Drug Cost
$23K
Antibiotic Claims
18

Patient Demographics

Average Patient Age
74.5 years
Avg HCC Risk Score
1.21
Gender Split
57% female / 43% male
Age Distribution
<65: 12, 65-74: 77, 75-84: 62, 85+: 22

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Betamethasone Diprop Augmented
Betamethasone/Propylene Glyc
117
Ketoconazole
36
Clobetasol Propionate
33
Hydrocortisone
33
Fluocinonide
31
Triamcinolone Acetonide
22
Ciclopirox
17
Tretinoin
15
Econazole Nitrate
13
Mupirocin
12

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

Dermatology Physician Overview

How ANNE HAN, M.D. fits within the Dermatology Physician landscape nationally.

14,610
Dermatology Physician Providers in US
53
States with Dermatology Physician
729
Avg Claims per Provider

ANNE HAN, M.D.'s 481 claims are below the specialty average of 729.

Nearby Dermatology Physician Providers in Maryland

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

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

Frequently Asked Questions

What is ANNE HAN, M.D.'s specialty?
ANNE HAN, M.D. specializes in Dermatology Physician and practices in BALTIMORE, Maryland. Credentials: M.D..
How much does ANNE HAN, M.D. prescribe under Medicare Part D?
In 2023, ANNE HAN, M.D. wrote 481 Medicare Part D claims totaling $104K in drug costs for 173 beneficiaries.
Where is ANNE HAN, M.D. located?
ANNE HAN, M.D. is located at 5200 EASTERN AVE, BALTIMORE, MD, 21224. Phone: (646) 825-1178.
What is ANNE HAN, M.D.'s NPI number?
ANNE HAN, M.D.'s National Provider Identifier (NPI) is 1881850840, issued on 07/30/2008.
Does ANNE HAN, M.D. prescribe more brand-name or generic drugs?
ANNE HAN, M.D.'s prescribing is 9% brand-name and 91% generic drugs by claim count, with $82K in brand drug costs.
How many Dermatology Physician providers are there in the US?
There are 14,610 Dermatology Physician providers across 53 states in the US. The average Dermatology Physician provider writes 729 Medicare Part D claims per year.
What drugs does ANNE HAN, M.D. prescribe most often?
Based on 2023 Medicare Part D data, ANNE HAN, M.D.'s most frequently prescribed drugs include Betamethasone Diprop Augmented, Ketoconazole, Clobetasol Propionate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ANNE HAN, M.D. accept Medicare?
ANNE HAN, M.D. appears in CMS Medicare data with 481 Part D claims and 173 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ANNE HAN, M.D.'s credentials?
ANNE HAN, M.D.'s NPI is 1881850840 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

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.
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