2026 NPPES data Dermatology Physician NPI 1376661124 M.D.
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MARGARET KOPELMAN, M.D.

Dermatology Physician in FALLS CHURCH, 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
256
Medicare Part D claims · 116 beneficiaries · Dermatology Physician avg: 729
Generic prescribing
93%
generic claims · 7% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

MARGARET KOPELMAN, M.D. filed 256 Medicare Part D claims in 2023 as a Dermatology Physician in FALLS CHURCH, Virginia, prescribing 93% generic.

256
Part D claims, 2023
93%
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.

MARGARET KOPELMAN, M.D.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

256 49th percentile higher than 49% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. 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 Medicare Part D Prescriber Public Use File · 2023

Board-eligible specialty (heuristic — not verified)

MARGARET KOPELMAN, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about MARGARET KOPELMAN, M.D.?

Quality data not reported

NPI registry status

Active

Issued 03/27/2007

NPI 1376661124

Primary specialty

Dermatology Physician

Mid-sized

14,610 US NPIs in this specialty

Medicare Part D claims

256 65% vs specialty avg

2023 prescription claims

Specialty avg: 729

Specialty distribution in Virginia

How Dermatology Physician compares to other specialties among Virginia providers

Virginia providers

Dermatology Physician share within Virginia

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

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).

MARGARET KOPELMAN, M.D. appears in the CMS NPPES registry as a Dermatology Physician provider holding M.D. credentials at 407 N WASHINGTON ST STE 104, FALLS CHURCH, VA, 22046, with a listed phone of (703) 343-1064. NPI 1376661124 was issued on 03/27/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what KOPELMAN 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 256 prescription claims written by this provider, covering 116 Medicare beneficiaries and totaling roughly $180K in drug spend, split 7% brand-name and 93% 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

407 N WASHINGTON ST STE 104
FALLS CHURCH, VA 22046

Provider Details

NPI 1376661124
Specialty Dermatology Physician
Credentials M.D.
Gender Female
NPI Issued 03/27/2007

Brand vs generic prescribing mix · Generic-heavy

MARGARET KOPELMAN, M.D. — brand share 7.0%
Specialty average (est.)

7% brand-name claims vs 93% generic, on 256 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.

256
Total Claims
$180K
Total Drug Cost
116
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
350
Total Day Supply
10,371
Brand vs Generic
7% brand / 93% generic
Brand Drug Cost
$161K
Generic Drug Cost
$18K

Patient Demographics

Average Patient Age
73.7 years
Avg HCC Risk Score
0.94
Gender Split
69% female / 31% male

Top Prescribed Drugs (Medicare Part D)

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

What MARGARET KOPELMAN, M.D. 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
Clobetasol Propionate
46
Ketoconazole
32
Triamcinolone Acetonide
27
Fluorouracil
20
Minoxidil
16
Tacrolimus
16
Metronidazole
13

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

Dermatology Physician Overview

How MARGARET KOPELMAN, 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

MARGARET KOPELMAN, M.D.'s 256 claims are below the specialty average of 729.

Nearby Dermatology Physician Providers in Virginia

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

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

Frequently Asked Questions

What is MARGARET KOPELMAN, M.D.'s specialty?
MARGARET KOPELMAN, M.D. specializes in Dermatology Physician and practices in FALLS CHURCH, Virginia. Credentials: M.D..
How much does MARGARET KOPELMAN, M.D. prescribe under Medicare Part D?
In 2023, MARGARET KOPELMAN, M.D. wrote 256 Medicare Part D claims totaling $180K in drug costs for 116 beneficiaries.
Where is MARGARET KOPELMAN, M.D. located?
MARGARET KOPELMAN, M.D. is located at 407 N WASHINGTON ST STE 104, FALLS CHURCH, VA, 22046. Phone: (703) 343-1064.
What is MARGARET KOPELMAN, M.D.'s NPI number?
MARGARET KOPELMAN, M.D.'s National Provider Identifier (NPI) is 1376661124, issued on 03/27/2007.
Does MARGARET KOPELMAN, M.D. prescribe more brand-name or generic drugs?
MARGARET KOPELMAN, M.D.'s prescribing is 7% brand-name and 93% generic drugs by claim count, with $161K 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 MARGARET KOPELMAN, M.D. prescribe most often?
Based on 2023 Medicare Part D data, MARGARET KOPELMAN, M.D.'s most frequently prescribed drugs include Clobetasol Propionate, Ketoconazole, Triamcinolone Acetonide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MARGARET KOPELMAN, M.D. accept Medicare?
MARGARET KOPELMAN, M.D. appears in CMS Medicare data with 256 Part D claims and 116 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARGARET KOPELMAN, M.D.'s credentials?
MARGARET KOPELMAN, M.D.'s NPI is 1376661124 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