2026 NPPES data Gynecology Physician NPI 1649215120 M.D.
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GEORGE SAMMAN, M.D.

Gynecology Physician in WASHINGTON, District of Columbia. 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
136
Medicare Part D claims · 38 beneficiaries · Gynecology Physician avg: 295
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$14.29
1 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: GEORGE SAMMAN, M.D. is a Gynecology Physician ([object Object]) practicing in WASHINGTON, District of Columbia with a Medicare Part D prescribing footprint of 136 claims across 38 beneficiaries — 13% brand-name prescribing . Industry payments of $14.29 across 1 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: GEORGE SAMMAN, M.D. filed 136 Medicare Part D claims in 2023 across WASHINGTON, District of Columbia. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

GEORGE SAMMAN, 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).

GEORGE SAMMAN, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 06/18/2006

NPI 1649215120

Primary specialty

Gynecology Physician

Niche

3,902 US NPIs in this specialty

Medicare Part D claims

136 54% vs specialty avg

2023 prescription claims

Specialty avg: 295

Specialty distribution in District of Columbia

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

District of Columbia providers

Gynecology Physician share within District of Columbia

1. Gynecology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Gynecology Physician share within District of Columbia

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Gynecology 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).

GEORGE SAMMAN, M.D. is a Gynecology Physician provider practicing in WASHINGTON, District of Columbia, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1649215120. 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.

GEORGE SAMMAN, M.D. appears in the CMS NPPES registry as a Gynecology Physician provider holding M.D. credentials at 2021 K ST NW, WASHINGTON, DC, 20006, with a listed phone of (202) 833-8538. NPI 1649215120 was issued on 06/18/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SAMMAN 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 136 prescription claims written by this provider, covering 38 Medicare beneficiaries and totaling roughly $3K in drug spend, split 13% brand-name and 87% 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.

Gynecology Physician is a narrow specialty nationwide, with 3,902 enrolled providers across 53 states and an average of 295 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

2021 K ST NW
WASHINGTON, DC 20006

Provider Details

NPI 1649215120
Specialty Gynecology Physician
Credentials M.D.
Gender Male
NPI Issued 06/18/2006

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 GEORGE SAMMAN, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$14

Largest payer

Astellas Pharma US 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 · Typical

GEORGE SAMMAN, M.D. — brand share 13.0%
Specialty average (est.)

13% brand-name claims vs 87% generic, on 136 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.

136
Total Claims
$3K
Total Drug Cost
38
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
174
Total Day Supply
2,893
Brand vs Generic
13% brand / 87% generic
Brand Drug Cost
$1K
Generic Drug Cost
$2K
Antibiotic Claims
35

Patient Demographics

Average Patient Age
69.5 years
Avg HCC Risk Score
0.89

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Fluconazole
40
Nitrofurantoin Mono-Macro
Nitrofurantoin Monohyd/M-Cryst
14

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

Gynecology Physician Overview

How GEORGE SAMMAN, M.D. fits within the Gynecology Physician landscape nationally.

3,902
Gynecology Physician Providers in US
53
States with Gynecology Physician
295
Avg Claims per Provider

GEORGE SAMMAN, M.D.'s 136 claims are below the specialty average of 295.

Nearby Gynecology 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 SAMMAN.

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

Frequently Asked Questions

What is GEORGE SAMMAN, M.D.'s specialty?
GEORGE SAMMAN, M.D. specializes in Gynecology Physician and practices in WASHINGTON, District of Columbia. Credentials: M.D..
How much does GEORGE SAMMAN, M.D. prescribe under Medicare Part D?
In 2023, GEORGE SAMMAN, M.D. wrote 136 Medicare Part D claims totaling $3K in drug costs for 38 beneficiaries.
Where is GEORGE SAMMAN, M.D. located?
GEORGE SAMMAN, M.D. is located at 2021 K ST NW, WASHINGTON, DC, 20006. Phone: (202) 833-8538.
What is GEORGE SAMMAN, M.D.'s NPI number?
GEORGE SAMMAN, M.D.'s National Provider Identifier (NPI) is 1649215120, issued on 06/18/2006.
Does GEORGE SAMMAN, M.D. prescribe more brand-name or generic drugs?
GEORGE SAMMAN, M.D.'s prescribing is 13% brand-name and 87% generic drugs by claim count, with $1K in brand drug costs.
How many Gynecology Physician providers are there in the US?
There are 3,902 Gynecology Physician providers across 53 states in the US. The average Gynecology Physician provider writes 295 Medicare Part D claims per year.
What drugs does GEORGE SAMMAN, M.D. prescribe most often?
Based on 2023 Medicare Part D data, GEORGE SAMMAN, M.D.'s most frequently prescribed drugs include Fluconazole, Nitrofurantoin Mono-Macro. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does GEORGE SAMMAN, M.D. accept Medicare?
GEORGE SAMMAN, M.D. appears in CMS Medicare data with 136 Part D claims and 38 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify GEORGE SAMMAN, M.D.'s credentials?
GEORGE SAMMAN, M.D.'s NPI is 1649215120 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