2026 NPPES data Gynecology Physician NPI 1366491128 M.D.
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ALLAN WARSHOWSKY, M.D.

Gynecology Physician in RYE, New York. 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
259
Medicare Part D claims · 41 beneficiaries · Gynecology Physician avg: 295
Generic prescribing
81%
generic claims · 19% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

ALLAN WARSHOWSKY, M.D. filed 259 Medicare Part D claims in 2023 as a Gynecology Physician in RYE, New York, prescribing 81% generic.

259
Part D claims, 2023
81%
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.

ALLAN WARSHOWSKY, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

259 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)

ALLAN WARSHOWSKY, 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 ALLAN WARSHOWSKY, M.D.?

Quality data not reported

NPI registry status

Active

Issued 05/09/2006

NPI 1366491128

Primary specialty

Gynecology Physician

Niche

3,902 US NPIs in this specialty

Medicare Part D claims

259 12% vs specialty avg

2023 prescription claims

Specialty avg: 295

Specialty distribution in New York

How Gynecology Physician compares to other specialties among New York providers

New York providers

Gynecology Physician share within New York

1. Gynecology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Gynecology Physician share within New York

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).

ALLAN WARSHOWSKY, M.D. appears in the CMS NPPES registry as a Gynecology Physician provider holding M.D. credentials at 150 PURCHASE ST, RYE, NY, 10580, with a listed phone of (914) 967-1630. NPI 1366491128 was issued on 05/09/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WARSHOWSKY 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 259 prescription claims written by this provider, covering 41 Medicare beneficiaries and totaling roughly $13K in drug spend, split 19% brand-name and 81% 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

150 PURCHASE ST
RYE, NY 10580

Provider Details

NPI 1366491128
Specialty Gynecology Physician
Credentials M.D.
Gender Male
NPI Issued 05/09/2006

License & disciplinary context — New York NYSBPMC 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~100K New York medical licensees in 2023 — they are NOT specific to ALLAN WARSHOWSKY, M.D.. To verify ALLAN WARSHOWSKY, M.D.'s current license status, search the NYSBPMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

312
Total board actions, New York 2023
Across 302 cases
3.12
Actions per 1,000 licensees
New York statewide rate
probation
Most common action type
89 cases

NYSBPMC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the New York disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

ALLAN WARSHOWSKY, M.D. — brand share 19.0%
Specialty average (est.)

19% brand-name claims vs 81% generic, on 259 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.

259
Total Claims
$13K
Total Drug Cost
41
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
420
Total Day Supply
12,230
Brand vs Generic
19% brand / 81% generic
Brand Drug Cost
$5K
Generic Drug Cost
$6K

Patient Demographics

Average Patient Age
72.3 years
Avg HCC Risk Score
0.61

Top Prescribed Drugs (Medicare Part D)

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

What ALLAN WARSHOWSKY, 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
Levothyroxine Sodium
44
Liothyronine Sodium
39
Estradiol (Twice Weekly)
Estradiol
20
Metformin Hcl
12
Synthroid
Levothyroxine Sodium
12
Zolpidem Tartrate
11
Armour Thyroid
"Thyroid
N/A
Progesterone
"Progesterone
N/A

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

Gynecology Physician Overview

How ALLAN WARSHOWSKY, 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

ALLAN WARSHOWSKY, M.D.'s 259 claims are below the specialty average of 295.

Nearby Gynecology Physician Providers in New York

Other clinicians with the same primary specialty enrolled in New York, drawn from the same CMS NPPES roster as WARSHOWSKY.

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

Frequently Asked Questions

What is ALLAN WARSHOWSKY, M.D.'s specialty?
ALLAN WARSHOWSKY, M.D. specializes in Gynecology Physician and practices in RYE, New York. Credentials: M.D..
How much does ALLAN WARSHOWSKY, M.D. prescribe under Medicare Part D?
In 2023, ALLAN WARSHOWSKY, M.D. wrote 259 Medicare Part D claims totaling $13K in drug costs for 41 beneficiaries.
Where is ALLAN WARSHOWSKY, M.D. located?
ALLAN WARSHOWSKY, M.D. is located at 150 PURCHASE ST, RYE, NY, 10580. Phone: (914) 967-1630.
What is ALLAN WARSHOWSKY, M.D.'s NPI number?
ALLAN WARSHOWSKY, M.D.'s National Provider Identifier (NPI) is 1366491128, issued on 05/09/2006.
Does ALLAN WARSHOWSKY, M.D. prescribe more brand-name or generic drugs?
ALLAN WARSHOWSKY, M.D.'s prescribing is 19% brand-name and 81% generic drugs by claim count, with $5K 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 ALLAN WARSHOWSKY, M.D. prescribe most often?
Based on 2023 Medicare Part D data, ALLAN WARSHOWSKY, M.D.'s most frequently prescribed drugs include Levothyroxine Sodium, Liothyronine Sodium, Estradiol (Twice Weekly). This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ALLAN WARSHOWSKY, M.D. accept Medicare?
ALLAN WARSHOWSKY, M.D. appears in CMS Medicare data with 259 Part D claims and 41 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ALLAN WARSHOWSKY, M.D.'s credentials?
ALLAN WARSHOWSKY, M.D.'s NPI is 1366491128 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