2026 NPPES data Obstetrics & Gynecology Physician NPI 1356380489 MD
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ELIZABETH ALLEN, MD

Obstetrics & Gynecology Physician in TONAWANDA, 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
2K
Medicare Part D claims · 535 beneficiaries · Obstetrics & Gynecology Physician avg: 179
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$200.6
10 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: ELIZABETH ALLEN, MD is a Obstetrics & Gynecology Physician ([object Object]) practicing in TONAWANDA, New York with a Medicare Part D prescribing footprint of 2K claims across 535 beneficiaries — 11% brand-name prescribing . Industry payments of $200.6 across 10 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: ELIZABETH ALLEN, MD filed 1,512 Medicare Part D claims in 2023 across TONAWANDA, New York. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

ELIZABETH ALLEN, MD 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).

ELIZABETH ALLEN, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 06/05/2006

NPI 1356380489

Primary specialty

Obstetrics & Gynecology Physician

Mid-sized

44,313 US NPIs in this specialty

Medicare Part D claims

1,512 745% vs specialty avg

2023 prescription claims

Specialty avg: 179

Specialty distribution in New York

How Obstetrics & Gynecology Physician compares to other specialties among New York providers

New York providers

Obstetrics & Gynecology Physician share within New York

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

Specialty board-certification context

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

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

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

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

ELIZABETH ALLEN, MD is a Obstetrics & Gynecology Physician provider practicing in TONAWANDA, New York, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1356380489. 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.

ELIZABETH ALLEN, MD appears in the CMS NPPES registry as a Obstetrics & Gynecology Physician provider holding MD credentials at 4041 DELAWARE AVE, TONAWANDA, NY, 14150, with a listed phone of (716) 876-5512. NPI 1356380489 was issued on 06/05/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ALLEN 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 1,512 prescription claims written by this provider, covering 535 Medicare beneficiaries and totaling roughly $147K in drug spend, split 11% brand-name and 89% 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.

Obstetrics & Gynecology Physician is a mid-sized specialty nationwide, with 44,313 enrolled providers across 56 states and an average of 179 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

4041 DELAWARE AVE
TONAWANDA, NY 14150

Provider Details

NPI 1356380489
Specialty Obstetrics & Gynecology Physician
Credentials MD
Gender Female
NPI Issued 06/05/2006

Hospital and facility affiliations

Facilities where ELIZABETH ALLEN, MD 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.

SUBURBAN WOMENS HEALTHCARE P.C.
AMHERST, NY

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 ELIZABETH ALLEN, MD. Source: openpaymentsdata.cms.gov.

Total received

$201

Largest payer

Hologic Sales and Service, LLC

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.

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 ELIZABETH ALLEN, MD. To verify ELIZABETH ALLEN, MD'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

ELIZABETH ALLEN, MD — brand share 11.0%
Specialty average (est.)

11% brand-name claims vs 89% generic, on 1,512 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.

1,512
Total Claims
$147K
Total Drug Cost
535
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,186
Total Day Supply
89,296
Brand vs Generic
11% brand / 89% generic
Brand Drug Cost
$58K
Generic Drug Cost
$89K
Antibiotic Claims
94

Patient Demographics

Average Patient Age
70.5 years
Avg HCC Risk Score
0.81
Gender Split
100% female / 0% male
Age Distribution
<65: 43, 65-74: 344, 75-84: 133, 85+: 15

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Estradiol
322
Valacyclovir
Valacyclovir Hcl
111
Fluconazole
85
Alendronate Sodium
81
Clobetasol Propionate
61
Raloxifene Hcl
49
Ciprofloxacin Hcl
40
Escitalopram Oxalate
39
Estradiol (Once Weekly)
Estradiol
38
Medroxyprogesterone Acetate
38

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

Obstetrics & Gynecology Physician Overview

How ELIZABETH ALLEN, MD fits within the Obstetrics & Gynecology Physician landscape nationally.

44,313
Obstetrics & Gynecology Physician Providers in US
56
States with Obstetrics & Gynecology Physician
179
Avg Claims per Provider

ELIZABETH ALLEN, MD's 1,512 claims are above the specialty average of 179.

Nearby Obstetrics & 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 ALLEN.

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

Frequently Asked Questions

What is ELIZABETH ALLEN, MD's specialty?
ELIZABETH ALLEN, MD specializes in Obstetrics & Gynecology Physician and practices in TONAWANDA, New York. Credentials: MD.
How much does ELIZABETH ALLEN, MD prescribe under Medicare Part D?
In 2023, ELIZABETH ALLEN, MD wrote 1,512 Medicare Part D claims totaling $147K in drug costs for 535 beneficiaries.
Where is ELIZABETH ALLEN, MD located?
ELIZABETH ALLEN, MD is located at 4041 DELAWARE AVE, TONAWANDA, NY, 14150. Phone: (716) 876-5512.
What is ELIZABETH ALLEN, MD's NPI number?
ELIZABETH ALLEN, MD's National Provider Identifier (NPI) is 1356380489, issued on 06/05/2006.
Does ELIZABETH ALLEN, MD prescribe more brand-name or generic drugs?
ELIZABETH ALLEN, MD's prescribing is 11% brand-name and 89% generic drugs by claim count, with $58K in brand drug costs.
How many Obstetrics & Gynecology Physician providers are there in the US?
There are 44,313 Obstetrics & Gynecology Physician providers across 56 states in the US. The average Obstetrics & Gynecology Physician provider writes 179 Medicare Part D claims per year.
What drugs does ELIZABETH ALLEN, MD prescribe most often?
Based on 2023 Medicare Part D data, ELIZABETH ALLEN, MD's most frequently prescribed drugs include Estradiol, Valacyclovir, Fluconazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ELIZABETH ALLEN, MD accept Medicare?
ELIZABETH ALLEN, MD appears in CMS Medicare data with 1,512 Part D claims and 535 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ELIZABETH ALLEN, MD's credentials?
ELIZABETH ALLEN, MD's NPI is 1356380489 with credentials MD. 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