2026 NPPES data Gynecology Physician NPI 1033382346 MD
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ELIZABETH BUESCHER, MD

Gynecology Physician in SAN JOSE, California. 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
68
Medicare Part D claims · 27 beneficiaries · Gynecology Physician avg: 295
Industry payments
$49.88
4 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: ELIZABETH BUESCHER, MD is a Gynecology Physician ([object Object]) practicing in SAN JOSE, California with a Medicare Part D prescribing footprint of 68 claims across 27 beneficiaries . Industry payments of $49.88 across 4 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: ELIZABETH BUESCHER, MD filed 68 Medicare Part D claims in 2023 across SAN JOSE, California. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

ELIZABETH BUESCHER, 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 BUESCHER, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 04/08/2008

NPI 1033382346

Primary specialty

Gynecology Physician

Niche

3,902 US NPIs in this specialty

Medicare Part D claims

68 77% vs specialty avg

2023 prescription claims

Specialty avg: 295

Specialty distribution in California

How Gynecology Physician compares to other specialties among California providers

California providers

Gynecology Physician share within California

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

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).

ELIZABETH BUESCHER, MD is a Gynecology Physician provider practicing in SAN JOSE, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1033382346. 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 BUESCHER, MD appears in the CMS NPPES registry as a Gynecology Physician provider holding MD credentials at 455 O'CONNOR DRIVE, SAN JOSE, CA, 95128, with a listed phone of (408) 831-5720. NPI 1033382346 was issued on 04/08/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BUESCHER 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 68 prescription claims written by this provider, covering 27 Medicare beneficiaries and totaling roughly $3K in drug spend. 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

455 O'CONNOR DRIVE
SAN JOSE, CA 95128

Provider Details

NPI 1033382346
Specialty Gynecology Physician
Credentials MD
Gender Female
NPI Issued 04/08/2008

Hospital and facility affiliations

Facilities where ELIZABETH BUESCHER, 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.

UNIVERSITY HEALTHCARE ALLIANCE
LOS GATOS, 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 ELIZABETH BUESCHER, MD. Source: openpaymentsdata.cms.gov.

Total received

$50

Largest payer

MAYNE PHARMA COMMERCIAL 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 — California MBC 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 ~150K California medical licensees in 2023 — they are NOT specific to ELIZABETH BUESCHER, MD. To verify ELIZABETH BUESCHER, MD's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC 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 California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

68
Total Claims
$3K
Total Drug Cost
27
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
139
Total Day Supply
3,627
Generic Drug Cost
$3K

Patient Demographics

Average Patient Age
72.5 years
Avg HCC Risk Score
0.74
Gender Split
100% female / 0% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Valacyclovir
Valacyclovir Hcl
15
Estradiol
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 ELIZABETH BUESCHER, MD fits within the Gynecology Physician landscape nationally.

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

ELIZABETH BUESCHER, MD's 68 claims are below the specialty average of 295.

Nearby Gynecology Physician Providers in California

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

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

Frequently Asked Questions

What is ELIZABETH BUESCHER, MD's specialty?
ELIZABETH BUESCHER, MD specializes in Gynecology Physician and practices in SAN JOSE, California. Credentials: MD.
How much does ELIZABETH BUESCHER, MD prescribe under Medicare Part D?
In 2023, ELIZABETH BUESCHER, MD wrote 68 Medicare Part D claims totaling $3K in drug costs for 27 beneficiaries.
Where is ELIZABETH BUESCHER, MD located?
ELIZABETH BUESCHER, MD is located at 455 O'CONNOR DRIVE, SAN JOSE, CA, 95128. Phone: (408) 831-5720.
What is ELIZABETH BUESCHER, MD's NPI number?
ELIZABETH BUESCHER, MD's National Provider Identifier (NPI) is 1033382346, issued on 04/08/2008.
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 ELIZABETH BUESCHER, MD prescribe most often?
Based on 2023 Medicare Part D data, ELIZABETH BUESCHER, MD's most frequently prescribed drugs include Valacyclovir, Estradiol. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ELIZABETH BUESCHER, MD accept Medicare?
ELIZABETH BUESCHER, MD appears in CMS Medicare data with 68 Part D claims and 27 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ELIZABETH BUESCHER, MD's credentials?
ELIZABETH BUESCHER, MD's NPI is 1033382346 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