2026 NPPES data Gynecology Physician NPI 1356389688 MD
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WENDY BUCHI, MD

Gynecology Physician in SAN DIEGO, 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
943
Medicare Part D claims · 251 beneficiaries · Gynecology Physician avg: 295
MIPS score
63.802/100
▼ 19 pts below national avg 83.1 · [object Object]
Industry payments
$913.87
43 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: WENDY BUCHI, MD is a Gynecology Physician ([object Object]) practicing in SAN DIEGO, California with a Medicare Part D prescribing footprint of 943 claims across 251 beneficiaries . Their CMS MIPS Final Score of 63.802/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $913.87 across 43 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: WENDY BUCHI, MD reported a CMS MIPS final score of 63.802 out of 100, below the 83.1 national average, and filed 943 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

WENDY BUCHI, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

WENDY BUCHI, MD at a glance

Below national average

NPI registry status

Active

Issued 06/02/2006

NPI 1356389688

Primary specialty

Gynecology Physician

Niche

3,902 US NPIs in this specialty

Medicare Part D claims

943 220% vs specialty avg

2023 prescription claims

Specialty avg: 295

MIPS final score

63.802/100 19.297999999999995% pts

Mid-tier band

vs 83.1 national avg

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

Medicare quality performance — MIPS

WENDY BUCHI, MD's 2023 MIPS final score plotted against the Gynecology Physician national average

Below national average
MIPS Final Score
63.802/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Gynecology Physician) — 63.802/100 vs national avg 83.1

0%100%National avg83%63.8%
MIPS final score (Gynecology Physician) — 63.802/100 vs national avg 83.1

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).

WENDY BUCHI, MD is a Gynecology Physician provider practicing in SAN DIEGO, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1356389688. 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.

WENDY BUCHI, MD appears in the CMS NPPES registry as a Gynecology Physician provider holding MD credentials at 9339 GENESEE AVE, SAN DIEGO, CA, 92121, with a listed phone of (858) 455-7520. NPI 1356389688 was issued on 06/02/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BUCHI 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 943 prescription claims written by this provider, covering 251 Medicare beneficiaries and totaling roughly $167K 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 63.802/100 for the 2023 performance year (Quality 38.5683), compared with the national average of 83.1.

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

9339 GENESEE AVE
SAN DIEGO, CA 92121

Provider Details

NPI 1356389688
Specialty Gynecology Physician
Credentials MD
Gender Female
NPI Issued 06/02/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

63.802
Final Score
Avg: 83.1
38.5683
Quality
83.6316
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where WENDY BUCHI, 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.

IGO MEDICAL GROUP AMC
SAN DIEGO, 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 WENDY BUCHI, MD. Source: openpaymentsdata.cms.gov.

Total received

$914

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.

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 WENDY BUCHI, MD. To verify WENDY BUCHI, 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.

943
Total Claims
$167K
Total Drug Cost
251
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,195
Total Day Supply
63,337
Generic Drug Cost
$56K
Antibiotic Claims
37

Patient Demographics

Average Patient Age
71.9 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.

Drug Claims
Estradiol
133
Estradiol (Twice Weekly)
Estradiol
127
Yuvafem
Estradiol
47
Levothyroxine Sodium
46
Valacyclovir
Valacyclovir Hcl
44
Estring
Estradiol
30
Imvexxy
Estradiol
29
Alendronate Sodium
28
Fluconazole
28
Dotti
Estradiol
27

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

Gynecology Physician Overview

How WENDY BUCHI, 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

WENDY BUCHI, MD's 943 claims are above 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 BUCHI.

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

Frequently Asked Questions

What is WENDY BUCHI, MD's specialty?
WENDY BUCHI, MD specializes in Gynecology Physician and practices in SAN DIEGO, California. Credentials: MD.
How much does WENDY BUCHI, MD prescribe under Medicare Part D?
In 2023, WENDY BUCHI, MD wrote 943 Medicare Part D claims totaling $167K in drug costs for 251 beneficiaries.
What is WENDY BUCHI, MD's Medicare quality score?
WENDY BUCHI, MD has a CMS MIPS Final Score of 63.802/100 (Quality: 38.5683). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is WENDY BUCHI, MD located?
WENDY BUCHI, MD is located at 9339 GENESEE AVE, SAN DIEGO, CA, 92121. Phone: (858) 455-7520.
What is WENDY BUCHI, MD's NPI number?
WENDY BUCHI, MD's National Provider Identifier (NPI) is 1356389688, issued on 06/02/2006.
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 WENDY BUCHI, MD prescribe most often?
Based on 2023 Medicare Part D data, WENDY BUCHI, MD's most frequently prescribed drugs include Estradiol, Estradiol (Twice Weekly), Yuvafem. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does WENDY BUCHI, MD accept Medicare?
WENDY BUCHI, MD appears in CMS Medicare data with 943 Part D claims and 251 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify WENDY BUCHI, MD's credentials?
WENDY BUCHI, MD's NPI is 1356389688 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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