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2026 NPPES data Obstetrics & Gynecology Physician NPI 1215148291 M.D.
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Rae-Pei Cherng, M.D.

Obstetrics & Gynecology Physician in San Jose, California.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 44,326 in Obstetrics & Gynecology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
97
Medicare Part D claims · 30 beneficiaries · Obstetrics & Gynecology Physician avg: 179
Generic prescribing
86%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
80.6/100
▼ 3 pts below national avg 83.5 · Above neutral
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

Rae-Pei Cherng, M.D. reported a CMS MIPS final score of 80.6/100 - below the 83.5 national average - and filed 97 Medicare Part D claims in 2023.

80.6/100
MIPS score · -3 vs avg
97
Part D claims, 2023
86%
generic prescribing
Likely
board-certified (heuristic)

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.

CMS NPPES provider registry desk

NPI 1215148291 · Obstetrics & Gynecology Physician

NPI-10 · ENUM-MID · TAX-MID · MIPS-INLINE · RX-TRACE · BOOK-LIGHT · PHOTO-FINISH

  • NPI-10 1215148291
  • ENUM-MID 2007
  • TAX-MID 44K Obstetrics &
  • MIPS-INLINE 80.6/100
  • RX-TRACE 97
  • BOOK-LIGHT 4,943 in California
  • PHOTO-FINISH Kelsey Baker · ±0.0

MIPS final-score neighbourhood

Same-specialty nationwide peers by CMS final score, not geographic proximity

MIPS pts

What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).

Source CMS Quality Payment Program (MIPS) As of 2023

Rae-Pei Cherng, M.D.'s MIPS score vs every measured U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.

81 ≥ 30th percentile 30% of 454,083 measured providers are in lower value bands

0–10: 8,684 measured providers (2%). Below this entry. 10–20: 3,008 measured providers (1%). Below this entry. 20–30: 3,069 measured providers (1%). Below this entry. 30–40: 2,746 measured providers (1%). Below this entry. 40–50: 2,928 measured providers (1%). Below this entry. 50–60: 5,882 measured providers (1%). Below this entry. 60–70: 13,906 measured providers (3%). Below this entry. 70–80: 94,570 measured providers (21%). Below this entry. 80–90: 129,887 measured providers (29%). This entry sits in this band. 90+: 189,403 measured providers (42%). Above this entry. This provider 0 100 every measured MIPS clinician, bucketed by value

Each bar is a band; taller bars hold more measured providers. 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.

The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Where Rae-Pei Cherng, M.D. sits

This provider among obstetrics & gynecology physician peers

Across the 7,360 obstetrics & gynecology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Rae-Pei Cherng, M.D. writes more Part D claims than 49% of them and scores higher on MIPS quality than 27% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality02550751000255075100Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 5Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 3Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 88Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 67Rae-Pei Cherng, M.D., Part D claim volume, percentile in specialty: 49 · MIPS quality, percentile: 27
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one obstetrics & gynecology physician peer from a representative sample of 60; the gold marker is Rae-Pei Cherng, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

✓
Board certification likely (heuristic, not verified)

Rae-Pei Cherng, M.D. 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).

What does the federal data show about Rae-Pei Cherng, M.D.?

Near national average

NPI registry status

Active

Issued 05/24/2007

NPI 1215148291

Primary specialty

Obstetrics & Gynecology Physician

Mid-sized

44,326 US NPIs in this specialty

Medicare Part D claims

97 46% vs specialty avg

2023 prescription claims

Specialty avg: 179

MIPS final score

80.6/100 2.9 pts vs avg

Above neutral band

vs 83.5 national avg

Specialty distribution in California

How Obstetrics & Gynecology Physician compares to other specialties among California providers

California providers
Behavior Technician17.3%Marriage & Family Therapist5.5%Student in an Organized Heal…5%Mental Health Counselor3.9%Pharmacist3.5%Clinical Social Worker3.1%Obstetrics & Gynecology Phys…0.5%
Largest specialties in California (% of in-state providers)

Medicare quality performance, MIPS

Rae-Pei Cherng, M.D.'s 2023 MIPS final score plotted against the Obstetrics & Gynecology Physician national average

Near national average
MIPS Final Score
80.6/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%80.6%
MIPS final score (Obstetrics & Gynecology Physician) - 80.6/100 vs national avg 83.5
How MIPS and board certification work

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).

Practice Address

751 S BASCOM AVE
San Jose, CA 95128
(408) 885-5552

Provider Details

NPI 1215148291
Specialty Obstetrics & Gynecology Physician
Credentials M.D.
Gender Female
NPI Issued 05/24/2007

CMS Quality Score (MIPS)

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

80.5834
Final Score
Measured-score avg: 83.5
67.4314
Quality
46.5098
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where Rae-Pei Cherng, M.D. 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.

County OF Santa Clara
San Jose, 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).

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 Rae-Pei Cherng, M.D.. To verify Rae-Pei Cherng, M.D.'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.

Brand vs generic prescribing mix · Typical

Rae-Pei Cherng, M.D. - brand share 14.0%
Obstetrics & Gynecology Physician average

14% brand-name claims vs 86% generic, on 97 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.

97
Total Claims
$10K
Total Drug Cost
30
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
141
Total Day Supply
3,629
Brand vs Generic
14% brand / 86% generic
Brand Drug Cost
$7K
Generic Drug Cost
$3K
Antibiotic Claims
12

Patient Demographics

Average Patient Age
63.4 years
Avg HCC Risk Score
1.21
Gender Split
100% female / 0% male
Age Distribution
<65: 11, 65-74: 15, 75-84: N/A, 85+: N/A

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 (Once Weekly)
Estradiol
14

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

More Obstetrics & Gynecology Physician in CA → All providers in California → Compare specialties →

Obstetrics & Gynecology Physician Overview

How Rae-Pei Cherng, M.D. fits within the Obstetrics & Gynecology Physician landscape nationally.

44,326
Obstetrics & Gynecology Physician Providers in US
56
States with Obstetrics & Gynecology Physician
179
Avg Claims per Provider

Rae-Pei Cherng, M.D.'s 97 claims are below the specialty average of 179.

Nationwide Obstetrics & Gynecology Physician peers with similar MIPS or enrollment year

Two federal-record peer sets for Cherng, both outside California so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (80.6 here).

Kaye Anne Douglas 80.6 NY Sean Spector 80.6 NJ Kelsey Baker 80.6 MI Kiran Balchandani 80.6 MI

Same NPPES enumeration year (2007)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Jeremy Vaughan Cedar Hill, TX Meredith Kemper Sioux Falls, SD Abigail Dennis Baltimore, MD Erin Collins Edina, MN

Nearby Obstetrics & Gynecology Physician Providers in California

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

One of 4,943 Obstetrics & Gynecology Physician providers enrolled in California, 5 are shown here.

Dr. Ingrid Aalami
MD
San Jose, CA
Dr. Avisa Abaian- Eagar
M.D.
Orange, CA
Dr. Derek Abbassi
MD
Walnut Creek, CA
Dr. Nicole Abell
DO
Ventura, CA
Zachary Abelson
Los Angeles, CA

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

Frequently Asked Questions

What is Rae-Pei Cherng, M.D.'s specialty? ▼
Rae-Pei Cherng, M.D. specializes in Obstetrics & Gynecology Physician and practices in San Jose, California. Credentials: M.D..
How much does Rae-Pei Cherng, M.D. prescribe under Medicare Part D? ▼
In 2023, Rae-Pei Cherng, M.D. wrote 97 Medicare Part D claims totaling $10K in drug costs for 30 beneficiaries.
What is Rae-Pei Cherng, M.D.'s Medicare quality score? ▼
Rae-Pei Cherng, M.D. has a CMS MIPS Final Score of 80.6/100 (Quality: 67.4, Cost: 46.5). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Rae-Pei Cherng, M.D. located? ▼
Rae-Pei Cherng, M.D. is located at 751 S BASCOM AVE, San Jose, CA, 95128. Phone: (408) 885-5552.
What is Rae-Pei Cherng, M.D.'s NPI number? ▼
Rae-Pei Cherng, M.D.'s National Provider Identifier (NPI) is 1215148291, issued on 05/24/2007.
Does Rae-Pei Cherng, M.D. prescribe more brand-name or generic drugs? ▼
Rae-Pei Cherng, M.D.'s prescribing is 14% brand-name and 86% generic drugs by claim count, with $7K in brand drug costs.
How many Obstetrics & Gynecology Physician providers are there in the US? ▼
There are 44,326 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 Rae-Pei Cherng, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Rae-Pei Cherng, M.D.'s most frequently prescribed drugs include Estradiol (Once Weekly). This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Rae-Pei Cherng, M.D. accept Medicare? ▼
Rae-Pei Cherng, M.D. appears in CMS Medicare data with 97 Part D claims and 30 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Rae-Pei Cherng, M.D.'s credentials? ▼
Rae-Pei Cherng, M.D.'s NPI is 1215148291 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

View source datasets and methodology notes
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

Compiled from official public sources by the editorial process.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.