NPI registry status
Active
2026 NPPES data Obstetrics Physician NPI 1710914262 MD
Verify on CMS → Angela Chen, MD
Obstetrics Physician in Los Angeles, 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 1,396 in Obstetrics 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
87
Medicare Part D claims · 30 beneficiaries · Obstetrics Physician avg: 319
Generic prescribing
74%
generic claims · 26% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
77.3/100
▼ 6 pts below national avg 83.1 · Above neutral
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Angela Chen, MD reported a CMS MIPS final score of 77.3/100 - below the 83.1 national average - and filed 87 Medicare Part D claims in 2023.
- 77.3/100
- MIPS score · -6 vs avg
- 87
- Part D claims, 2023
- 74%
- 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.
Angela Chen, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
77 24th percentile higher than 24% of 477,587 scored providers
Each bar is a band; taller bars hold more scored 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.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Angela Chen, MD sits
This provider among obstetrics physician peers
Across the 243 obstetrics physician providers who report both Medicare Part D prescribing and a MIPS quality score, Angela Chen, MD writes more Part D claims than 43% of them and scores higher on MIPS quality than 13% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one obstetrics physician peer from a representative sample of 60; the gold marker is Angela Chen, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Angela Chen, 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).
What does the federal data show about Angela Chen, MD?
Below national averagePrimary specialty
Obstetrics Physician
Medicare Part D claims
87 73% vs specialty avg
MIPS final score
77.3/100 5.8 pts vs avg
Specialty distribution in California
How Obstetrics Physician compares to other specialties among California providers
Medicare quality performance, MIPS
Angela Chen, MD's 2023 MIPS final score plotted against the Obstetrics Physician national average
- MIPS Final Score
- 77.3/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Obstetrics Physician) - 77.3/100 vs national avg 83.1
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).
Angela Chen, MD appears in the CMS NPPES registry as an Obstetrics Physician provider holding MD credentials at 200 MEDICAL PLAZA, Los Angeles, CA, 90095, with a listed phone of (310) 794-8282. NPI 1710914262 was issued on 06/27/2006.
Medicare Part D records for calendar year 2023 show 87 prescription claims written by this provider, covering 30 Medicare beneficiaries and totaling roughly $8K in drug spend, split 26% brand-name and 74% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 77.3/100 for the 2023 performance year (Quality 84.6, Cost 39.9), compared with the national average of 83.1.
Obstetrics Physician is a narrow specialty nationwide, with 1,396 enrolled providers across 54 states and an average of 319 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
Provider Details
| NPI | 1710914262 |
|---|---|
| Specialty | Obstetrics Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 06/27/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
77.3459
Final Score
Avg: 83.1
84.55
Quality
39.9363
Cost
100
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Angela Chen, 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.
The Regents OF The University OF California
Los Angeles, 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 Angela Chen, MD. To verify Angela Chen, 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.
Brand vs generic prescribing mix · Above average
Angela Chen, MD - brand share 26.0%
Obstetrics Physician average
26% brand-name claims vs 74% generic, on 87 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.
87
Total Claims
$8K
Total Drug Cost
30
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 145
- Total Day Supply
- 3,735
- Brand vs Generic
- 26% brand / 74% generic
- Brand Drug Cost
- $3K
- Generic Drug Cost
- $4K
Patient Demographics
- Average Patient Age
- 66.4 years
- Avg HCC Risk Score
- 1.29
- 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 |
|---|---|
| Estradiol | 18 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Obstetrics Physician Overview
How Angela Chen, MD fits within the Obstetrics Physician landscape nationally.
1,396
Obstetrics Physician Providers in US
54
States with Obstetrics Physician
319
Avg Claims per Provider
Angela Chen, MD's 87 claims are below the specialty average of 319.
Nearby Obstetrics Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Chen.
Dr. Nayeema Ahmed
M.D.
Riverside, CA
Dr. Rimsha Ahmed
M.D.
Los Angeles, CA
Dr. Mohsin Ali
M.D.
Cerritos, CA
Dr. Lysistrati Alimonos
D.O.
San Diego, CA
Dr. Yanett Anaya
MD
San Francisco, CA
Compare Obstetrics Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the California medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Obstetrics Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Angela Chen, MD's specialty? ▼
Angela Chen, MD specializes in Obstetrics Physician and practices in Los Angeles, California. Credentials: MD.
How much does Angela Chen, MD prescribe under Medicare Part D? ▼
In 2023, Angela Chen, MD wrote 87 Medicare Part D claims totaling $8K in drug costs for 30 beneficiaries.
What is Angela Chen, MD's Medicare quality score? ▼
Angela Chen, MD has a CMS MIPS Final Score of 77.3/100 (Quality: 84.6, Cost: 39.9). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Angela Chen, MD located? ▼
Angela Chen, MD is located at 200 MEDICAL PLAZA, Los Angeles, CA, 90095. Phone: (310) 794-8282.
What is Angela Chen, MD's NPI number? ▼
Angela Chen, MD's National Provider Identifier (NPI) is 1710914262, issued on 06/27/2006.
Does Angela Chen, MD prescribe more brand-name or generic drugs? ▼
Angela Chen, MD's prescribing is 26% brand-name and 74% generic drugs by claim count, with $3K in brand drug costs.
How many Obstetrics Physician providers are there in the US? ▼
There are 1,396 Obstetrics Physician providers across 54 states in the US. The average Obstetrics Physician provider writes 319 Medicare Part D claims per year.
What drugs does Angela Chen, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Angela Chen, MD's most frequently prescribed drugs include Estradiol. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Angela Chen, MD accept Medicare? ▼
Angela Chen, MD appears in CMS Medicare data with 87 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 Angela Chen, MD's credentials? ▼
Angela Chen, MD's NPI is 1710914262 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
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 PlainDoctor editorial team.
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.