NPPES file of Aug 9, 2026

Bertha H. Chen, MD

Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician · Stanford, CA

Bertha H. Chen, MD is a urogynecology and reconstructive pelvic surgery (obstetrics & gynecology) physician with a practice address in Stanford, California, and NPI 1023151115, issued on Feb 15, 2007. Check the license (California G76784, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1023151115
Name
Bertha H. Chen
Credential
MD
Primary taxonomy
Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician 207VF0040X
License number
G76784 CA
Self-reported in NPPES; status is on the state search
Practice location
300 Pasteur Dr, Stanford, CA 94305
Phone
(650) 498-5391
Enumerated
Feb 15, 2007
Record last updated
Apr 19, 2024
Medicare enrollment
Enrolled (PECOS I20070710000485); accepts Medicare assignment
Medical or professional school
Stanford University School Of Medicine, 1991
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 300 Pasteur Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Cooper Aakhus, MDEmergency Medicine Physician1194351007
  2. Oliver Aalami, M.D.Vascular Surgery Physician1225229024
  3. Alistair Aaronson, MDInternal Medicine Physician1457628760
  4. Sumaira Aasi, MDMOHS-Micrographic Surgery Physician1780675181
  5. Fahim Abbasi, M.D.Internal Medicine Physician1841484037
  6. Mohamad Abbass, MDNeurological Surgery Physician1679492151

Verify Bertha H. Chen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G76784
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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80% fewer Medicare Part D claims than the average urogynecology and reconstructive pelvic surgery (obstetrics & gynecology) physician in 2024

147 Medicare Part D claims for 53 beneficiaries, against an average of 732 among the 998 providers of this specialty who prescribed in Part D. Brand-name drugs were 29% of claims.

  1. Bertha Chen147
  2. Specialty average732

Most prescribed

  1. Estradiol53 claims
  2. Gemtesa24 claims
  3. Cephalexin18 claims
  4. Oxybutynin Chloride Er17 claims
  5. Myrbetriq12 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 76.5 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score74.3
  2. Costout of 100 · 30%44.0
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $1,669.91

13 payments; by number, the most common kind was travel and lodging; the largest payer was Axonics, Inc. The 864 providers of this specialty with any payment received $2,558.52 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Bertha Chen$1,669.91
  2. Specialty average$2,558.52

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

One hospital affiliation

  1. Stanford Health CareStanford, CA · Acute Care Hospitals5 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Bertha H. Chen among 108 urogynecology and reconstructive pelvic surgery (obstetrics & gynecology) physician records in California

Bertha H. Chen, MD is one of 108 urogynecology and reconstructive pelvic surgery (obstetrics & gynecology) physician records with a practice address in California. 96% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 33% of them.

  • NPI issued2007 · 33% of these records are older, 53% newer
  • In a Medicare fileYes · 96% of these records are
  • In the CMS Doctors and Clinicians fileYes · 82% of these records are
  • Graduated1991 · median 2004 among the 89 with a school on file
  • Record last updated2024 · 36% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VF0040X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician providers in California

There are 108 urogynecology and reconstructive pelvic surgery (obstetrics & gynecology) physician records in California.

The 8 urogynecology and reconstructive pelvic surgery (obstetrics & gynecology) physician records with the nearest ZIP codes

  1. Kavita Mishra, MDStanford, CA 943051033347315
  2. Lisa Rogo-Gupta, MDStanford, CA 943051962660167
  3. Eric Sokol, MDStanford, CA 943051508911538
  4. Leslee Subak, MDStanford, CA 943051578508412
  5. Traci Ito, M.D.San Francisco, CA 941581154687150
  6. Abigail Shatkin-Margolis, M.D.San Francisco, CA 941581891080784
  7. Heidi Wittenberg, MDSan Francisco, CA 941331588652143
  8. Sharon Knight, M.D.San Francisco, CA 941181538195367

Common questions

What is Bertha H. Chen, MD's NPI number?

Bertha H. Chen, MD's National Provider Identifier (NPI) is 1023151115, issued on Feb 15, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Bertha H. Chen, MD located?

The NPPES record lists a practice address at 300 Pasteur Dr, Stanford, CA, 94305. Phone: (650) 498-5391. Providers update this record themselves, so call before visiting.

How can I verify Bertha H. Chen, MD's license?

NPPES lists California license number G76784, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Bertha H. Chen, MD prescribe under Medicare Part D?

In 2024, Bertha H. Chen, MD had 147 Medicare Part D claims for 53 beneficiaries; the average among urogynecology and reconstructive pelvic surgery (obstetrics & gynecology) physician prescribers was 732. Part D covers Medicare prescriptions only.

What is Bertha H. Chen, MD's MIPS final score?

The 2023 MIPS final score is 76.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.