NPPES file of Aug 9, 2026

Jocelyn Susan Chapman

Obstetrics & Gynecology Physician · San Francisco, CA

Jocelyn Susan Chapman is an obstetrics & gynecology physician with a practice address in San Francisco, California, and NPI 1770810590, issued on Nov 16, 2009. Check the license (California A110295, 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
1770810590
Name
Jocelyn Susan Chapman
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
A110295 CA
Self-reported in NPPES; status is on the state search
Practice location
1825 4TH St, San Francisco, CA 94143
Phone
(415) 846-2030
Enumerated
Nov 16, 2009
Record last updated
Mar 6, 2019 (not updated in 7 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20150903002047); accepts Medicare assignment
Medical or professional school
Boston University School Of Medicine, 2008
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 1825 4TH St

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

  1. Palash Aiyer, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1649832213
  2. Sarah AlsammanStudent in an Organized Health Care Education/Training Program1407650641
  3. Afsaneh Amouzegar, MDInternal Medicine Physician1609432038
  4. Yanett Anaya, MDReproductive Endocrinology Physician1215299102
  5. Onyemaechi Anoruo, MD, MPH, MSObstetrics & Gynecology Physician1679159511
  6. Cynthia Armour, NPFamily Nurse Practitioner1811023435

Verify Jocelyn Susan Chapman in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A110295
    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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93% more Medicare Part D claims than the average obstetrics & gynecology physician in 2024

318 Medicare Part D claims for 91 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 25% of claims. 37 claims were for opioids.

  1. Jocelyn Chapman318
  2. Specialty average165

Most prescribed

  1. Ibuprofen57 claims
  2. Lynparza48 claims
  3. Oxycodone Hcl34 claims
  4. Ondansetron Hcl31 claims
  5. Metronidazole22 claims
  6. Gabapentin20 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): 74.5 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. Qualitynot scored (reweighted)
  2. Costout of 100 · 30%46.7
  3. Promoting interoperabilityout of 100 · 25%76.0
  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: $55.71

1 payment: food and beverage; the largest payer was Ethicon US, LLC. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Jocelyn Chapman$55.71
  2. Specialty average$1,030.61

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

Bills Medicare through 3 group practices

  1. Ucsf Medical Group Business ServicesSan Francisco, CA
  2. University OF California San FranciscoSan Francisco, CA
  3. University OF California Sfgh Medical GroupSan Francisco, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Jocelyn Susan Chapman among 5,088 obstetrics & gynecology physician records in California

Jocelyn Susan Chapman is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 66% of them.

  • NPI issued2009 · 66% of these records are older, 30% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated2008 · median 2004 among the 2,700 with a school on file
  • Record last updated2019 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in California

There are 5,088 obstetrics & gynecology physician records in California.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Sonia Badheka, D.O.San Francisco, CA 941431013207547
  2. Elizabeth Blumenthal, MDSan Francisco, CA 941431164759916
  3. Alissa Erogbogbo, MDSan Francisco, CA 941431629234554
  4. Erica Johnstone, M.D.San Francisco, CA 941431487773263
  5. Karen McCune, MDSan Francisco, CA 941431326197633
  6. Jennifer McNallySan Francisco, CA 941431699054718
  7. Amy Murtha, M.D.San Francisco, CA 941431013066034
  8. Patricia Robertson, M.D.San Francisco, CA 941431053352302

Common questions

What is Jocelyn Susan Chapman's NPI number?

Jocelyn Susan Chapman's National Provider Identifier (NPI) is 1770810590, issued on Nov 16, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Jocelyn Susan Chapman located?

The NPPES record lists a practice address at 1825 4TH St, San Francisco, CA, 94143. Phone: (415) 846-2030. Providers update this record themselves, so call before visiting.

How can I verify Jocelyn Susan Chapman's license?

NPPES lists California license number A110295, 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 Jocelyn Susan Chapman prescribe under Medicare Part D?

In 2024, Jocelyn Susan Chapman had 318 Medicare Part D claims for 91 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.

What is Jocelyn Susan Chapman's MIPS final score?

The 2023 MIPS final score is 74.5 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.