Anne Ritchie
Hospitalist Physician · San Francisco, CA
Anne Ritchie is a hospitalist physician with a practice address in San Francisco, California, and NPI 1477948263, issued on Mar 30, 2015. Check the license (California A147689, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Anne Ritchie
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- A147689 CA
Self-reported in NPPES; status is on the state search - Practice location
- 505 Parnassus Ave, San Francisco, CA 94143
- Phone
- (415) 476-5389
- Enumerated
- Mar 30, 2015
- Record last updated
- Aug 22, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20180926001823); accepts Medicare assignment
- Medical or professional school
- University Of California, San Francisco School Of Medicine, 2015
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
Also registered at 505 Parnassus Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alexander Aabedi, MDStudent in an Organized Health Care Education/Training Program1245971480
- Kathryn Aaronson, RN, CPNPPediatric Nurse Practitioner1992030951
- Sharon AbadaStudent in an Organized Health Care Education/Training Program1003492844
- Abul Abbas, MBBSAnatomic Pathology Physician1881652964
- Jesse Abelson, MDInternal Medicine Physician1083843817
- Rhonald AbitonaAcute Care Nurse Practitioner1164993473
Verify Anne Ritchie in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A147689Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average hospitalist physician in 2024
27 Medicare Part D claims for 12 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D.
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.
Bills Medicare through one group practice
- Regents OF The University OF CaliforniaSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Anne Ritchie among 3,099 hospitalist physician records in California
Anne Ritchie is one of 3,099 hospitalist physician records with a practice address in California. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 66% of them.
- NPI issued2015 · 66% of these records are older, 30% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated2015 · median 2010 among the 2,505 with a school on file
- Record last updated2018 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in California
There are 3,099 hospitalist physician records in California.
All 3,099 in California → Every provider in San Francisco → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Seth Blumberg, MD PHDSan Francisco, CA 941431255595443
- Robertino Garcia Cortes, MDSan Francisco, CA 941431770872590
- Robin Goldman, MD, MPHSan Francisco, CA 941431033439906
- Win Han, MDSan Francisco, CA 941431619110384
- Ari HoffmanSan Francisco, CA 941431346566221
- Alison Kuchta, M.D.San Francisco, CA 941431063704963
- Andrew Lai, M.D.San Francisco, CA 941431861666281
- Khoa Lam, M.D.San Francisco, CA 941431801114095
Common questions
What is Anne Ritchie's NPI number?
Anne Ritchie's National Provider Identifier (NPI) is 1477948263, issued on Mar 30, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Anne Ritchie located?
The NPPES record lists a practice address at 505 Parnassus Ave, San Francisco, CA, 94143. Phone: (415) 476-5389. Providers update this record themselves, so call before visiting.
How can I verify Anne Ritchie's license?
NPPES lists California license number A147689, 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 Anne Ritchie prescribe under Medicare Part D?
In 2024, Anne Ritchie had 27 Medicare Part D claims for 12 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.
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.