Erin L. Yao-Cohen, MD
Hospitalist Physician · San Francisco, CA
Erin L. Yao-Cohen, MD is a hospitalist physician with a practice address in San Francisco, California, and NPI 1245643311, issued on Jun 6, 2014. Check the license (California A147514, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Erin L. Yao-Cohen
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- A147514 CA
L-259309 MA
Self-reported in NPPES; status is on the state search - Practice location
- 533 Parnassus Ave, San Francisco, CA 94143
- Phone
- (415) 476-7931
- Enumerated
- Jun 6, 2014
- Record last updated
- Feb 24, 2022
- Fax
- (415) 476-4818
- Medicare enrollment
- Enrolled (PECOS I20171103002472); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
Also registered at 533 Parnassus Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Julia CarnevaleHematology & Oncology Physician1518257625
- Nicolas CevallosStudent in an Organized Health Care Education/Training Program1801595699
- Victoria Cox, M.S.Genetic Counselor (M.S.)1700846532
- David DarevskyStudent in an Organized Health Care Education/Training Program1871351171
Verify Erin L. Yao-Cohen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A147514Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
76% fewer Medicare Part D claims than the average hospitalist physician in 2024
125 Medicare Part D claims for 43 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of 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.
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).
Erin L. Yao-Cohen among 3,099 hospitalist physician records in California
Erin L. Yao-Cohen, MD 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 2014, is newer than 61% of them.
- NPI issued2014 · 61% of these records are older, 34% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated2014 · median 2010 among the 2,505 with a school on file
- Record last updated2022 · 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 Erin L. Yao-Cohen, MD's NPI number?
Erin L. Yao-Cohen, MD's National Provider Identifier (NPI) is 1245643311, issued on Jun 6, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Erin L. Yao-Cohen, MD located?
The NPPES record lists a practice address at 533 Parnassus Ave, San Francisco, CA, 94143. Phone: (415) 476-7931. Providers update this record themselves, so call before visiting.
How can I verify Erin L. Yao-Cohen, MD's license?
NPPES lists California license number A147514, 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 Erin L. Yao-Cohen, MD prescribe under Medicare Part D?
In 2024, Erin L. Yao-Cohen, MD had 125 Medicare Part D claims for 43 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.