Michael Shafer, MD
Emergency Medicine Physician · San Francisco, CA
Michael Shafer, MD is an emergency medicine physician with a practice address in San Francisco, California, and NPI 1417097312, issued on Feb 8, 2007. Check the license (California G37581, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Michael Shafer
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- G37581 CA
Self-reported in NPPES; status is on the state search - Practice location
- 845 Jackson St, San Francisco, CA 94133
- Phone
- (330) 493-4443
- Enumerated
- Feb 8, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 845 Jackson St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jack Bertman, M.D.Emergency Medicine Physician1891777967
- Michael Bogner, MDEmergency Medicine Physician1235279134
- Jingyan Chen, PHARMDPharmacist1255154472
- Irwin Chow, MDAnesthesiology Physician1184637530
- Ivan Cometa, M.D.Emergency Medicine Physician1437530706
- Roger Eng, MDDiagnostic Radiology Physician1871607291
Verify Michael Shafer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G37581Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Michael Shafer among 7,751 emergency medicine physician records in California
Michael Shafer, MD is one of 7,751 emergency medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2007, is newer than 40% of them.
- NPI issued2007 · 40% of these records are older, 50% newer
- In a Medicare fileNo · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2007 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in California
There are 7,751 emergency medicine physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 7,751 in California → Every provider in San Francisco → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Jack Bertman, M.D.San Francisco, CA 941331891777967
- Michael Bogner, MDSan Francisco, CA 941331235279134
- Ivan Cometa, M.D.San Francisco, CA 941331437530706
- Michael O'Connor, MDSan Francisco, CA 941331326188228
- David Rossi, M.D.San Francisco, CA 941331588614077
- Becky SchmitzSan Francisco, CA 941331699817973
- Mai Shimada, M.D.San Francisco, CA 941331316289523
- Joseph Woo, MDSan Francisco, CA 941331366584658
Common questions
What is Michael Shafer, MD's NPI number?
Michael Shafer, MD's National Provider Identifier (NPI) is 1417097312, issued on Feb 8, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Michael Shafer, MD located?
The NPPES record lists a practice address at 845 Jackson St, San Francisco, CA, 94133. Phone: (330) 493-4443. Providers update this record themselves, so call before visiting.
How can I verify Michael Shafer, MD's license?
NPPES lists California license number G37581, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.