Ryan Christopher Martin, MD
Emergency Medicine Physician · San Francisco, CA
Ryan Christopher Martin, MD is an emergency medicine physician with a practice address in San Francisco, California, and NPI 1659734580, issued on Mar 29, 2016. Check the license (California A154538, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ryan Christopher Martin
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- A154538 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1001 Potrero Ave, San Francisco, CA 94110
- Phone
- (628) 206-8000
- Enumerated
- Mar 29, 2016
- Record last updated
- Feb 11, 2022
- Medicare enrollment
- Enrolled (PECOS I20191025001321); accepts Medicare assignment
- Medical or professional school
- Baylor College Of Medicine, 2016
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 1001 Potrero Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elizabeth Abbs, M.D.Internal Medicine Physician1295269983
- Atokena AbeStudent in an Organized Health Care Education/Training Program1043130149
- Mary Ann AbilleRegistered Nurse1699155804
- Nasrin Aboudamous, FNPFamily Nurse Practitioner1699579912
- Elizabeth AdvientoRegistered Nurse1124968987
- Rocio Agraz-Lara, RN, PHNRegistered Nurse1003075995
Verify Ryan Christopher Martin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A154538Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
73% more Medicare Part D claims than the average emergency medicine physician in 2024
391 Medicare Part D claims for 283 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 57 claims were for opioids.
Most prescribed
- Oxycodone Hcl55 claims
- Ondansetron Odt34 claims
- Doxycycline Hyclate28 claims
- Prednisone18 claims
- Meclizine Hcl17 claims
- Cephalexin14 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
- Mills-Peninsula Emergency Medical Associates, IncBurlingame, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ryan Christopher Martin among 7,751 emergency medicine physician records in California
Ryan Christopher Martin, 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. Its NPI, issued in 2016, is newer than 75% of them.
- NPI issued2016 · 75% of these records are older, 22% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2016 · median 2011 among the 4,560 with a school on file
- Record last updated2022 · 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.
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
- John Brown, MDSan Francisco, CA 941101053355941
- Ritik Chandra, MDSan Francisco, CA 941101700838737
- Rachel Chin, MDSan Francisco, CA 941101477597375
- Christopher Colwell, MDSan Francisco, CA 941101629092788
- Alan Gelb, MDSan Francisco, CA 941101497796213
- Eric Isaacs, MDSan Francisco, CA 941101356385231
- Todd Kessinger, MDSan Francisco, CA 941101255374732
- Judith Klein, MDSan Francisco, CA 941101235171638
Common questions
What is Ryan Christopher Martin, MD's NPI number?
Ryan Christopher Martin, MD's National Provider Identifier (NPI) is 1659734580, issued on Mar 29, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Ryan Christopher Martin, MD located?
The NPPES record lists a practice address at 1001 Potrero Ave, San Francisco, CA, 94110. Phone: (628) 206-8000. Providers update this record themselves, so call before visiting.
How can I verify Ryan Christopher Martin, MD's license?
NPPES lists California license number A154538, 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 Ryan Christopher Martin, MD prescribe under Medicare Part D?
In 2024, Ryan Christopher Martin, MD had 391 Medicare Part D claims for 283 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.