Gordon A. Ryan, MD
Hospitalist Physician · San Luis Obispo, CA
Gordon A. Ryan, MD is a hospitalist physician with a practice address in San Luis Obispo, California, and NPI 1396824546, issued on Nov 6, 2006. Check the license (California C145619, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Gordon A. Ryan
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- C145619 CA
0101034688 VA
Self-reported in NPPES; status is on the state search - Practice location
- 1010 Murray Ave, San Luis Obispo, CA 93405
- Phone
- (805) 439-2998
- Enumerated
- Nov 6, 2006
- Record last updated
- Jul 19, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (805) 439-2997
- Medicaid ID
- 005878900 VA
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
Also registered at 1010 Murray Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sean AndrewsEmergency Medicine Physician1154736734
- Glen Aquino, MDAnesthesiology Physician1396985842
- Matthew Barry, DOAnesthesiology Physician1134268881
- John Bass, NP, CNS, PHDCritical Care Medicine Nurse Practitioner1801235320
- Hayley BinghamOccupational Therapist1609543263
- Joshua Bridge, DOEmergency Medicine Physician1932849569
Verify Gordon A. Ryan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C145619Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $27.79
1 payment: food and beverage; the largest payer was Alnylam Pharmaceuticals Inc. The 7,324 providers of this specialty with any payment received $494.84 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Gordon A. Ryan among 3,099 hospitalist physician records in California
Gordon A. Ryan, 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 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 73% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileNo · 81% of these records are
- 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 Luis Obispo → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Ann Bollay, MDSan Luis Obispo, CA 934051487610333
- Ashlynn Gordon, D.O.San Luis Obispo, CA 934051255779641
- Olga Grigorieva Olson, M.D. PH.D.San Luis Obispo, CA 934051780046243
- Sarfaraz Mansuri, MDSan Luis Obispo, CA 934051508178088
- Cindy Su, M.D.San Luis Obispo, CA 934051285088211
- Christopher Walheim, MDSan Luis Obispo, CA 934051326572116
- Julie Gelman, MDSan Luis Obispo, CA 934011962461046
- Justin Grammy, DOSan Luis Obispo, CA 934011003254483
Common questions
What is Gordon A. Ryan, MD's NPI number?
Gordon A. Ryan, MD's National Provider Identifier (NPI) is 1396824546, issued on Nov 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gordon A. Ryan, MD located?
The NPPES record lists a practice address at 1010 Murray Ave, San Luis Obispo, CA, 93405. Phone: (805) 439-2998. Providers update this record themselves, so call before visiting.
How can I verify Gordon A. Ryan, MD's license?
NPPES lists California license number C145619, 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. 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.