Timothy B. Riley, M.D.
Obstetrics & Gynecology Physician · San Diego, CA
Timothy B. Riley, M.D. is an obstetrics & gynecology physician with a practice address in San Diego, California, and NPI 1124149653, issued on Apr 2, 2007. Check the license (California G33037, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Timothy B. Riley
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- G33037 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4045 3RD Ave, San Diego, CA 92103
- Phone
- (619) 297-4901
- Enumerated
- Apr 2, 2007
- Record last updated
- Nov 9, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (619) 688-5993
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Verify Timothy B. Riley in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G33037Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
11 Medicare Part D claims, against an average of 165 among the 28,733 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.
Timothy B. Riley among 5,088 obstetrics & gynecology physician records in California
Timothy B. Riley, M.D. is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 48% of them.
- NPI issued2007 · 48% of these records are older, 38% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 53% of these records are
- Record last updated2012 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in California
There are 5,088 obstetrics & gynecology physician records in California.
All 5,088 in California → Every provider in San Diego → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Bhoomi Brahmbhatt, M.D.San Diego, CA 921031437126182
- Mickey Coffler, MDSan Diego, CA 921031205870482
- Steven Drosman, MDSan Diego, CA 921031811092638
- Anupam Garg, MDSan Diego, CA 921031013944636
- Stephen Hebert, MDSan Diego, CA 921031730127069
- Andrew Hull, M.D.San Diego, CA 921031902862121
- Jessica Kingston, M.D.San Diego, CA 921031538106372
- Leland Lapp, MDSan Diego, CA 921031902830987
Common questions
What is Timothy B. Riley, M.D.'s NPI number?
Timothy B. Riley, M.D.'s National Provider Identifier (NPI) is 1124149653, issued on Apr 2, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Timothy B. Riley, M.D. located?
The NPPES record lists a practice address at 4045 3RD Ave, San Diego, CA, 92103. Phone: (619) 297-4901. Providers update this record themselves, so call before visiting.
How can I verify Timothy B. Riley, M.D.'s license?
NPPES lists California license number G33037, 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 Timothy B. Riley, M.D. prescribe under Medicare Part D?
In 2024, Timothy B. Riley, M.D. had 11 Medicare Part D claims; the average among obstetrics & gynecology physician prescribers was 165. 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.