Stephen Thomas, M.D.
Diagnostic Radiology Physician · San Diego, CA
Stephen Thomas, M.D. is a diagnostic radiology physician with a practice address in San Diego, California, and NPI 1922203496, issued on Jun 15, 2007. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Stephen Thomas
- Credential
- M.D.
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License number
- 036.118203 IL
Self-reported in NPPES; status is on the state search - Practice location
- 8933 Activity RD, San Diego, CA 92126
- Phone
- (858) 653-6130
- Enumerated
- Jun 15, 2007
- Record last updated
- Jul 22, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (858) 653-6125
- Medicare enrollment
- Enrolled (PECOS I20241108003565); accepts Medicare assignment
- Medical or professional school
- University Of Pittsburgh School Of Medicine, 2002
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 4,500 in California → Look up another NPI →
Also registered at 8933 Activity RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- James Anderson, PTPhysical Therapist1538627641
- Amanda Arnold, OTOccupational Therapist1861938797
- Bethani Bernaba, M.D.Family Medicine Physician1760628663
- Lindsay BurchSpeech-Language Pathologist1326456492
- Anthony Chang, MDDiagnostic Radiology Physician1306050406
- Shilpa Devanagondi, MDFamily Medicine Physician1609497221
Verify Stephen Thomas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 73.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- New York UniversityNew York, NY
- Sharp Rees-Stealy Medical Group IncSan Diego, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stephen Thomas among 4,500 diagnostic radiology physician records in California
Stephen Thomas, M.D. is one of 4,500 diagnostic radiology 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, 41% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2002 · median 2004 among the 3,130 with a school on file
- Record last updated2019 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Diagnostic Radiology Physician providers in California
There are 4,500 diagnostic radiology physician records in California.
All 4,500 in California → Every provider in San Diego → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- Anthony Chang, MDSan Diego, CA 921261306050406
- Eric Goodman, M.D.San Diego, CA 921261891704177
- Gene Heard, M.D.San Diego, CA 921261760595847
- Patrick Lee, M.D.San Diego, CA 921261891993705
- Jeffrey Lovin, MDSan Diego, CA 921271376535765
- Celine Melitz, MDSan Diego, CA 921271548478639
- Mona Silady, M.D.San Diego, CA 921271689807992
- Janet Amundson, M.D.San Diego, CA 921281285770388
Common questions
What is Stephen Thomas, M.D.'s NPI number?
Stephen Thomas, M.D.'s National Provider Identifier (NPI) is 1922203496, issued on Jun 15, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Stephen Thomas, M.D. located?
The NPPES record lists a practice address at 8933 Activity RD, San Diego, CA, 92126. Phone: (858) 653-6130. Providers update this record themselves, so call before visiting.
How can I verify Stephen Thomas, M.D.'s license?
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.
What is Stephen Thomas, M.D.'s MIPS final score?
The 2023 MIPS final score is 73.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.