Thomas C. Orsini, M.D.
Diagnostic Radiology Physician · San Diego, CA
Thomas C. Orsini, M.D. is a diagnostic radiology physician with a practice address in San Diego, California, and NPI 1568415727, issued on May 18, 2006. Check the license (California G65463, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Thomas C. Orsini
- Credential
- M.D.
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License numbers
- G65463 CA
MD26550 ME
Self-reported in NPPES; status is on the state search - Practice location
- 501 Washington St, San Diego, CA 92103
- Phone
- (619) 819-6501
- Enumerated
- May 18, 2006
- Record last updated
- Mar 5, 2025
- Medicaid ID
- 00G654630 CA
- Medicare enrollment
- Enrolled (PECOS I20040831001023); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 4,500 in California → Look up another NPI →
Also registered at 501 Washington St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Daniel Bressler, M.D.Internal Medicine Physician1700887726
- Denise Brownlee, MDPediatrics Physician1073547477
Verify Thomas C. Orsini in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G65463Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
10 hospitals and group practices
- Houlton Regional HospitalHoulton, ME · Critical Access Hospitals3 of 5 stars
- Southeast Alaska Regional Health ConsortiumSitka, AK · Critical Access Hospitals3 of 5 stars
- Geisinger ClinicDana Point, CA
- Memphis Physicians Radiological Group PCDana Point, CA
- Radiology Associates OF Burlington County P ADana Point, CA
- RemloDana Point, CA
- South Jersey Radiology Associates P ADana Point, CA
- St Paul Place Specialists, Inc.Dana Point, CA
- Virtual Radiologic Professionals OF California PADana Point, CA
- Warren General HospitalDana Point, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Thomas C. Orsini among 4,500 diagnostic radiology physician records in California
Thomas C. Orsini, 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 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 52% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated1984 · median 2004 among the 3,130 with a school on file
- Record last updated2025 · 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
- Lejla Aganovic, MDSan Diego, CA 921031003807652
- Gilbert Boswell, M.D.San Diego, CA 921031730150392
- Kira Chow, M.DSan Diego, CA 921031538118310
- Christine Chung, MDSan Diego, CA 921031528033560
- Rosalind Dietrich, MDSan Diego, CA 921031710944426
- David Einstein, MDSan Diego, CA 921031568426211
- Jay Federhart, MDSan Diego, CA 921031568422558
- Tudor Hughes, M.D.San Diego, CA 921031932187127
Common questions
What is Thomas C. Orsini, M.D.'s NPI number?
Thomas C. Orsini, M.D.'s National Provider Identifier (NPI) is 1568415727, issued on May 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Thomas C. Orsini, M.D. located?
The NPPES record lists a practice address at 501 Washington St, San Diego, CA, 92103. Phone: (619) 819-6501. Providers update this record themselves, so call before visiting.
How can I verify Thomas C. Orsini, M.D.'s license?
NPPES lists California license number G65463, 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.