Thomas Alan Watters, M.D.
Nuclear Cardiology Physician · San Mateo, CA
Thomas Alan Watters, M.D. is a nuclear cardiology physician with a practice address in San Mateo, California, and NPI 1508816596, issued on May 11, 2006. Check the license (California G50566, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Thomas Alan Watters
- Credential
- M.D.
- Primary taxonomy
- Nuclear Cardiology Physician 207UN0901X
- License numbers
- G50566 CA
MD13617 HI
Self-reported in NPPES; status is on the state search - Practice location
- 101 S San Mateo Dr, San Mateo, CA 94401
- Phone
- (650) 218-5758
- Enumerated
- May 11, 2006
- Record last updated
- Jan 22, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (650) 375-8398
- Entity
- Type 1 · individual
8 nearest nuclear cardiology physician records → All 10 in California → Look up another NPI →
Also registered at 101 S San Mateo Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Marieta Angtuaco, M.D.Specialist1548324536
- Jack Bernstein, MDInternal Medicine Physician1457301384
- Catrina Blake, FNPNurse Practitioner1205472115
- Jonathan Briskin, M.D.Cardiovascular Disease Physician1417032376
- Doris Burton, MDDiagnostic Radiology Physician1285837906
- Mary Dobbins, M.D.Internal Medicine Physician1407837693
Verify Thomas Alan Watters in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G50566Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average nuclear cardiology physician in 2024
252 Medicare Part D claims for 123 beneficiaries, against an average of 3,932 among the 112 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium31 claims
- Amlodipine Besylate17 claims
- Repatha Sureclick15 claims
- Metformin Hcl13 claims
- Metoprolol Succinate11 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.
The MIPS final score for 2023 (Medicare payment program): 30 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Thomas Alan Watters among 10 nuclear cardiology physician records in California
Thomas Alan Watters, M.D. is one of 10 nuclear cardiology 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 10% of them.
- NPI issued2006 · 10% of these records are older, 20% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileNo · 70% of these records are
- Record last updated2009 · 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 207UN0901X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nuclear Cardiology Physician providers in California
There are 10 nuclear cardiology physician records in California.
All 10 in California → Every provider in San Mateo → Nuclear Cardiology Physician nationwide →
The 8 nuclear cardiology physician records with the nearest ZIP codes
- Christopher Oh, M.D.Salinas, CA 939011942208889
- Teresa Daniele, M.D.Fresno, CA 937011497791693
- Ankit Rathod, MDFresno, CA 937011073751962
- Kusai Aziz, M.D.Visalia, CA 932771265590863
- Arjun Sharma, MDSacramento, CA 958191316019490
- Absalom Hepner, M.D.Mission Viejo, CA 926911205880994
- Victor Gabrielian, M.D.Arcadia, CA 910071811189822
- Howard Lewin, M.D.Los Angeles, CA 900641598780116
Common questions
What is Thomas Alan Watters, M.D.'s NPI number?
Thomas Alan Watters, M.D.'s National Provider Identifier (NPI) is 1508816596, issued on May 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Thomas Alan Watters, M.D. located?
The NPPES record lists a practice address at 101 S San Mateo Dr, San Mateo, CA, 94401. Phone: (650) 218-5758. Providers update this record themselves, so call before visiting.
How can I verify Thomas Alan Watters, M.D.'s license?
NPPES lists California license number G50566, 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 Thomas Alan Watters, M.D. prescribe under Medicare Part D?
In 2024, Thomas Alan Watters, M.D. had 252 Medicare Part D claims for 123 beneficiaries; the average among nuclear cardiology physician prescribers was 3,932. Part D covers Medicare prescriptions only.
What is Thomas Alan Watters, M.D.'s MIPS final score?
The 2023 MIPS final score is 30 of 100. 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.