Thomas Joseph Watson, M.D.
Internal Medicine Physician · Santa Rosa, CA
Thomas Joseph Watson, M.D. is an internal medicine physician with a practice address in Santa Rosa, California, and NPI 1720349061, issued on Jun 4, 2012. Check the license (California C198751, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Thomas Joseph Watson
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- C198751 CA
Self-reported in NPPES; status is on the state search - Practice location
- 30 Mark West Springs RD, Santa Rosa, CA 95403
- Phone
- (707) 576-4000
- Enumerated
- Jun 4, 2012
- Record last updated
- Jan 22, 2025
- Medicare enrollment
- Enrolled (PECOS I20250129000571); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 30 Mark West Springs RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Thomas Joseph Watson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C198751Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average internal medicine physician in 2024
402 Medicare Part D claims for 163 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 27 claims were for opioids.
Most prescribed
- Atorvastatin Calcium24 claims
- Furosemide18 claims
- Carvedilol17 claims
- Eliquis16 claims
- Spironolactone15 claims
- Clopidogrel14 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 practice group's MIPS final score for 2023 (Medicare payment program): 76.5 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).
Industry payments in 2024: $59.15
3 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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.
Bills Medicare through one group practice
- Providence Medical FoundationSanta Rosa, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Thomas Joseph Watson among 17,696 internal medicine physician records in California
Thomas Joseph Watson, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 68% of them.
- NPI issued2012 · 68% of these records are older, 29% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2012 · median 2004 among the 11,065 with a school on file
- Record last updated2025 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
98 internal medicine physician records list a practice address in Santa Rosa
They are 98 of the 6,884 NPPES records with a practice address in Santa Rosa, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Santa Rosa → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Harry Carr, M.D.Santa Rosa, CA 954031770694044
- William Carroll, M.D.Santa Rosa, CA 954031922005891
- Lawrence Cooper, M.D.Santa Rosa, CA 954031801895602
- Zhen Zhou Feng, M.D.Santa Rosa, CA 954031871600031
- Timothy Gieseke, M.D.Santa Rosa, CA 954031992703706
- Archana Goyal, M.D.Santa Rosa, CA 954031811084817
- Parul Kohli, M.D.Santa Rosa, CA 954031023098738
- Maya Land, MDSanta Rosa, CA 954031619958154
Common questions
What is Thomas Joseph Watson, M.D.'s NPI number?
Thomas Joseph Watson, M.D.'s National Provider Identifier (NPI) is 1720349061, issued on Jun 4, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Thomas Joseph Watson, M.D. located?
The NPPES record lists a practice address at 30 Mark West Springs RD, Santa Rosa, CA, 95403. Phone: (707) 576-4000. Providers update this record themselves, so call before visiting.
How can I verify Thomas Joseph Watson, M.D.'s license?
NPPES lists California license number C198751, 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 Joseph Watson, M.D. prescribe under Medicare Part D?
In 2024, Thomas Joseph Watson, M.D. had 402 Medicare Part D claims for 163 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Thomas Joseph Watson, M.D.'s MIPS final score?
The 2023 MIPS final score is 76.5 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.