NPPES file of Aug 9, 2026

John B. Thomson, M.D.

Family Medicine Physician · Woodland, CA

John B. Thomson, M.D. is a family medicine physician with a practice address in Woodland, California, and NPI 1528167293, issued on Sep 21, 2006. Check the license (California A69960, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1528167293
Name
John B. Thomson
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A69960 CA
Self-reported in NPPES; status is on the state search
Practice location
475 Pioneer Ave, Woodland, CA 95776
Phone
(530) 406-5600
Enumerated
Sep 21, 2006
Record last updated
Jul 9, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(530) 406-5626
Medicaid ID
00A699600 CA
Medicare enrollment
Enrolled (PECOS I20081209000089); accepts Medicare assignment
Medical or professional school
University Of California, Irvine, California College Of Medicine, 1998
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 475 Pioneer Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Andreas Barth, P.T.Physical Therapist1285646877
  2. Carmel Benbow, P.T.Physical Therapist1477565000
  3. Julie Benzing, P.T.Physical Therapist1487778007
  4. Manuel Diaz, D.O.Family Medicine Physician1801994082
  5. Claudia Galli, M.D.Family Medicine Physician1437340973
  6. Jana Hay, D.O.Family Medicine Physician1295091130

Verify John B. Thomson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A69960
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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49% more Medicare Part D claims than the average family medicine physician in 2024

5,276 Medicare Part D claims for 353 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims. 240 claims were for opioids.

  1. John Thomson5,276
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium328 claims
  2. Ozempic289 claims
  3. Lisinopril259 claims
  4. Hydrocodone-Acetaminophen223 claims
  5. Jardiance209 claims
  6. Amlodipine Besylate190 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.

Industry payments in 2024: $6,047.82

8 payments; by number, the most common kind was compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program; the largest payer was Novo Nordisk Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John Thomson$6,047.82
  2. Specialty average$902.55

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

  1. Sutter Valley Medical FoundationFairfield, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

John B. Thomson among 17,133 family medicine physician records in California

John B. Thomson, M.D. is one of 17,133 family medicine physician records with a practice address in California. 81% 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 6% of them.

  • NPI issued2006 · 6% of these records are older, 59% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated1998 · median 2005 among the 10,652 with a school on file
  • Record last updated2015 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

45 family medicine physician records list a practice address in Woodland

They are 45 of the 1,272 NPPES records with a practice address in Woodland, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Manuel Diaz, D.O.Woodland, CA 957761801994082
  2. Lucy Douglass, MDWoodland, CA 957761912940594
  3. Claudia Galli, M.D.Woodland, CA 957761437340973
  4. Marcia Gollober, M.D.Woodland, CA 957761871511139
  5. Randall Leefeldt, M.D.Woodland, CA 957761346349867
  6. Antonio Meraz, MDWoodland, CA 957761831251768
  7. Mary Monroe-Rodman, MDWoodland, CA 957761477576148
  8. Patricia Moore-Pickett, MDWoodland, CA 957761659476786

Common questions

What is John B. Thomson, M.D.'s NPI number?

John B. Thomson, M.D.'s National Provider Identifier (NPI) is 1528167293, issued on Sep 21, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John B. Thomson, M.D. located?

The NPPES record lists a practice address at 475 Pioneer Ave, Woodland, CA, 95776. Phone: (530) 406-5600. Providers update this record themselves, so call before visiting.

How can I verify John B. Thomson, M.D.'s license?

NPPES lists California license number A69960, 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 John B. Thomson, M.D. prescribe under Medicare Part D?

In 2024, John B. Thomson, M.D. had 5,276 Medicare Part D claims for 353 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.