NPPES file of Aug 9, 2026

Thomas Jacobs Yax, M.D.

Family Medicine Physician · Traverse City, MI

Thomas Jacobs Yax, M.D. is a family medicine physician with a practice address in Traverse City, Michigan, and NPI 1104078419, issued on Oct 17, 2008. Check the license (Michigan 4301092520, as entered in NPPES) on the Michigan Board of Medicine (LARA); 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
1104078419
Name
Thomas Jacobs Yax
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
4301092520 MI
Self-reported in NPPES; status is on the state search
Practice location
224 Circle Dr, Traverse City, MI 49684
Phone
(231) 932-4912
Enumerated
Oct 17, 2008
Record last updated
Feb 5, 2026
Fax
(231) 935-0613
Medicare enrollment
Enrolled (PECOS I20110708000432); accepts Medicare assignment
Medical or professional school
Michigan State University College Of Human Medicine, 2008
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 224 Circle Dr

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

  1. John Faichney, MDEndocrinology, Diabetes & Metabolism Physician1073544870
  2. Allison GoldsmithInternal Medicine Physician1023351731
  3. Joanna Heindl, DOFamily Medicine Physician1619105269
  4. William Howard, MDInternal Medicine Physician1588669725
  5. David Macdougall, MDInternal Medicine Physician1659376416
  6. Janet Messerschmidt, D. O.Internal Medicine Physician1477540391

Verify Thomas Jacobs Yax in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
    Search for license 4301092520
    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 Michigan 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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19% more Medicare Part D claims than the average family medicine physician in 2024

4,215 Medicare Part D claims for 331 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 115 claims were for opioids.

  1. Thomas Yax4,215
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium249 claims
  2. Losartan Potassium225 claims
  3. Amlodipine Besylate215 claims
  4. Rosuvastatin Calcium195 claims
  5. Lisinopril192 claims
  6. Omeprazole132 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: $73.32

3 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie 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. Thomas Yax$73.32
  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 3 group practices

  1. Grand Traverse Physician Services PCTraverse City, MI
  2. Great Lakes Therapy Housecalls PCTraverse City, MI
  3. Munson Medical GroupTraverse City, MI

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

Thomas Jacobs Yax among 6,013 family medicine physician records in Michigan

Thomas Jacobs Yax, M.D. is one of 6,013 family medicine physician records with a practice address in Michigan. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 52% of them.

  • NPI issued2008 · 52% of these records are older, 46% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated2008 · median 2008 among the 3,493 with a school on file
  • Record last updated2026 · 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 Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

106 family medicine physician records list a practice address in Traverse City

They are 106 of the 3,536 NPPES records with a practice address in Traverse City, and 6,013 family medicine physician records in Michigan.

The 8 family medicine physician records with the nearest ZIP codes

  1. Peter Alvarado, D.O.Traverse City, MI 496841477514776
  2. Peggy Anderson, D.O.Traverse City, MI 496841326094475
  3. Flora Biancalana, MDTraverse City, MI 496841649238098
  4. Raymond Bohrer, MDTraverse City, MI 496841952372369
  5. Mark Davenport, MDTraverse City, MI 496841477525632
  6. Douglas Gentry, MDTraverse City, MI 496841245224435
  7. Elizabeth Hughes, D.O.Traverse City, MI 496841811943723
  8. Janine Kohler, D.O.Traverse City, MI 496841194770347

Common questions

What is Thomas Jacobs Yax, M.D.'s NPI number?

Thomas Jacobs Yax, M.D.'s National Provider Identifier (NPI) is 1104078419, issued on Oct 17, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Thomas Jacobs Yax, M.D. located?

The NPPES record lists a practice address at 224 Circle Dr, Traverse City, MI, 49684. Phone: (231) 932-4912. Providers update this record themselves, so call before visiting.

How can I verify Thomas Jacobs Yax, M.D.'s license?

NPPES lists Michigan license number 4301092520, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Thomas Jacobs Yax, M.D. prescribe under Medicare Part D?

In 2024, Thomas Jacobs Yax, M.D. had 4,215 Medicare Part D claims for 331 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.