Preston Duane Thomas, M.D.
Family Medicine Physician · Pontiac, MI
Preston Duane Thomas, M.D. is a family medicine physician with a practice address in Pontiac, Michigan, and NPI 1427018571, issued on Mar 24, 2006. Check the license (Michigan 4301076748, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Preston Duane Thomas
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 4301076748 MI
Self-reported in NPPES; status is on the state search - Practice location
- 46 N Saginaw St, Pontiac, MI 48342
- Phone
- (248) 322-6747
- Enumerated
- Mar 24, 2006
- Record last updated
- Apr 23, 2026
- Fax
- (248) 322-5787
- Medicaid ID
- 4632453 MI
- Medicare enrollment
- Enrolled (PECOS I20040621000337); accepts Medicare assignment
- Medical or professional school
- Wayne State University School Of Medicine, 2000
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,013 in Michigan → Look up another NPI →
Also registered at 46 N Saginaw St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ashlee Barnes, MSN, APRN, FNP-CFamily Nurse Practitioner1790195527
- Brian Chang, D.D.S.General Practice Dentistry1518315407
- Renee Maxwell, LMSWClinical Social Worker1033654371
- Ashley Parks, FNP-BCFamily Nurse Practitioner1366779639
- Keyla Silva-Byrd, LMSW, LCSWClinical Social Worker1447613070
Verify Preston Duane Thomas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301076748Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
38% more Medicare Part D claims than the average family medicine physician in 2024
4,878 Medicare Part D claims for 359 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. 245 claims were for opioids.
Most prescribed
- Atorvastatin Calcium297 claims
- Amlodipine Besylate139 claims
- Hydrocodone-Acetaminophen123 claims
- Simvastatin121 claims
- Levothyroxine Sodium109 claims
- Losartan Potassium107 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: $231.11
7 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Mclaren Medical GroupChesterfield, MI
- Vpa PCTroy, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Preston Duane Thomas among 6,013 family medicine physician records in Michigan
Preston Duane Thomas, 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 2006, is newer than 11% of them.
- NPI issued2006 · 11% of these records are older, 56% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2000 · 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).
86 family medicine physician records list a practice address in Pontiac
They are 86 of the 1,951 NPPES records with a practice address in Pontiac, and 6,013 family medicine physician records in Michigan.
All 6,013 in Michigan → Every provider in Pontiac → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Mohammad Ballout, MDPontiac, MI 483421235802182
- Robert Basak, D.O.Pontiac, MI 483421528258761
- Abdullah Bokhari, D.O.Pontiac, MI 483421861832552
- Synyi Chen, MS, DOPontiac, MI 483421033233671
- Mary Goldman, D.O.Pontiac, MI 483421477564847
- Maha Hassan, D.O.Pontiac, MI 483421215166442
- Kara Herber, D.O.Pontiac, MI 483421902096118
- Herbert Isaac, MDPontiac, MI 483421841231941
Common questions
What is Preston Duane Thomas, M.D.'s NPI number?
Preston Duane Thomas, M.D.'s National Provider Identifier (NPI) is 1427018571, issued on Mar 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Preston Duane Thomas, M.D. located?
The NPPES record lists a practice address at 46 N Saginaw St, Pontiac, MI, 48342. Phone: (248) 322-6747. Providers update this record themselves, so call before visiting.
How can I verify Preston Duane Thomas, M.D.'s license?
NPPES lists Michigan license number 4301076748, 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 Preston Duane Thomas, M.D. prescribe under Medicare Part D?
In 2024, Preston Duane Thomas, M.D. had 4,878 Medicare Part D claims for 359 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.