Dr. Preston Duane Thomas, MD
- Medicare services, 2024
- 288
- Medicare patients, 2024
- 91
- Part D claims, 2024
- 4,878
- Publications
- 1
- Hospital affiliations
- 1
- Practice address
- 50 N Perry St, Pontiac, MI 48342
- Practice phone
- Call (248) 338-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
McLaren Oakland Hospital
Pontiac, Michigan
Find Dr. Thomas' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Preston Duane Thomas is a family medicine physician in Pontiac, Michigan
Dr. Thomas practices at McLaren Oakland Hospital in Pontiac, Michigan.
Dr. Thomas' NPI, 1427018571, was assigned on March 24, 2006. Dr. Thomas graduated from Wayne State University School of Medicine in 2000. Dr. Thomas holds Michigan license 4301076748.
- NPI
- 1427018571NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0042295586
- NPI enumeration date
- March 24, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (248) 338-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 52
- Medical school graduation
- 2000
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Preston Duane Thomas practices at McLaren Oakland Hospital in Pontiac, Michigan
Dr. Thomas' primary practice is McLaren Oakland Hospital, at 50 N Perry St, Pontiac, MI 48342 in Oakland County. The practice phone is (248) 338-5000.
- McLaren Oakland Hospital50 N Perry St, Pontiac, MI 48342 · Oakland CountyPhone(248) 338-5000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Preston Duane Thomas is affiliated with 3 sites of care and 2 medical groups
Dr. Thomas' primary practice is McLaren Oakland Hospital in Pontiac, Michigan. Dr. Thomas is also affiliated with McLaren Oakland. The medical group on file is McLaren Lapeer Region Community Medical Center. Dmand AI also links Dr. Thomas to 1 more physician office and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Preston Duane Thomas' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Thomas practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| McLaren Oakland Hospital | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Preston Duane Thomas is one of 4,931 family medicine physicians in Michigan
Family medicine is Dr. Thomas' primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Thomas is licensed in Michigan.
Specialties and state licenses
- Family medicine, MichiganPrimary
Family medicine physicians near Dr. Thomas
Counts of family medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Preston Duane Thomas billed Medicare for 288 services in 2024
CMS data shows 288 Medicare services from Dr. Thomas across 5 procedure codes in 2024, for 91 Medicare patients. Medicare paid $19,635 for them. Every service was in an office.
Dr. Thomas' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1622024: 1716%
- Other services
- 2023: 382024: 6776%
- Surgery
- 2023: 652024: 5023%
Dr. Thomas compared with the Michigan median for family medicine physicians, 2024
- Dr. Thomas
- Michigan median
- Medicare services
- 288vs 24816% above
- Medicare patients
- 91vs 11219% below
- Part D claims
- 4,113vs 1,0334.0 times
Medians across 4,990 family medicine physicians in Michigan with Dmand AI profiles that report each measure.
Dr. Thomas' most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Thomas?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Thomas and other family medicine physicians in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Preston Duane Thomas treated 91 Medicare patients in 2024, average age 70
CMS counts 91 Medicare patients who saw Dr. Thomas in 2024. The largest group is 65 to 74, with 33 patients. 73% of them have high blood pressure, and 64% have high cholesterol. 35% are also on Medicaid. Their average risk score is 1.23, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Thomas' median patient age at 66, with 39% women.
Dr. Thomas' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Thomas' Medicare patients by sex, 2024
- Women4651%
- Men4549%
Chronic conditions among Dr. Thomas' Medicare patients, 2024
- High blood pressure73%
- High cholesterol64%
- Arthritis42%
- Diabetes35%
- Chronic kidney disease33%
- Mood disorders32%
- Depression27%
- Atrial fibrillation23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Thomas' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women39%
- Men60%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Preston Duane Thomas wrote 4,878 Medicare Part D claims in 2024
In 2024, Dr. Thomas wrote 4,878 Medicare Part D claims for 359 patients. 87% of them were for generic drugs. CMS names the drug for 4,113 of them, across 106 drugs with 11 or more claims each, at $400,812 in total drug cost. In 2023, CMS named 3,518 claims across 94 drugs.
Dr. Thomas' Part D claims by kind of drug, 2024
- Generic4,222 claims87%
- Brand-name631 claims13%
- Other25 claims1%
Dr. Thomas' most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Thomas' Part D claims, 2024
- Opioids5%245 of 4,878 claims
- Antibiotics1%57 of 4,878 claims
- Antipsychotics, patients 65 and over1%40 of 4,878 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 3,5182024: 4,11317%
Drugs named by CMS: 106 in 2024, 94 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Preston Duane Thomas takes part in Medicare
Dr. Thomas accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Preston Duane Thomas has 1 publication on record
Dmand AI links 1 paper to Dr. Thomas in 2024. Dr. Thomas' most frequent co-author is Shu Feng.
Dr. Thomas' most frequent co-authors
Recent publications by Dr. Thomas
See who Dr. Thomas researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Thomas works with, so you can find a warm path to the right family medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Preston Duane Thomas received $3,574 in industry payments from 2016 to 2025
CMS Open Payments shows 192 general payments to Dr. Thomas from 26 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $807.
General payments to Dr. Thomas by program year, 2016 to 2025
General payments to Dr. Thomas by kind, 2016 to 2025
- Food and beverage$3,569100%
- Consulting fees$50%
Companies that paid Dr. Thomas the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Preston Duane Thomas graduated from Wayne State University School of Medicine
Dr. Thomas graduated from Wayne State University School of Medicine in 2000.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Preston Duane Thomas's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Preston Duane Thomas
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Preston Duane Thomas' NPI number?
Dr. Preston Duane Thomas' NPI number is 1427018571. It was assigned on March 24, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Preston Duane Thomas?
Dr. Preston Duane Thomas is a family medicine physician in Pontiac, Michigan. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Preston Duane Thomas practice?
Dr. Thomas practices at 50 N Perry St, Pontiac, MI 48342. Dr. Thomas' primary practice is McLaren Oakland Hospital in Pontiac, Michigan. Dmand AI also links Dr. Thomas to 1 physician office and 1 medical group.
What is Dr. Preston Duane Thomas' office phone number?
The practice phone on file for Dr. Thomas is (248) 338-5000.
What is Dr. Preston Duane Thomas' medical license number?
Dr. Thomas holds Michigan license 4301076748.
Which hospitals is Dr. Preston Duane Thomas affiliated with?
Dr. Thomas is affiliated with McLaren Oakland.
What medical group is Dr. Preston Duane Thomas part of?
Dr. Thomas is linked to McLaren Lapeer Region Community Medical Center. Dmand AI links Dr. Thomas to 1 more medical group.
Does Dr. Preston Duane Thomas accept Medicare?
Yes. CMS data shows Dr. Thomas billed Medicare for 288 services in 2024, and Dr. Thomas accepts Medicare assignment.
How many Medicare patients does Dr. Preston Duane Thomas see?
CMS counts 91 Medicare patients who saw Dr. Thomas in 2024, with an average age of 70.
What services does Dr. Preston Duane Thomas bill to Medicare?
In 2024, Dr. Thomas' most billed Medicare services were office visit, established patient (99214), surgery: heart and blood vessels (36415) and medicare service (G0439).
Show 6 more questionsShow fewer questions
Where did Dr. Preston Duane Thomas go to medical school?
Dr. Thomas graduated from Wayne State University School of Medicine in 2000.
What drugs does Dr. Preston Duane Thomas prescribe most?
In 2024 Medicare Part D data, Dr. Thomas' most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Hydrocodone-Acetaminophen.
Has Dr. Preston Duane Thomas received payments from drug or device companies?
CMS Open Payments shows $3,574 in general payments to Dr. Thomas from 26 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Preston Duane Thomas been practicing?
Dr. Thomas graduated from medical school in 2000, 26 years ago.
Does Dr. Preston Duane Thomas do research?
Dmand AI links 1 publication to Dr. Thomas.
Who does Dr. Preston Duane Thomas publish with?
Dr. Thomas' most frequent co-authors are Shu Feng (1 shared paper).
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