Duncan Chapman, MD
Family Medicine Physician · Portage, MI
Duncan Chapman, MD is a family medicine physician with a practice address in Portage, Michigan, and NPI 1437474152, issued on Apr 6, 2010. Check the license (Michigan 4301102712, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Duncan Chapman
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 4301102712 MI
Self-reported in NPPES; status is on the state search - Practice location
- 2700 East Centre Ave, Portage, MI 49002
- Phone
- (269) 286-7050
- Enumerated
- Apr 6, 2010
- Record last updated
- Nov 27, 2023
- Fax
- (269) 286-9705
- Medicare enrollment
- Enrolled (PECOS I20260313002642); may accept Medicare assignment
- Medical or professional school
- Wayne State University School Of Medicine, 2010
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,013 in Michigan → Look up another NPI →
Also registered at 2700 East Centre Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kaitlin Chappell, NPFamily Nurse Practitioner1518267137
- Renee Lassila, MDPediatrics Physician1619903317
- Kelly Pasch, FNPFamily Nurse Practitioner1245782804
- Leah Predum, PA-CPhysician Assistant1417263336
- Benjamin Sage, PAPhysician Assistant1134520281
Verify Duncan Chapman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301102712Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.2 times the Medicare Part D claims of the average family medicine physician in 2024
11,434 Medicare Part D claims for 765 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 534 claims were for opioids.
Most prescribed
- Atorvastatin Calcium1,003 claims
- Lisinopril521 claims
- Amlodipine Besylate489 claims
- Levothyroxine Sodium371 claims
- Omeprazole359 claims
- Gabapentin325 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: $812.41
33 payments; by number, the most common kind was food and beverage; 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Duncan Chapman among 6,013 family medicine physician records in Michigan
Duncan Chapman, MD 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 2010, is newer than 57% of them.
- NPI issued2010 · 57% of these records are older, 42% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2010 · median 2008 among the 3,493 with a school on file
- Record last updated2023 · 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).
30 family medicine physician records list a practice address in Portage
They are 30 of the 1,492 NPPES records with a practice address in Portage, and 6,013 family medicine physician records in Michigan.
All 6,013 in Michigan → Every provider in Portage → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Dietmar Grentz, MDPortage, MI 490021346269586
- Brandon Manderle, MDPortage, MI 490021013576271
- Remnant Mwanahiba, MDPortage, MI 490021043668650
- Nicole Ognjanovski, MDPortage, MI 490021427610518
- Al PinonPortage, MI 490021669580981
- Abigail Richeson, D.O.Portage, MI 490021427435320
- Ismael Soto Rivas, M.D.Portage, MI 490021699787556
- Jeffrey Stevens, D.O.Portage, MI 490021992769285
Common questions
What is Duncan Chapman, MD's NPI number?
Duncan Chapman, MD's National Provider Identifier (NPI) is 1437474152, issued on Apr 6, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Duncan Chapman, MD located?
The NPPES record lists a practice address at 2700 East Centre Ave, Portage, MI, 49002. Phone: (269) 286-7050. Providers update this record themselves, so call before visiting.
How can I verify Duncan Chapman, MD's license?
NPPES lists Michigan license number 4301102712, 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 Duncan Chapman, MD prescribe under Medicare Part D?
In 2024, Duncan Chapman, MD had 11,434 Medicare Part D claims for 765 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.