Ronald Duemler, MD
Geriatric Medicine (Family Medicine) Physician · Grand Rapids, MI
Ronald Duemler, MD is a geriatric medicine (family medicine) physician with a practice address in Grand Rapids, Michigan, and NPI 1679524284, issued on May 16, 2006. Check the license (Michigan 4301050164, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Ronald Duemler
- Credential
- MD
- Primary taxonomy
- Geriatric Medicine (Family Medicine) Physician 207QG0300X
- License number
- 4301050164 MI
Self-reported in NPPES; status is on the state search - Practice location
- 200 Jefferson Ave SE, Grand Rapids, MI 49503
- Phone
- (616) 685-1835
- Enumerated
- May 16, 2006
- Record last updated
- Jul 7, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (616) 685-1846
- Medicaid IDs
- 3489002 MI
4846834 MI
4877474 MI - Medicare enrollment
- Enrolled (PECOS I20060911000358); accepts Medicare assignment
- Medical or professional school
- Rush Medical College Of Rush University, 1985
- Entity
- Type 1 · individual
8 nearest geriatric medicine (family medicine) physician records → All 61 in Michigan → Look up another NPI →
Also registered at 200 Jefferson Ave SE
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ronald Duemler in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301050164Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.9 times the Medicare Part D claims of the average geriatric medicine (family medicine) physician in 2024
14,927 Medicare Part D claims for 265 beneficiaries, against an average of 5,222 among the 1,271 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 314 claims were for opioids.
Most prescribed
- Escitalopram Oxalate975 claims
- Torsemide819 claims
- Omeprazole730 claims
- Levothyroxine Sodium710 claims
- Mirtazapine552 claims
- Atorvastatin Calcium401 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.
Bills Medicare through one group practice
- Saint Mary's Health ServicesGrand Rapids, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ronald Duemler among 61 geriatric medicine (family medicine) physician records in Michigan
Ronald Duemler, MD is one of 61 geriatric medicine (family medicine) physician records with a practice address in Michigan. 67% 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 20% of them.
- NPI issued2006 · 20% of these records are older, 38% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 41% of these records are
- Graduated1985 · median 1997 among the 25 with a school on file
- Record last updated2011 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QG0300X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Geriatric Medicine (Family Medicine) Physician providers in Michigan
There are 61 geriatric medicine (family medicine) physician records in Michigan.
All 61 in Michigan → Every provider in Grand Rapids → Geriatric Medicine (Family Medicine) Physician nationwide →
The 8 geriatric medicine (family medicine) physician records with the nearest ZIP codes
- Gwen Brandt, MDGrand Rapids, MI 495031316093529
- Bradley Quist, MDWyoming, MI 495191902257298
- Mary Ball, M.D.Grand Rapids, MI 495461801888938
- Afriyie Gray, DOGrand Rapids, MI 495461477842904
- Raymond Tracy, D.O.Walkerville, MI 494591588664064
- Jay Klein, DOMuskegon, MI 494441184799199
- Daniel Smalley, DOLudington, MI 494311982871265
- Cynthia Ochs, DOHart, MI 494201811926744
Common questions
What is Ronald Duemler, MD's NPI number?
Ronald Duemler, MD's National Provider Identifier (NPI) is 1679524284, issued on May 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ronald Duemler, MD located?
The NPPES record lists a practice address at 200 Jefferson Ave SE, Grand Rapids, MI, 49503. Phone: (616) 685-1835. Providers update this record themselves, so call before visiting.
How can I verify Ronald Duemler, MD's license?
NPPES lists Michigan license number 4301050164, 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 Ronald Duemler, MD prescribe under Medicare Part D?
In 2024, Ronald Duemler, MD had 14,927 Medicare Part D claims for 265 beneficiaries; the average among geriatric medicine (family medicine) physician prescribers was 5,222. 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.