Jonathan Stewart Rouwhorst, M.D.
Family Medicine Physician · Grand Haven, MI
Jonathan Stewart Rouwhorst, M.D. is a family medicine physician with a practice address in Grand Haven, Michigan, and NPI 1508120122, issued on Jun 28, 2012. Check the license (Michigan 4301110884, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Jonathan Stewart Rouwhorst
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 4301110884 MI
125062119 IL
64639 WI
Self-reported in NPPES; status is on the state search - Practice location
- 15161 Willowwood CT, Grand Haven, MI 49417
- Phone
- (616) 402-8353
- Enumerated
- Jun 28, 2012
- Record last updated
- Feb 12, 2026
- Medicare enrollment
- Enrolled (PECOS I20260319000517); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,013 in Michigan → Look up another NPI →
Verify Jonathan Stewart Rouwhorst in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301110884Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average family medicine physician in 2024
66 Medicare Part D claims for 24 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of 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.
Jonathan Stewart Rouwhorst among 6,013 family medicine physician records in Michigan
Jonathan Stewart Rouwhorst, 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 2012, is newer than 61% of them.
- NPI issued2012 · 61% of these records are older, 37% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2011 · 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).
30 family medicine physician records list a practice address in Grand Haven
They are 30 of the 665 NPPES records with a practice address in Grand Haven, and 6,013 family medicine physician records in Michigan.
All 6,013 in Michigan → Every provider in Grand Haven → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Molly Crissman, MDGrand Haven, MI 494171902808165
- Stanley Haegert, MDGrand Haven, MI 494171154405009
- Kyle Kramer, DOGrand Haven, MI 494171568588432
- Ruchira Mehra, MDGrand Haven, MI 494171932397627
- David Ottenbaker, MDGrand Haven, MI 494171386648624
- Larry Poel, D.O.Grand Haven, MI 494171134121270
- James Postema, DOGrand Haven, MI 494171457321119
- Daniel Powers, M.D.Grand Haven, MI 494171285636324
Common questions
What is Jonathan Stewart Rouwhorst, M.D.'s NPI number?
Jonathan Stewart Rouwhorst, M.D.'s National Provider Identifier (NPI) is 1508120122, issued on Jun 28, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Jonathan Stewart Rouwhorst, M.D. located?
The NPPES record lists a practice address at 15161 Willowwood CT, Grand Haven, MI, 49417. Phone: (616) 402-8353. Providers update this record themselves, so call before visiting.
How can I verify Jonathan Stewart Rouwhorst, M.D.'s license?
NPPES lists Michigan license number 4301110884, 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 Jonathan Stewart Rouwhorst, M.D. prescribe under Medicare Part D?
In 2024, Jonathan Stewart Rouwhorst, M.D. had 66 Medicare Part D claims for 24 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.