Keith Vanoosterhout, MD
Geriatric Medicine (Internal Medicine) Physician · Grand Rapids, MI
Keith Vanoosterhout, MD is a geriatric medicine (internal medicine) physician with a practice address in Grand Rapids, Michigan, and NPI 1851329957, issued on Jun 28, 2006. Check the license (Michigan 4301042561, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Keith Vanoosterhout
- Credential
- MD
- Primary taxonomy
- Geriatric Medicine (Internal Medicine) Physician 207RG0300X
- License number
- 4301042561 MI
Self-reported in NPPES; status is on the state search - Practice location
- 200 Jefferson Ave SE, Grand Rapids, MI 49503
- Phone
- (616) 776-0682
- Enumerated
- Jun 28, 2006
- Record last updated
- Mar 7, 2023
- Fax
- (616) 685-1846
- Medicaid ID
- 4854101 MI
- Medicare enrollment
- Enrolled (PECOS I20110225000847); accepts Medicare assignment
- Medical or professional school
- Wayne State University School Of Medicine, 1979
- Entity
- Type 1 · individual
8 nearest geriatric medicine (internal medicine) physician records → All 184 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 Keith Vanoosterhout in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301042561Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024
635 Medicare Part D claims for 51 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. 18 claims were for opioids.
Most prescribed
- Levothyroxine Sodium51 claims
- Furosemide42 claims
- Amlodipine Besylate32 claims
- Eliquis30 claims
- Losartan Potassium28 claims
- Metoprolol Succinate28 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).
Keith Vanoosterhout among 184 geriatric medicine (internal medicine) physician records in Michigan
Keith Vanoosterhout, MD is one of 184 geriatric medicine (internal medicine) physician records with a practice address in Michigan. 76% 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 8% of them.
- NPI issued2006 · 8% of these records are older, 43% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 54% of these records are
- Graduated1979 · median 1997 among the 99 with a school on file
- Record last updated2023 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X 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 (Internal Medicine) Physician providers in Michigan
There are 184 geriatric medicine (internal medicine) physician records in Michigan.
All 184 in Michigan → Every provider in Grand Rapids → Geriatric Medicine (Internal Medicine) Physician nationwide →
The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes
- Shruti Anand, MDGrand Rapids, MI 495031063908416
- Madelon Krissoff, MDGrand Rapids, MI 495031134340003
- Kathleen Mosentine, MDGrand Rapids, MI 495031043251275
- Michael Post, MDGrand Rapids, MI 495031841307154
- Robert Riekse, MDGrand Rapids, MI 495031225081672
- Venkatanagaraja Vadlamudi, MDGrand Rapids, MI 495031902035660
- June Jones, MD.Grand Rapids, MI 495081730256389
- Rick Saier, MDWalker, MI 495341750459285
Common questions
What is Keith Vanoosterhout, MD's NPI number?
Keith Vanoosterhout, MD's National Provider Identifier (NPI) is 1851329957, issued on Jun 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Keith Vanoosterhout, MD located?
The NPPES record lists a practice address at 200 Jefferson Ave SE, Grand Rapids, MI, 49503. Phone: (616) 776-0682. Providers update this record themselves, so call before visiting.
How can I verify Keith Vanoosterhout, MD's license?
NPPES lists Michigan license number 4301042561, 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 Keith Vanoosterhout, MD prescribe under Medicare Part D?
In 2024, Keith Vanoosterhout, MD had 635 Medicare Part D claims for 51 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. 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.