Keith Vanoosterhout, MD
NPI 1851329957 · Geriatric Medicine (Internal Medicine) Physician · Grand Rapids, MI
Enrolled with Medicare as Practitioner - Geriatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Keith Vanoosterhout, MD is a Geriatric Medicine (Internal Medicine) Physician provider in Grand Rapids, MI (NPI 1851329957).
Provider details
- NPI number
- 1851329957
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301042561 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 22 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Levothyroxine Sodium | 51 |
| Furosemide | 42 |
| Amlodipine Besylate | 32 |
| Apixabanbrand: Eliquis | 30 |
| Losartan Potassium | 28 |
| Metoprolol Succinate | 28 |
| Citalopram Hydrobromidebrand: Citalopram Hbr | 27 |
| Desvenlafaxine Succinatebrand: Desvenlafaxine Succinate Er | 27 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-28
- Last updated
- 2023-03-07
Frequently asked questions
- What is Keith Vanoosterhout's NPI number?
- Keith Vanoosterhout's National Provider Identifier (NPI) is 1851329957, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Keith Vanoosterhout's specialty?
- Keith Vanoosterhout is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Keith Vanoosterhout located?
- Keith Vanoosterhout's practice location on file with NPPES is 200 Jefferson Ave Se, Grand Rapids, MI 49503-4502.
- What is Keith Vanoosterhout's phone number?
- The practice phone number listed in the NPPES registry for Keith Vanoosterhout is (616) 776-0682.
- Does Keith Vanoosterhout accept Medicare?
- Keith Vanoosterhout is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Keith Vanoosterhout's NPI active?
- Yes — Keith Vanoosterhout's NPI (1851329957) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.