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John Oostendorp, MD
NPI 1790725802 · Internal Medicine Physician · Holland, MI
John Oostendorp, MD is a Internal Medicine Physician provider in Holland, MI (NPI 1790725802).
Provider details
- NPI number
- 1790725802
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301042921 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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.
Practice location
588 Lakewood Blvd
Holland, MI 49424-2023
Phone: (616) 494-5800
Fax: (616) 494-5901
Approximate (ZIP-level) locationGet directions
Mailing address
100 Michigan St Ne
Grand Rapids, MI 49503-2560
Registry dates
- Enumerated
- 2006-06-07
- Last updated
- 2022-01-07
- Certified
- 2022-01-07
Frequently asked questions
- What is John Oostendorp's NPI number?
- John Oostendorp's National Provider Identifier (NPI) is 1790725802, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Oostendorp's specialty?
- John Oostendorp is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Oostendorp located?
- John Oostendorp's practice location on file with NPPES is 588 Lakewood Blvd, Holland, MI 49424-2023.
- What is John Oostendorp's phone number?
- The practice phone number listed in the NPPES registry for John Oostendorp is (616) 494-5800.
- Is John Oostendorp's NPI active?
- Yes — John Oostendorp's NPI (1790725802) is active in the NPPES registry as of the last update on 2022-01-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.