John Kemppainen, M.D.
NPI 1215107636 · Pediatric Orthopaedic Surgery Physician · Grand Rapids, MI
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Kemppainen, M.D. is a Pediatric Orthopaedic Surgery Physician provider in Grand Rapids, MI (NPI 1215107636).
Provider details
- NPI number
- 1215107636
- Entity type
- Individual
- Primary specialty
- Pediatric Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 57-013331 (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
18 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
Mailing address
Registry dates
- Enumerated
- 2008-03-03
- Last updated
- 2021-02-24
- Certified
- 2021-02-24
Frequently asked questions
- What is John Kemppainen's NPI number?
- John Kemppainen's National Provider Identifier (NPI) is 1215107636, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Kemppainen's specialty?
- John Kemppainen is listed in the NPPES registry with a primary specialty of Pediatric Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is John Kemppainen located?
- John Kemppainen's practice location on file with NPPES is 35 Michigan St Ne, Grand Rapids, MI 49503-2514.
- What is John Kemppainen's phone number?
- The practice phone number listed in the NPPES registry for John Kemppainen is (616) 267-2600.
- Does John Kemppainen accept Medicare?
- John Kemppainen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Kemppainen's NPI active?
- Yes — John Kemppainen's NPI (1215107636) is active in the NPPES registry as of the last update on 2021-02-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.