Mark Kuiper, MD
NPI 1689781262 · Internal Medicine Physician · Frankfort, MI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Kuiper, MD is a Internal Medicine Physician provider in Frankfort, MI (NPI 1689781262).
Provider details
- NPI number
- 1689781262
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301074294 (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
2 documented practice locations
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 · 104 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 287 | 89 |
| Levothyroxine Sodium | 212 | 61 |
| Lisinopril | 208 | 56 |
| Amlodipine Besylate | 200 | 62 |
| Rosuvastatin Calcium | 175 | 52 |
| Losartan Potassium | 145 | 51 |
| Apixaban |
Practice location
Mailing address
Additional practice locations (1)
- 9975 W Ottawa AveEmpire, MI 49630-9618Phone: (231) 835-2088
Registry dates
- Enumerated
- 2006-08-23
- Last updated
- 2023-04-12
- Certified
- 2023-04-12
Frequently asked questions
- What is Mark Kuiper's NPI number?
- Mark Kuiper's National Provider Identifier (NPI) is 1689781262, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Kuiper's specialty?
- Mark Kuiper is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Kuiper located?
- Mark Kuiper's practice location on file with NPPES is 224 Park Ave, Frankfort, MI 49635-9658.
- What is Mark Kuiper's phone number?
- The practice phone number listed in the NPPES registry for Mark Kuiper is (231) 352-2990.
- Does Mark Kuiper accept Medicare?
- Mark Kuiper is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Kuiper's NPI active?
- Yes — Mark Kuiper's NPI (1689781262) is active in the NPPES registry as of the last update on 2023-04-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.