Ronald Zegerius, MD
NPI 1629053368 · Cardiovascular Disease Physician · Kalamazoo, MI
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ronald Zegerius, MD is a Cardiovascular Disease Physician provider in Kalamazoo, MI (NPI 1629053368).
Provider details
- NPI number
- 1629053368
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- License
- 4301034102 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 86 | 43 |
| Apixabanbrand: Eliquis | 81 | 33 |
| Metoprolol Tartrate | 55 | 30 |
| Atorvastatin Calcium | 44 | 23 |
| Losartan Potassium | 41 | 19 |
| Amlodipine Besylate | 34 | 18 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-12-14
- Last updated
- 2007-07-08
Frequently asked questions
- What is Ronald Zegerius's NPI number?
- Ronald Zegerius's National Provider Identifier (NPI) is 1629053368, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ronald Zegerius's specialty?
- Ronald Zegerius is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Ronald Zegerius located?
- Ronald Zegerius's practice location on file with NPPES is 601 John St, Kalamazoo, MI 49007-5341.
- What is Ronald Zegerius's phone number?
- The practice phone number listed in the NPPES registry for Ronald Zegerius is (269) 345-9606.
- Does Ronald Zegerius accept Medicare?
- Ronald Zegerius is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ronald Zegerius's NPI active?
- Yes — Ronald Zegerius's NPI (1629053368) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.