Geneva Sagun, MD
NPI 1588928642 · Internal Medicine Physician · Kalamazoo, MI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Geneva Sagun, MD is a Internal Medicine Physician provider in Kalamazoo, MI (NPI 1588928642).
Provider details
- NPI number
- 1588928642
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 4301101658 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
13 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 63 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 212 | 77 |
| Losartan Potassium | 150 | 58 |
| Amlodipine Besylate | 146 | 54 |
| Levothyroxine Sodium | 137 | 45 |
| Gabapentin | 98 | 32 |
| Lisinopril | 97 | 37 |
| Fluticasone Propionate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$14 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-07-03
- Last updated
- 2021-12-20
- Certified
- 2021-01-29
Frequently asked questions
- What is Geneva Sagun's NPI number?
- Geneva Sagun's National Provider Identifier (NPI) is 1588928642, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Geneva Sagun's specialty?
- Geneva Sagun is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Geneva Sagun located?
- Geneva Sagun's practice location on file with NPPES is 4613 W Main St, Kalamazoo, MI 49006-2645.
- What is Geneva Sagun's phone number?
- The practice phone number listed in the NPPES registry for Geneva Sagun is (269) 488-8672.
- Does Geneva Sagun accept Medicare?
- Geneva Sagun is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Geneva Sagun's NPI active?
- Yes — Geneva Sagun's NPI (1588928642) is active in the NPPES registry as of the last update on 2021-12-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.