Andrew Koelper, DO
NPI 1598348435 · Internal Medicine Physician · Kalamazoo, MI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Andrew Koelper, DO is a Internal Medicine Physician provider in Kalamazoo, MI (NPI 1598348435).
Provider details
- NPI number
- 1598348435
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 02007889A (IN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
5 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
121 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 42 | $73 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 29 | $160 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 26 | $106 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 24 | $110 |
Typical Medicare-allowed amounts for these services range $73–$160 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 38 | 11 |
| Atorvastatin Calcium | 36 | 14 |
| Lisinopril | 32 | — |
| Metformin Hcl | 29 | — |
| Citalopram Hydrobromidebrand: Citalopram Hbr | 18 | — |
| Meloxicam | 17 | — |
| Glycopyrrolate/Formoterol Fum |
Practice location
Mailing address
Additional practice locations (1)
- 1000 E Main StDanville, IN 46122-1948Phone: (317) 718-4740
Registry dates
- Enumerated
- 2021-04-29
- Last updated
- 2024-09-26
- Certified
- 2024-09-26
Frequently asked questions
- What is Andrew Koelper's NPI number?
- Andrew Koelper's National Provider Identifier (NPI) is 1598348435, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Andrew Koelper's specialty?
- Andrew Koelper is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Andrew Koelper located?
- Andrew Koelper's practice location on file with NPPES is 1000 Oakland Dr, Kalamazoo, MI 49008-1282.
- What is Andrew Koelper's phone number?
- The practice phone number listed in the NPPES registry for Andrew Koelper is (269) 337-4600.
- Does Andrew Koelper accept Medicare?
- Andrew Koelper is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Andrew Koelper's NPI active?
- Yes — Andrew Koelper's NPI (1598348435) is active in the NPPES registry as of the last update on 2024-09-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.