Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Andrew Koelper, DO

Individual provider Internal Medicine Physician · NPI 1598348435

Andrew Koelper, DO practises Internal Medicine in Kalamazoo, Michigan. Graduated from Marian University College of Osteopathic Medicine in 2021, 5 years ago. Practices with Hendricks County Hospital, a 340-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Indiana and Michigan.

Years since qualifying
5
Trained at
Marian University College of Osteopathic Medicine
Licensed in
IN, MI
In the registry since
2021
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

1000 Oakland Dr
Kalamazoo, MI 49008-1282
Phone: (269) 337-4600
Show map & directions

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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1000 E Main St, Danville, IN 46122-1948 — (317) 718-4740

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 02007889A (IN)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X · Licence 5151014998 (MI)

Record details

NPI number1598348435
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedApril 29, 2021
Last updated in NPPESSeptember 26, 2024
Certification dateSeptember 26, 2024

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolMARIAN UNIVERSITY COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 2021 (5 years in practice)
Group practice Hendricks County Hospital — 340 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Colonoscopy 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients67
Services billed 136 a service is one billed item, such as a visit, a test or a procedure
Average patient age77

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Hendricks County Hospital

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 340 clinicians in the practice; 12 are shown here.

Other providers in Kalamazoo