Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Katherine Ellen Kowalczyk, DO

Individual provider Obstetrics & Gynecology Physician · NPI 1295997633

Dr. Katherine Ellen Kowalczyk, DO is an Obstetrics/Gynecology in Grand Rapids, Michigan. Qualified in 2008, 18 years ago. Practices with Spectrum Health Hospitals, a 165-clinician group and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
18
Licensed in
MI
In the registry since
2008
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

100 Michigan St NE # MC027
Grand Rapids, MI 49503-2560
Phone: (616) 391-2160
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence 5101017587 (MI)

Record details

NPI number1295997633
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedJune 26, 2008
Last updated in NPPESDecember 5, 2022
Certification dateDecember 5, 2022
Mailing address100 Michigan St Ne, Mc 845, Grand Rapids, MI 49503-2560

Medicare enrollment

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

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolOTHER
Graduated 2008 (18 years in practice)
Group practice Spectrum Health Hospitals — 165 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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