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

Individual provider Family Medicine Physician · NPI 1902245681

Katherine Denise Oyster, MD is a Family Practice in Grand Rapids, Michigan. Graduated from Medical College of Wisconsin in 2013, 13 years ago. Practices with Allina Health System, a 3,867-clinician group and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
13
Trained at
Medical College of Wisconsin
Licensed in
MI
In the registry since
2013
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

300 Lafayette Ave SE Ste 4000
Grand Rapids, MI 49503-4692
Phone: (616) 685-6922
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 4301102931 (MI)

Record details

NPI number1902245681
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 17, 2013
Last updated in NPPESMarch 11, 2021
Certification dateMarch 11, 2021

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolMEDICAL COLLEGE OF WISCONSIN
Graduated 2013 (13 years in practice)
Group practice Allina Health System — 3867 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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