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

Marissa A Schaefer, PA

Individual provider Physician Assistant · NPI 1508144544

Marissa A Schaefer, PA is a Physician Assistant in Grand Rapids, Michigan. Qualified in 2011, 15 years ago. Practices with Spectrum Health Primary Care Partners, a 2,303-clinician group and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
15
Licensed in
MI
In the registry since
2011
What do these letters mean?
PA — Physician Assistant
A licensed clinician who examines, diagnoses and treats under a physician's supervision.

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Practice location Address checks out

100 Michigan St NE
Grand Rapids, MI 49503-2560
Phone: (616) 267-8244
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence 5601006554 (MI)

Record details

NPI number1508144544
Entity typeIndividual (Type 1)
GenderFemale
Credentials PA
Sole proprietorNo
NPI enumeratedJuly 25, 2011
Last updated in NPPESFebruary 24, 2021
Certification dateFebruary 24, 2021

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2011 (15 years in practice)
Group practice Spectrum Health Primary Care Partners — 2303 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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