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

MS. Marissa Claire Niemeyer, MSN, AGPCNP-C

Individual provider Gerontology Nurse Practitioner · NPI 1003485194

MS. Marissa Claire Niemeyer, MSN, AGPCNP-C is a Nurse Practitioner in Grand Rapids, Michigan. Qualified in 2021, 5 years ago. Practices with Spectrum Health Primary Care Partners, a 2,303-clinician group and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
5
Licensed in
MI
In the registry since
2021
What do these letters mean?
MSN — Master of Science in Nursing
A graduate nursing degree, usually held alongside an advanced practice licence.

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Practice location Address checks out

145 Michigan St NE Ste 3410
Grand Rapids, MI 49503-2563
Phone: (616) 391-9945
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gerontology Nurse Practitioner (primary) Taxonomy 363LG0600X · Licence 4704330088 (MI)

Record details

NPI number1003485194
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSN , AGPCNP-C
Sole proprietorNo
NPI enumeratedJune 22, 2021
Last updated in NPPESJanuary 31, 2025
Certification dateJanuary 31, 2025

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2021 (5 years in practice)
Group practice Spectrum Health Primary Care Partners — 2303 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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