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

Michael S. Greiner, NP-C, DC

Individual provider Chiropractor · NPI 1942452453

Michael S. Greiner, NP-C, DC is a Nurse Practitioner in Warren, Michigan. Qualified in 2023, 3 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
3
Licensed in
MI
In the registry since
2008
Specialties on file
2
What do these letters mean?
NP-C — Nurse Practitioner, Certified
A nurse practitioner certified by the AANP.
DC — Doctor of Chiropractic
A licensed chiropractor.

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Practice location Address checks out

2243 E 12 Mile Rd
Warren, MI 48092-5644
Phone: (586) 573-8100
Fax: (586) 573-8101
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence 4704370015 (MI)
Chiropractor Taxonomy 111N00000X · Licence MG009739 (MI)

Record details

NPI number1942452453
Entity typeIndividual (Type 1)
GenderMale
Credentials NP-C , DC
Sole proprietorYes
NPI enumeratedOctober 15, 2008
Last updated in NPPESSeptember 12, 2024
Certification dateSeptember 12, 2024

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2023 (3 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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