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

Diana Catherine Diemer, FNP

Individual provider Family Medicine Physician · NPI 1104313436

Diana Catherine Diemer, FNP is a Nurse Practitioner in Hastings, Michigan. Qualified in 2018, 8 years ago. Practices with Thornapple Valley Family Physicians PC, a 5-clinician group and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
8
Licensed in
MI
In the registry since
2018
What do these letters mean?
FNP — Family Nurse Practitioner
A nurse practitioner who treats patients of all ages, much like a family doctor.

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Practice location Address checks out

1005 W Green St Ste 304
Hastings, MI 49058-1725
Phone: (269) 948-8057
Fax: (269) 948-8964
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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 4704272488 (MI)

Record details

NPI number1104313436
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP
Sole proprietorNo
NPI enumeratedApril 23, 2018
Last updated in NPPESApril 23, 2018

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2018 (8 years in practice)
Group practice Thornapple Valley Family Physicians Pc — 5 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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