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

Dianna Holtz, RN

Individual provider Psychiatric/Mental Health Registered Nurse · NPI 1144768938

Dianna Holtz, RN is a Psychiatric/Mental Health Registered Nurse in Ann Arbor, Michigan. Licensed in Michigan. Registered with an NPI since 2017.

Licensed in
MI
In the registry since
2017
What do these letters mean?
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.

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Practice location Address checks out

110 N 4th Ave
Ann Arbor, MI 48104-5503
Phone: (734) 544-3000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatric/Mental Health Registered Nurse (primary) Taxonomy 163WP0808X · Licence 4704321630 (MI)

Record details

NPI number1144768938
Entity typeIndividual (Type 1)
GenderFemale
Credentials RN
Sole proprietorNo
NPI enumeratedFebruary 1, 2017
Last updated in NPPESFebruary 1, 2017
Mailing address555 Towner St, Ypsilanti, MI 48198-5752

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