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

Mrs. Diane M Oppeneer, APNP

Individual provider Nurse Practitioner · NPI 1831174143

Mrs. Diane M Oppeneer, APNP is a Nurse Practitioner in Manitowoc, Wisconsin. Qualified in 2003, 23 years ago. Practices with Froedtert Manitowoc Medical Group, LLC, a 157-clinician group. Licensed in Wisconsin.

Years since qualifying
23
Licensed in
WI
In the registry since
2005
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Practice location Address checks out

1650 S 41st St
Manitowoc, WI 54220-7316
Phone: (920) 476-6200
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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 2302-033 (WI)

Record details

NPI number1831174143
Entity typeIndividual (Type 1)
GenderFemale
Credentials APNP
Sole proprietorNo
NPI enumeratedDecember 8, 2005
Last updated in NPPESOctober 9, 2025
Certification dateOctober 9, 2025

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2003 (23 years in practice)
Group practice Froedtert Manitowoc Medical Group, Llc — 157 clinicians
Accepts Medicare assignment Not indicated
Practice locations4 on file with Medicare

Other providers in Manitowoc