1. Home
  2. Directory
  3. Wisconsin
  4. La Crosse
  5. Internal Medicine
  6. NPI Profile

MARY K FROHNAUER MD
NPI 1013018704
Internal Medicine - Endocrinology, Diabetes & Metabolism in La Crosse, WI

Active since September 26, 2006
1836 SOUTH AVE, LA CROSSE, WI 54601(608) 775-2021 Get Directions Write a Review

NPPES record last updated: September 14, 2015. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Mary K Frohnauer Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARY K FROHNAUER MD (NPI 1013018704) is an individual endocrinology, diabetes & metabolism provider in La Crosse, Wisconsin, licensed in Wisconsin (41046) and active in the NPI registry since September 2006.

NPPES Registry Identity

NPI1013018704
Entity TypeIndividualFemale
Primary Taxonomy207RE0101X
Provider Legal NameMARY K FROHNAUERCredential: MD
Location Address1836 SOUTH AVELa Crosse, WI 54601-5429
Mailing Address1836 South AveLa Crosse, WI 54601-5429 · (608) 782-7300
Phone(608) 775-2021
Sole ProprietorNo
Enumeration DateSeptember 26, 2006
Last NPPES UpdateSeptember 14, 2015
✔ NPI 1013018704 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License✔ Licensed in WI · 41046
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
Also ListedInternal MedicineTaxonomy 207R00000X · License 41046 (WI)
1836 SOUTH AVE, La Crosse, WI 54601
Open in Google Maps ↗

Other Identifiers 3

Medicare UPING98024
Medicare ID-Type Unspecified007220270WI
Medicaid32572300WI

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JEFFREY BRIAN TROHKIMOINEN M.D.
Anesthesiology
1836 SOUTH AVE, GUNDERSEN CLINIC, LTD.
LA CROSSE, WI 54601
La Crosse County (608) 775-2031
JESSICA E THESING CRNA
Nurse Anesthetist, Certified Registered
1836 SOUTH AVE
LA CROSSE, WI 54601
La Crosse County (608) 782-7300
DR. MICHAEL DAVID SMITH PSY.D.
Psychologist
1836 SOUTH AVE
LA CROSSE, WI 54601
La Crosse County (608) 782-7300
JESSICA MAE RASMUSSEN
Surgery
1836 SOUTH AVE
LA CROSSE, WI 54601
La Crosse County (608) 782-7300
JULIE SONSALLA APNP
Nurse Practitioner (Adult Health)
1836 SOUTH AVE
LA CROSSE, WI 54601
La Crosse County (608) 782-7300
LAURA KLINGBEIL
Orthopaedic Surgery
1836 SOUTH AVE
LA CROSSE, WI 54601
La Crosse County (608) 782-7300
SUSAN CAROL SORRENTINO RN
Registered Nurse (Addiction (Substance Use Disorder))
1836 SOUTH AVE
LA CROSSE, WI 54601
La Crosse County (608) 782-7300
NAOMI MUTHONI RUIRU APNP
Nurse Practitioner (Family)
1836 SOUTH AVE
LA CROSSE, WI 54601
La Crosse County (608) 782-7300

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mary Frohnauer's NPI number?

The NPI number for Mary Frohnauer is 1013018704. It was assigned to this individual provider in the NPPES registry on September 26, 2006.

Where is Mary Frohnauer located?

Mary Frohnauer practices at 1836 South Ave, La Crosse, WI 54601. The listed phone number is (608) 775-2021.

What is Mary Frohnauer's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

When was this NPI record last updated?

The NPPES record for Mary Frohnauer was last updated on September 14, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.