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

Mary Tahnk-Johnson

Individual provider Nephrology Physician · NPI 1548247547

Mary Tahnk-Johnson is a Nephrology in St Louis Park, Minnesota. Graduated from University of Minnesota Medical School in 1988, 38 years ago. Practices with Park Nicollet Clinic, a 1,773-clinician group and accepts Medicare assignment. Licensed in Minnesota.

Years since qualifying
38
Trained at
University of Minnesota Medical School
Licensed in
MN
In the registry since
2005

Practice location Address checks out

6490 Excelsior Blvd Ste W300
St Louis Park, MN 55426-4705
Phone: (952) 993-4705
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence 32922 (MN)

Record details

NPI number1548247547
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedDecember 30, 2005
Last updated in NPPESOctober 12, 2011

Medicare enrollment

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

Medicare specialtyNEPHROLOGY
Also practisesCRITICAL CARE (INTENSIVISTS), INTERNAL MEDICINE
Medical schoolUNIVERSITY OF MINNESOTA MEDICAL SCHOOL
Graduated 1988 (38 years in practice)
Group practice Park Nicollet Clinic — 1773 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations14 on file with Medicare

Other providers in St Louis Park