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

Gretchen Mary Niemioja, MD

Individual provider Physical Medicine & Rehabilitation Physician · NPI 1376707836

Gretchen Mary Niemioja, MD is registered under Physical Medicine and Rehabilitation in Saint Paul, Minnesota. Graduated from University of Minnesota Medical School in 2008, 18 years ago. Practices with Group Health Plan Inc, a 1,633-clinician group and accepts Medicare assignment. Licensed in Minnesota.

Years since qualifying
18
Trained at
University of Minnesota Medical School
Licensed in
MN
In the registry since
2008
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

640 Jackson St Mail Stop 11503G
Saint Paul, MN 55101-2502
Phone: (651) 254-3705
Fax: (651) 254-3123
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physical Medicine & Rehabilitation Physician (primary) Taxonomy 208100000X · Licence 53426 (MN)

Record details

NPI number1376707836
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 14, 2008
Last updated in NPPESNovember 27, 2024
Certification dateNovember 27, 2024

Medicare enrollment

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

Medicare specialtyPHYSICAL MEDICINE AND REHABILITATION
Medical schoolUNIVERSITY OF MINNESOTA MEDICAL SCHOOL
Graduated 2008 (18 years in practice)
Group practice Group Health Plan Inc — 1633 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients124
Services billed 2,328 a service is one billed item, such as a visit, a test or a procedure
Average patient age68

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Also affiliated with 1 inpatient rehabilitation facility, which CMS identifies by certification number only.

Colleagues at Group Health Plan Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1633 clinicians in the practice; 12 are shown here.

Other providers in Saint Paul