Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Gregory Siwek, MD

Individual provider Infectious Disease Physician · NPI 1437125317

Gregory Siwek, MD is registered under Infectious Disease in Saint Paul, Minnesota. Graduated from Rowan University School of Osteopathic Medicine in 1999, 27 years ago. Practices with Group Health Plan Inc, a 1,633-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Minnesota.

Years since qualifying
27
Trained at
Rowan University School of Osteopathic Medicine
Licensed in
MN
In the registry since
2006
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

401 Phalen Blvd
Saint Paul, MN 55130-5302
Phone: (651) 254-7820
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Infectious Disease Physician (primary) Taxonomy 207RI0200X · Licence 43054 (MN)

Record details

NPI number1437125317
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 28, 2006
Last updated in NPPESJune 20, 2024
Certification dateJune 20, 2024

Medicare enrollment

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

Medicare specialtyINFECTIOUS DISEASE
Medical schoolROWAN UNIVERSITY SCHOOL OF OSTEOPATHIC MEDICINE
Graduated 1999 (27 years in practice)
Group practice Group Health Plan Inc — 1633 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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 patients198
Services billed 749 a service is one billed item, such as a visit, a test or a procedure
Average patient age66

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.

  • Regions Hospital Hospital · Saint Paul, MN
  • Amery Hospital & Clinic Hospital · Amery, WI

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