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

Riley Sean Grogan, MD

Individual provider Surgery Physician · NPI 1669935631

Riley Sean Grogan, MD is a General Surgery in Missoula, Montana. Graduated from University of Washington School of Medicine in 2019, 7 years ago. Practices with Providence Health and Services Mt, a 358-clinician group, works from 3 locations, accepts Medicare assignment and offers telehealth. Licensed in Montana and Wisconsin.

Years since qualifying
7
Trained at
University of Washington School of Medicine
Licensed in
MT, WI
In the registry since
2019
Specialties on file
2
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

500 W Broadway St Fl 4BB
Missoula, MT 59802-4008
Phone: (406) 329-5828
Fax: (406) 329-5864
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 169 Ashley Ave Rm 202, Charleston, SC 29425-5429 — (406) 871-3770
  • 1836 South Ave, La Crosse, WI 54601-5429 — (608) 782-7300

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence MED-PHYS-LIC-156377 (MT)
Surgery Physician Taxonomy 208600000X · Licence 74548-20 (WI)

Record details

NPI number1669935631
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 8, 2019
Last updated in NPPESNovember 16, 2025
Certification dateNovember 16, 2025

Medicare enrollment

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

Medicare specialtyGENERAL SURGERY
Medical schoolUNIVERSITY OF WASHINGTON SCHOOL OF MEDICINE
Graduated 2019 (7 years in practice)
Group practice Providence Health And Services Mt — 358 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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