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

Liam M Duffy, MD

Individual provider Otolaryngology Physician · NPI 1902369820

Liam M Duffy, MD is an Otolaryngology in Rapid City, South Dakota. Graduated from Sanford School of Medicine of University of South Dakota in 2019, 7 years ago. Practices with Monument Health Rapid City Hospital Inc, a 561-clinician group and accepts Medicare assignment. Licensed in South Dakota.

Years since qualifying
7
Trained at
Sanford School of Medicine of University of South Dakota
Licensed in
SD
In the registry since
2019
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

353 Fairmont Blvd
Rapid City, SD 57701-7375
Phone: (605) 755-1000
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Otolaryngology Physician (primary) Taxonomy 207Y00000X · Licence 15720 (SD)

Record details

NPI number1902369820
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 8, 2019
Last updated in NPPESSeptember 3, 2024
Certification dateSeptember 3, 2024
Mailing address353 Fairmont Blvd, Rapid City, SD 57701-7375

Medicare enrollment

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

Medicare specialtyOTOLARYNGOLOGY
Medical schoolSANFORD SCHOOL OF MEDICINE OF UNIVERSITY OF SOUTH DAKOTA
Graduated 2019 (7 years in practice)
Group practice Monument Health Rapid City Hospital Inc — 561 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Rapid City