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

William C Dir, MD

Individual provider Internal Medicine Physician · NPI 1376517268

William C Dir, MD is a Critical Care (Intensivists) in Rapid City, South Dakota. Graduated from University of Nebraska College of Medicine in 1998, 28 years ago. Practices with Multicare Health System, a 2,302-clinician group and accepts Medicare assignment. Licensed in Idaho, South Dakota and Washington.

Years since qualifying
28
Trained at
University of Nebraska College of Medicine
Licensed in
ID, SD, WA
In the registry since
2006
Specialties on file
3
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

353 Fairmont Blvd
Rapid City, SD 57701-7375
Phone: (605) 755-1000
Fax: (208) 750-7516
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Critical Care Medicine (Internal Medicine) Physician (primary) Taxonomy 207RC0200X · Licence MD00042788 (WA)
Internal Medicine Physician Taxonomy 207R00000X · Licence M9046 (ID)
Internal Medicine Physician Taxonomy 207R00000X · Licence 9106 (SD)

Record details

NPI number1376517268
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 15, 2006
Last updated in NPPESSeptember 29, 2017
Mailing addressPo Box 3649, Spokane, WA 99220-3649

Medicare enrollment

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

Medicare specialtyCRITICAL CARE (INTENSIVISTS)
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF NEBRASKA COLLEGE OF MEDICINE
Graduated 1998 (28 years in practice)
Group practice Multicare Health System — 2302 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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