NPI Portal NPI Lookup & Verification

Robert E Mcwhirter, M.D.

Robert E Mcwhirter is a Sports Medicine (Orthopaedic Surgery) Physician provider (Orthopaedic Surgery) practicing in Mitchell, SD, registered in the NPPES registry with NPI 1821172917 since 2006. The credential MD stands for Doctor of Medicine.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1821172917
Entity type Individual (Type 1)
Name Robert E Mcwhirter
Credential M.D.
Sex Male
Practice address Mitchell, SD, 57301
Phone 6059967077
Fax 6059960297
Enumeration date 2006-10-25
Last updated in NPPES 2008-05-06

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code Specialty Primary License State
207XX0005X Sports Medicine (Orthopaedic Surgery) Physician Primary 1694 SD

MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
6400430 Medicaid SD
Copy-ready billing details
Provider: Robert Mcwhirter, M.D.
NPI: 1821172917
Taxonomy: 207XX0005X (Sports Medicine (Orthopaedic Surgery) Physician)
Address: Mitchell, SD, 57301

Verify this record

Cross-check NPI 1821172917 against the authoritative CMS record: view Robert E Mcwhirter on the official NPPES registry .

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.

Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Robert Mcwhirter?
Robert Mcwhirter is registered in NPPES with the primary taxonomy of Sports Medicine (Orthopaedic Surgery) Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2008-05-06.