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Robert Sage, M.D.

Dermatology Physician in Rapid City, SD · enumerated 2007 · practices at Rushmore Dermatology, LLP.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1861684748

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Registry record

Entity type Individual (Type 1)
Name Robert Sage
Credential M.D.
Sex Male
Practice address 2820 Mount Rushmore Rd Ste 200, Rapid City, SD, 57701
Phone (605) 608-3376
Fax (605) 608-3550
Enumeration date Aug 14, 2007
Last updated in NPPES May 15, 2026

Taxonomy & licenses

207ND0101X MOHS-Micrographic Surgery Physician Allopathic & Osteopathic Physicians · License 8156 (SD) Secondary
207NS0135X Procedural Dermatology Physician Allopathic & Osteopathic Physicians · License 8156 (SD) Secondary
207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License 8156 (SD) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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.

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Frequently asked questions

How do I verify Robert Sage's NPI record?
Cross-check NPI 1861684748 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1861684748 active?
Yes, as of the latest NPPES snapshot, NPI 1861684748 is active (record last updated 2026-05-15).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-05-15.