Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Robert Francis Butler, MD

Dermatology Physician in Silverdale, WA · enumerated 2005.

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

National Provider Identifier

1558352518

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Registry record

Entity type Individual (Type 1)

Name Dr. Robert Francis Butler

Credential MD

Sex Male

Practice address 10452 Silverdale Way Nw, Silverdale, WA, 98383

Phone (360) 307-7300

Fax (360) 307-7304

Enumeration date Oct 31, 2005

Last updated in NPPES May 19, 2021

Taxonomy & licenses

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License MD00047166 (WA) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Robert Butler?

Robert Butler is registered in NPPES with the primary taxonomy of Dermatology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-05-19.