Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Robert A.E. Summerfield, M.D.

Neurology Physician in Layton, UT · enumerated 2005.

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

National Provider Identifier

1215919659

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Registry record

Entity type Individual (Type 1)

Name Robert A.E. Summerfield

Credential M.D.

Sex Male

Practice address 2121 N 1700 W, Layton, UT, 84041

Phone (801) 773-4840

Fax (801) 525-8151

Enumeration date Nov 18, 2005

Last updated in NPPES Jul 3, 2018

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 5157305-1205 (UT) Secondary

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 51757305-1205 (UT) 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

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 Summerfield?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-07-03.