Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Adeniyi Fisayo, M.D.

Neurology Physician in North Haven, CT · enumerated 2010.

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

National Provider Identifier

1164741260

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Registry record

Entity type Individual (Type 1)

Name Adeniyi Fisayo

Credential M.D.

Sex Male

Practice address 6 Devine St, Suite 2b, Yale Neurology, North Haven, CT, 06473

Phone (203) 785-5602

Fax (203) 737-6375

Enumeration date May 28, 2010

Last updated in NPPES Jul 17, 2015

Taxonomy & licenses

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 071495 (GA) Secondary

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License MD450317 (PA) Secondary

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 53929 (CT) 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 Adeniyi Fisayo?

Adeniyi Fisayo 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.

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.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-07-17.