Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Sylvanus A Ayeni, MD

Neurological Surgery Physician in Silver Spring, MD · enumerated 2006.

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

National Provider Identifier

1891883054

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Registry record

Entity type Individual (Type 1)

Name Sylvanus A Ayeni

Credential MD

Sex Male

Practice address Silver Spring, MD, 20910

Phone (301) 588-4460

Fax (301) 588-6053

Enumeration date Oct 11, 2006

Last updated in NPPES Mar 17, 2008

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

Taxonomy & licenses

207T00000X Neurological Surgery Physician Allopathic & Osteopathic Physicians · License MD20278 (DC) Secondary

207T00000X Neurological Surgery Physician Allopathic & Osteopathic Physicians · License D00481202 (MD) 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 is the NPI number for Sylvanus Ayeni?

The National Provider Identifier (NPI) for Sylvanus Ayeni is 1891883054, a Type 1 (individual) record in the CMS NPPES registry.

Where does Sylvanus Ayeni practice?

The practice location on file with NPPES is in Silver Spring, MD. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-03-17.