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

Marcus L Williams, M.D.

Cardiovascular Disease Physician in Fair Lawn, NJ · enumerated 2006.

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

National Provider Identifier

1467526525

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Registry record

Entity type Individual (Type 1)

Name Marcus L Williams

Credential M.D.

Sex Male

Practice address Fair Lawn, NJ, 07410

Phone (551) 246-3008

Fax (201) 703-1100

Enumeration date Nov 20, 2006

Last updated in NPPES Mar 23, 2017

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

Taxonomy & licenses

207RI0011X Interventional Cardiology Physician Allopathic & Osteopathic Physicians · License 25MA06503600 (NJ) Secondary

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License 25MA06503600 (NJ) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
0541281	Medicaid	NJ	-

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

Where does Marcus Williams practice?

The practice location on file with NPPES is in Fair Lawn, NJ. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Marcus Williams?

The National Provider Identifier (NPI) for Marcus Williams is 1467526525, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Mahmud Bangash Vascular Surgery Physician · Fair Lawn, NJ NPI 1073606109 Cardiovascular Associates, P.A Vascular Surgery Physician · Fair Lawn, NJ NPI 1295988616 Inner Vision Services LLC Clinical Social Worker · Fair Lawn, NJ NPI 1447687322 Horizon Cardiology LLC Cardiovascular Disease Physician · Fair Lawn, NJ NPI 1043762461

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-03-23.