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

Dr. Viswanath Parameswar Vasudevan, M.D

Critical Care Medicine (Internal Medicine) Physician in Roslyn Heights, NY · enumerated 2005.

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

National Provider Identifier

1558357558

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Registry record

Entity type Individual (Type 1)

Name Dr. Viswanath Parameswar Vasudevan

Credential M.D

Sex Male

Practice address Roslyn Heights, NY, 11577

Phone (516) 484-2160

Fax (516) 484-5681

Enumeration date Sep 25, 2005

Last updated in NPPES Aug 15, 2013

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

Taxonomy & licenses

207RC0200X Critical Care Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 142946 (NY) 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
01299256	Medicaid	NY	-

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 Viswanath Vasudevan?

The National Provider Identifier (NPI) for Viswanath Vasudevan is 1558357558, a Type 1 (individual) record in the CMS NPPES registry.

Where does Viswanath Vasudevan practice?

The practice location on file with NPPES is in Roslyn Heights, NY. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-08-15.