Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Leanne Michelle Forman, MD

Internal Medicine Physician in Valhalla, NY · enumerated 2006.

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

National Provider Identifier

1023173747

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Registry record

Entity type Individual (Type 1)

Name Dr. Leanne Michelle Forman

Credential MD

Sex Female

Practice address Westchester Medical Center, Grasslands Road, Cedarwood Hall Occupational Health, Valhalla, NY, 10595

Phone (914) 493-5140

Fax (914) 493-7359

Enumeration date Dec 22, 2006

Last updated in NPPES Jan 30, 2009

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 192473 (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
01837916	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

Where does Leanne Forman practice?

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

What is the NPI number for Leanne Forman?

The National Provider Identifier (NPI) for Leanne Forman is 1023173747, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-01-30.