Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Melissa D Gennarelli, M.D.

Internal Medicine Physician in Valhalla, NY · enumerated 2006.

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

National Provider Identifier

1871557249

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Registry record

Entity type Individual (Type 1)

Name Dr. Melissa D Gennarelli

Credential M.D.

Sex Female

Practice address 95 Grasslands Rd, Dept of Medicine-Munger Pavilion, Valhalla, NY, 10595

Phone (914) 493-8370

Fax (914) 594-4434

Enumeration date Apr 13, 2006

Last updated in NPPES Feb 29, 2008

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 220108 (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
2590434	Other	NY	GHI CBP,PPO
P00071800	Other	NY	RAILROAD MEDICARE
02501173	Medicaid	NY	-
3838586	Other	NY	AETNA HMO
P3016812	Other	NY	OXFORD
00000078658	Other	NY	GHI HMO
4C9946	Other	NY	HEALTHNET
GM0108	Other	NY	ATLANTIS
411944	Other	NY	MVP
7092521	Other	NY	AETNA PPO

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.

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Frequently asked questions

Where does Melissa Gennarelli 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 Melissa Gennarelli?

The National Provider Identifier (NPI) for Melissa Gennarelli is 1871557249, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Theodore Rafael Diagnostic Radiology Physician · Valhalla, NY NPI 1740283233 Gregory Adkisson Anesthesiology Physician · Valhalla, NY NPI 1184621047 Alan Pinto Pediatric Critical Care Medicine Physician · Valhalla, NY NPI 1619978525 Gary Tatz Pediatric Critical Care Medicine Physician · Valhalla, NY NPI 1386645125 Edmund Lagamma Neonatal-Perinatal Medicine Physician · Valhalla, NY NPI 1689676678 Zaheer Gill Neonatal-Perinatal Medicine Physician · Valhalla, NY NPI 1922000843 Abdul Haleem Neonatal-Perinatal Medicine Physician · Valhalla, NY NPI 1104828862 Muhammad Zia Neonatal-Perinatal Medicine Physician · Valhalla, NY NPI 1750383402

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-02-29.