Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John Mallory Nicholson, MD

Child & Adolescent Psychiatry Physician in Hudson Falls, NY · enumerated 2006 · practices at Warren Washington Association for Mental Health, Inc.

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

National Provider Identifier

1992730444

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Registry record

Entity type Individual (Type 1)

Name John Mallory Nicholson

Credential MD

Sex Male

Practice address 3043 State Route 4, Hudson Falls, NY, 12839

Phone (518) 747-2284

Fax (518) 747-2253

Enumeration date Jul 12, 2006

Last updated in NPPES May 19, 2010

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 00126924 (NY) Secondary

2084P0804X Child & Adolescent Psychiatry Physician Allopathic & Osteopathic Physicians · License 00126924 (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
00490944002	Other	-	HEALTHNOW INTEGRATED
10020051	Other	-	CDPHP
53088A	Other	-	MVP
000490944002	Other	-	BLUE SHIELD
00490944002	Other	-	EMPIRE BC/BS BLUE CARD
11123756	Other	-	CAQH
00126924	Medicaid	NY	-
00490944002	Other	-	MEDICARE SENIOR BLUE
00490944002	Other	-	EMPIRE BC/BS
04042601887	Other	-	FIDELIS
8U1371	Other	-	BLUE CROSS

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

What is the NPI number for John Nicholson?

The National Provider Identifier (NPI) for John Nicholson is 1992730444, a Type 1 (individual) record in the CMS NPPES registry.

Where does John Nicholson practice?

The practice location on file with NPPES is in Hudson Falls, NY. 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 2010-05-19.