Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Alexander P Hatsis, MD

Ophthalmology Physician in Rockville Centre, NY · enumerated 2006.

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

National Provider Identifier

1396817144

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Registry record

Entity type Individual (Type 1)

Name Dr. Alexander P Hatsis

Credential MD

Sex Male

Practice address 2 Lincoln Ave, Ste 401, Rockville Centre, NY, 11570

Phone (516) 763-4106

Fax (516) 763-5216

Enumeration date Nov 15, 2006

Last updated in NPPES Sep 22, 2011

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 140263 (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
26844P	Other	NY	HIP
AS705	Other	NY	OXFORD
0076762	Medicaid	NY	-
60796	Other	NY	AETNA
HA791157	Other	-	GHI
6539428	Other	NY	CIGNA

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 Alexander Hatsis?

The National Provider Identifier (NPI) for Alexander Hatsis is 1396817144, a Type 1 (individual) record in the CMS NPPES registry.

Where does Alexander Hatsis practice?

The practice location on file with NPPES is in Rockville Centre, 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 2011-09-22.