Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alexis Demopoulos, MD

Neurology Physician in Hartford, CT · enumerated 2006.

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

National Provider Identifier

1336210426

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Registry record

Entity type Individual (Type 1)

Name Alexis Demopoulos

Credential MD

Sex Male

Practice address Cancer Institute, 85 Retreat Avenue, Hartford, CT, 06106

Phone (860) 696-5169

Enumeration date Nov 13, 2006

Last updated in NPPES Mar 4, 2024

Taxonomy & licenses

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 72136 (CT) Secondary

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 211455 (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
2684348	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 Alexis Demopoulos?

The National Provider Identifier (NPI) for Alexis Demopoulos is 1336210426, a Type 1 (individual) record in the CMS NPPES registry.

Where does Alexis Demopoulos practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-03-04.