Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Maria Russo-Appel, M.D.

Psychiatry Physician in Westport, CT · enumerated 2006 · practices at Hall-Brooke Behavioral Health Services, Inc..

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

National Provider Identifier

1518050699

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Registry record

Entity type Individual (Type 1)

Name Dr. Maria Russo-Appel

Credential M.D.

Sex Female

Practice address 47 Long Lots Rd, Westport, CT, 06880

Phone (203) 227-1251

Fax (203) 226-8616

Enumeration date Oct 2, 2006

Last updated in NPPES Jan 29, 2024

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 39949 (CT) Secondary

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 218373 (MA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 Maria Russo-Appel practice?

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

What is the NPI number for Maria Russo-Appel?

The National Provider Identifier (NPI) for Maria Russo-Appel is 1518050699, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-01-29.