Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Louis Trevisan, MD

Psychiatry Physician in Darien, CT · enumerated 2006.

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

National Provider Identifier

1932132867

Verified

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Registry record

Entity type Individual (Type 1)

Name Louis Trevisan

Credential MD

Sex Male

Practice address 17 Old Kings Hwy S, Suite 1-2, Darien, CT, 06820

Phone (203) 655-1559

Fax (203) 655-1914

Enumeration date Jul 7, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 031693 (CT) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Louis Trevisan practice?

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

What is the NPI number for Louis Trevisan?

The National Provider Identifier (NPI) for Louis Trevisan is 1932132867, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Kathleen Africano Psychiatric/Mental Health Nurse Practitioner · Darien, CT NPI 1659300416 Leo Chaikovsky Psychiatry Physician · Darien, CT NPI 1659300465 Victor Patin Psychiatry Physician · Darien, CT NPI 1881623544 Ruth Grant Psychologist · Darien, CT NPI 1891725925 Celeste Pociask Dermatology Physician · Darien, CT NPI 1407903214 Celeste Romig MD PC Dermatology Physician · Darien, CT NPI 1750401360 Geriatric Psychiatry Associates, PC Adult Psychiatric/Mental Health Clinical Nurse Specialist · Darien, CT NPI 1902002561 Geriatric Psychiatry Associates, PC Psychologist · Darien, CT NPI 1275739831

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.