Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Douglas Mitchell Brandt, M.D.

Psychiatry Physician in Old Saybrook, CT · enumerated 2006.

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

National Provider Identifier

1487742243

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Registry record

Entity type Individual (Type 1)

Name Douglas Mitchell Brandt

Credential M.D.

Sex Male

Practice address 20 Research Pkwy, Old Saybrook, CT, 06475

Phone (800) 370-3651

Fax (860) 510-0020

Enumeration date Oct 10, 2006

Last updated in NPPES Mar 26, 2025

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 17778 (SC) Secondary

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License MD13289 (RI) Secondary

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 025691 (CT) 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
1256917CL	Other	-	CLINIC NUMBER
4014679	Medicaid	CT	-
4024972	Medicaid	CT	-

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 Douglas Brandt practice?

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

What is the NPI number for Douglas Brandt?

The National Provider Identifier (NPI) for Douglas Brandt is 1487742243, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-26.