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Dr. Brian D. Karsif, M.D.

Addiction Medicine (Preventive Medicine) Physician in New Haven, CT · enumerated 2007.

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

National Provider Identifier

1700922846

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Registry record

Entity type Individual (Type 1)
Name Dr. Brian D. Karsif
Credential M.D.
Sex Male
Practice address 915 Ella T Grasso Blvd, New Haven, CT, 06519
Phone (203) 349-9400
Fax (475) 331-6317
Enumeration date Jan 29, 2007
Last updated in NPPES Feb 15, 2024

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 027141 (CT) Secondary
2083A0300X Addiction Medicine (Preventive Medicine) Physician Allopathic & Osteopathic Physicians · License 027141 (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.

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Frequently asked questions

What is the NPI number for Brian Karsif?
The National Provider Identifier (NPI) for Brian Karsif is 1700922846, a Type 1 (individual) record in the CMS NPPES registry.
Where does Brian Karsif practice?
The practice location on file with NPPES is in New Haven, CT. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-02-15.