Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Alexander Robin Nicholas Westphal, M.D.

Psychiatry Physician in New Haven, CT · enumerated 2007.

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

National Provider Identifier

1346431657

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Registry record

Entity type Individual (Type 1)

Name Dr. Alexander Robin Nicholas Westphal

Credential M.D.

Sex Male

Practice address New Haven, CT, 06519

Phone (203) 285-8708

Fax (203) 785-7400

Enumeration date Aug 5, 2007

Last updated in NPPES Aug 6, 2013

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 045679 (CT) Primary

2084P0804X Child & Adolescent Psychiatry Physician Allopathic & Osteopathic Physicians · License 045679 (CT) Secondary

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 Alexander Westphal practice?

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

What is the NPI number for Alexander Westphal?

The National Provider Identifier (NPI) for Alexander Westphal is 1346431657, 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 2013-08-06.