Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Amy Haydon-Ryan, BS, PA-C

Physician Assistant in New Haven, CT · enumerated 2008.

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

National Provider Identifier

1598938078

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Registry record

Entity type Individual (Type 1)

Name Amy Haydon-Ryan

Credential BS, PA-C

Sex Female

Practice address 800 Howard Ave Fl 1, New Haven, CT, 06519

Phone (877) 925-3637

Enumeration date Apr 7, 2008

Last updated in NPPES Oct 16, 2020

Taxonomy & licenses

363AM0700X Medical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 175 (CT) Secondary

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 000175 (CT) Primary

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

What is the NPI number for Amy Haydon-Ryan?

The National Provider Identifier (NPI) for Amy Haydon-Ryan is 1598938078, a Type 1 (individual) record in the CMS NPPES registry.

Where does Amy Haydon-Ryan practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-10-16.