Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Abigail Sophia Mortenson

Specialist in East Setauket, NY · enumerated 2024.

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

National Provider Identifier

1750119038

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Registry record

Entity type Individual (Type 1)

Name Abigail Sophia Mortenson

Sex Female

Practice address 14 Research Way, East Setauket, NY, 11733

Phone (631) 331-6400

Enumeration date Jul 26, 2024

Last updated in NPPES Jul 26, 2024

Taxonomy & licenses

174400000X Specialist Other Service Providers 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.

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Frequently asked questions

What specialty is Abigail Mortenson?

Abigail Mortenson is registered in NPPES with the primary taxonomy of Specialist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

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Nancy Quinn Specialist · East Setauket, NY NPI 1346388766 Karen O'Hagen Physical Therapist · East Setauket, NY NPI 1285772814 Danielle Mcgovern Occupational Therapist · East Setauket, NY NPI 1598806812 Kelly Mc Kenna Pediatric Occupational Therapist · East Setauket, NY NPI 1144361346 Patricia D'Amico Speech-Language Pathologist · East Setauket, NY NPI 1801937024 Theresa Connolly Occupational Therapist · East Setauket, NY NPI 1457492647 Laura Baisch Physical Therapist · East Setauket, NY NPI 1831230838 Trisha Bernhardt Speech-Language Pathologist · Setauket, NY NPI 1295876209

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-07-26.