NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Deborah Ann Deierlein, NP

Adult Health Nurse Practitioner in East Setauket, NY · enumerated 2008.

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

National Provider Identifier

1407016777

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Ms. Deborah Ann Deierlein
Credential NP
Sex Female
Practice address 181 Belle Mead Rd, Suite 6, East Setauket, NY, 11733
Fax (631) 444-4276
Enumeration date Jun 11, 2008
Last updated in NPPES Jun 11, 2008

Taxonomy & licenses

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 301059 (NY) Primary
NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Deborah Deierlein practice?
The practice location on file with NPPES is in East Setauket, NY. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Deborah Deierlein?
The National Provider Identifier (NPI) for Deborah Deierlein is 1407016777, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-06-11.