Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jason Sandler

Family Nurse Practitioner in Norwalk, CT · enumerated 2015.

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

National Provider Identifier

1235507955

Verified

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Registry record

Entity type Individual (Type 1)

Name Jason Sandler

Sex Male

Practice address 497 Westport Ave Ste 300, Norwalk, CT, 06851

Phone (203) 852-3494

Fax (203) 847-0013

Enumeration date Sep 11, 2015

Last updated in NPPES Feb 14, 2019

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 6139 (CT) Primary

Other identifiers

Identifier	Type	State	Issuer
008062105	Medicaid	CT	-

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

Is NPI 1235507955 active?

Yes, as of the latest NPPES snapshot, NPI 1235507955 is active (record last updated 2019-02-14).

How do I verify Jason Sandler's NPI record?

Cross-check NPI 1235507955 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-02-14.