Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michelle Sorscher

Pediatric Nurse Practitioner in New York, NY · enumerated 2006 · practices at Mount Sinai Medical Center.

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

National Provider Identifier

1639230691

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Registry record

Entity type Individual (Type 1)

Name Michelle Sorscher

Sex Female

Practice address 1450 Madison Ave, Box 1136, New York, NY, 10029

Phone (212) 241-3400

Fax (646) 537-2299

Enumeration date Dec 13, 2006

Last updated in NPPES Oct 17, 2014

Taxonomy & licenses

363LP0200X Pediatric Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 381347 (NY) Primary

Other identifiers

Identifier	Type	State	Issuer
8914508	Medicaid	NJ	-
1639230691	Medicaid	NY	-

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 1639230691 active?

Yes, as of the latest NPPES snapshot, NPI 1639230691 is active (record last updated 2014-10-17).

How do I verify Michelle Sorscher's NPI record?

Cross-check NPI 1639230691 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-10-17.