Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Michelle Gellman Appelbaum, DNSC, FNP

Family Nurse Practitioner in Middletown, NY · enumerated 2005.

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

National Provider Identifier

1598767097

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Registry record

Entity type Individual (Type 1)

Name Dr. Michelle Gellman Appelbaum

Credential DNSC, FNP

Sex Female

Practice address 111 Maltese Dr, Middletown, NY, 10940

Phone (845) 342-4774

Enumeration date Aug 15, 2005

Last updated in NPPES Aug 30, 2019

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 26NJ00254900 (NJ) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License F330115 (NY) Primary

FNP · Family Nurse Practitioner: A nurse practitioner certified in family practice across the lifespan. About the FNP credential

Other identifiers

Identifier	Type	State	Issuer
03814844	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 1598767097 active?

Yes, as of the latest NPPES snapshot, NPI 1598767097 is active (record last updated 2019-08-30).

How do I verify Michelle Appelbaum's NPI record?

Cross-check NPI 1598767097 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 2019-08-30.