Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Denise Syndee Wittlin-Horvath, LCSW-R, RN, NPP

Psychiatric/Mental Health Nurse Practitioner in Ithaca, NY · enumerated 2007.

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

National Provider Identifier

1417006818

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Registry record

Entity type Individual (Type 1)

Name Denise Syndee Wittlin-Horvath

Credential LCSW-R, RN, NPP

Sex Female

Practice address Ithaca, NY, 14850

Phone (607) 256-1167

Enumeration date Jan 9, 2007

Last updated in NPPES Mar 10, 2008

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 069855 (NY) Secondary

163W00000X Registered Nurse Nursing Service Providers · License 568571 (NY) Secondary

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License F40117-1 (NY) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN credential

Other identifiers

Identifier	Type	State	Issuer
069855	Other	NY	LCSW
40117-1	Other	NY	NURSE PRACTITIONER PSYCH
568571	Other	NY	LIC. PROF. NURSE

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 Denise Wittlin-Horvath?

Denise Wittlin-Horvath is registered in NPPES with the primary taxonomy of Psychiatric/Mental Health Nurse Practitioner. 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-03-10.