Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Stefanie Mantalvanos
Behavior Analyst in Astoria, NY · enumerated 2008.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1285887349
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Registry record
Entity type Individual (Type 1)
Name Mrs. Stefanie Mantalvanos
Sex Female
Practice address 3711 35th Ave, Astoria, NY, 11101
Phone (718) 706-7500
Fax (718) 706-9595
Enumeration date Nov 2, 2008
Last updated in NPPES Nov 2, 2008
Taxonomy & licenses
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.
Frequently asked questions
Is NPI 1285887349 active?
Yes, as of the latest NPPES snapshot, NPI 1285887349 is active (record last updated 2008-11-02).
How do I verify Stefanie Mantalvanos's NPI record?
Cross-check NPI 1285887349 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all → Joanna Wong Physical Therapist · Astoria, NY NPI 1477706919 Elizabeth Symeonides Speech-Language Pathologist · Astoria, NY NPI 1952555443 Kathleen Kielczewski Speech-Language Pathologist · Long Island City, NY NPI 1245484633 Dionne Dixon Occupational Therapist · Astoria, NY NPI 1104069426 Dalia Avezbadalov Speech-Language Pathologist · Astoria, NY NPI 1023377983 Elizabeth Perez Specialist · Astoria, NY NPI 1225390578 Henry Cruz Case Manager/Care Coordinator · Astoria, NY NPI 1942563556 Ina D'Aleo Specialist · Long Island City, NY NPI 1750645354
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-11-02.