Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Thomas Klapper
Counselor in Rockville Centre, NY · enumerated 2025.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1558222844
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Registry record
Entity type Individual (Type 1)
Name Thomas Klapper
Sex Male
Practice address 55 Front St Ste 7, Rockville Centre, NY, 11570
Phone (516) 476-9057
Fax (212) 877-5504
Enumeration date Nov 18, 2025
Last updated in NPPES Nov 18, 2025
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
How do I verify Thomas Klapper's NPI record?
Cross-check NPI 1558222844 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1558222844 active?
Yes, as of the latest NPPES snapshot, NPI 1558222844 is active (record last updated 2025-11-18).
Other providers at this practice address
Browse all → Cassandra Muldoon Mental Health Counselor · Rockville Centre, NY NPI 1194572461 Yuleidi Rodriguez Mental Health Counselor · Rockville Centre, NY NPI 1518833607 Jihane Khachab Mental Health Counselor · Rockville Centre, NY NPI 1740156736 Lauren Kahn Mental Health Counselor · Rockville Centre, NY NPI 1194691238 Madison Digiacomo Mental Health Counselor · Rockville Centre, NY NPI 1265308431 Leandrew Aponte Mental Health Counselor · Rockville Centre, NY NPI 1528934684
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-11-18.