Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Melissa Leah Blok, LMSW
Social Worker in Guilderland, NY · enumerated 2025.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1164221792
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Registry record
Entity type Individual (Type 1)
Name Melissa Leah Blok
Credential LMSW
Sex Female
Practice address 2280 Western Ave, Guilderland, NY, 12084
Phone (518) 456-5056
Enumeration date Mar 7, 2025
Last updated in NPPES Mar 7, 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
What is the NPI number for Melissa Blok?
The National Provider Identifier (NPI) for Melissa Blok is 1164221792, a Type 1 (individual) record in the CMS NPPES registry.
Where does Melissa Blok practice?
The practice location on file with NPPES is in Guilderland, NY. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Julie Lloyd Social Worker · Guilderland, NY NPI 1437138880 Karner Psychological Associates PC Psychologist · Guilderland, NY NPI 1619913258 Joan Stapleton Social Worker · Guilderland, NY NPI 1699705186 William Knauer Social Worker · Guilderland, NY NPI 1881616811 W Mooney Psychologist · Guilderland, NY NPI 1790883247 John Kowalski Psychologist · Guilderland, NY NPI 1316045727 Stephen Phelps Psychologist · Guilderland, NY NPI 1851488357 June Morier Social Worker · Guilderland, NY NPI 1245327758
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-07.