Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Leslie Peters Sadler, LCSW
Social Worker in Houlton, ME · enumerated 2016.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1336593540
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Registry record
Entity type Individual (Type 1)
Name Leslie Peters Sadler
Credential LCSW
Sex Female
Practice address 2 Water St, Houlton, ME, 04730
Phone (207) 532-5510
Enumeration date Apr 14, 2016
Last updated in NPPES Jul 17, 2019
Taxonomy & licenses
104100000X Social Worker Behavioral Health & Social Service Providers · License MC16016 (ME) Primary
LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy.
About the LCSW credential
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 Leslie Sadler?
The National Provider Identifier (NPI) for Leslie Sadler is 1336593540, a Type 1 (individual) record in the CMS NPPES registry.
Where does Leslie Sadler practice?
The practice location on file with NPPES is in Houlton, ME. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Lois Goodrich Clinical Social Worker · Houlton, ME NPI 1497961445 Michael Fasulo Clinical Social Worker · Houlton, ME NPI 1740497221 Pamela Glidden Clinical Social Worker · Houlton, ME NPI 1033326871 John Pasquarelli Clinical Social Worker · Houlton, ME NPI 1821207887 Charles Moody Case Manager/Care Coordinator · Houlton, ME NPI 1083824585 Lori Jewell Social Worker · Houlton, ME NPI 1578755153 Franklin Thompson Psychologist · Houlton, ME NPI 1366691461
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-07-17.