Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Markus T Douglas, LSW
Social Worker in Austintown, OH · enumerated 2011.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1881970531
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Registry record
Entity type Individual (Type 1)
Name Markus T Douglas
Credential LSW
Sex Male
Practice address 136 Westchester Dr, Austintown, OH, 44515
Phone (330) 270-1400
Fax (330) 270-1404
Enumeration date Oct 26, 2011
Last updated in NPPES Oct 26, 2011
Taxonomy & licenses
104100000X Social Worker Behavioral Health & Social Service Providers · License S.0026089 (OH) Primary
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
Where does Markus Douglas practice?
The practice location on file with NPPES is in Austintown, OH. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Markus Douglas?
The National Provider Identifier (NPI) for Markus Douglas is 1881970531, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-10-26.