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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Michael Siman, LSW

Social Worker in Montgomery, OH · enumerated 2026.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1871449876

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Registry record

Entity type Individual (Type 1)
Name Michael Siman
Credential LSW
Sex Male
Practice address Montgomery, OH, 45249
Phone (513) 800-6787
Enumeration date Mar 10, 2026
Last updated in NPPES Mar 10, 2026

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers 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.

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Frequently asked questions

What is the NPI number for Michael Siman?
The National Provider Identifier (NPI) for Michael Siman is 1871449876, a Type 1 (individual) record in the CMS NPPES registry.
Where does Michael Siman practice?
The practice location on file with NPPES is in Montgomery, OH. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-10.