Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Mainsail Therapeutics LLC

Organization Behavior Analyst · NPI 1104464916

Mainsail Therapeutics LLC is a Behavior Analyst in Chicago, Illinois. Registered with an NPI since 2019.

In the registry since
2019
What do these letters mean?
LLC — Limited liability company
A form of business registration, not a clinical qualification.

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Practice location Address checks out

2551 N Clark St Ste 800
Chicago, IL 60614-4984
Phone: (312) 257-8550
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Behavior Analyst (primary) Taxonomy 103K00000X

Record details

NPI number1104464916
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Seth Franz — Ceo · (217) 246-0714
NPI enumeratedDecember 12, 2019
Last updated in NPPESDecember 12, 2019
Certification dateDecember 12, 2019
Mailing address333 N Oak Park Ave, Oak Park, IL 60302-2120

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