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

Hanni Flaherty LCSW PC

Organization Clinical Social Worker · NPI 1316600323

Hanni Flaherty LCSW PC provides Clinical Social Worker services in New York, New York. Registered with an NPI since 2021.

In the registry since
2021
What do these letters mean?
PC — Professional corporation
A form of business registration, not a clinical qualification.

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Practice location Address checks out

136 Madison Ave Fl 5
New York, NY 10016-6796
Phone: (929) 306-6928
Fax: (929) 419-9061
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X

Record details

NPI number1316600323
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Hanni Flaherty — Founder · (929) 306-6928
Other names Collaborative
NPI enumeratedOctober 17, 2021
Last updated in NPPESMay 8, 2024
Certification dateMay 8, 2024
Mailing address136 Madison Ave Fl 5, New York, NY 10016-6796

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