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

William Jackson Mann

Individual provider Mental Health Counselor · NPI 1316894603

William Jackson Mann is a Mental Health Counselor in Brooklyn, New York. Practices as a sole proprietor. Registered with an NPI since 2026.

In the registry since
2026

Practice location Address checks out

367 Saint Marks Ave # 1068
Brooklyn, NY 11238-2268
Phone: (134) 723-4500
Fax: (332) 334-3017
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X

Record details

NPI number1316894603
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedMarch 14, 2026
Last updated in NPPESMarch 14, 2026
Certification dateMarch 14, 2026

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