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

MS. Gwendolen Diana Leible Arnzen, L-MHC

Individual provider Mental Health Counselor · NPI 1073792537

MS. Gwendolen Diana Leible Arnzen, L-MHC is a Mental Health Counselor in Southampton, New York. Practices as a sole proprietor. Licensed in New York.

Licensed in
NY
In the registry since
2007

Practice location Address checks out

46 Main St
Southampton, NY 11968-4864
Phone: (631) 786-2566
Show map & directions

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

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X · Licence 001375 (NY)

Record details

NPI number1073792537
Entity typeIndividual (Type 1)
GenderFemale
Credentials L-MHC
Sole proprietorYes
NPI enumeratedOctober 31, 2007
Last updated in NPPESOctober 31, 2007

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