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

MS. Gwyn Sondike

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1679901029

MS. Gwyn Sondike is a Clinical Social Worker in Mendham, New Jersey. Qualified in 2011, 15 years ago. Practices with Neuropsychology and Counseling Associates, LLC, a 15-clinician group, accepts Medicare assignment and offers telehealth. Licensed in New Jersey.

Years since qualifying
15
Licensed in
NJ
In the registry since
2013
Specialties on file
3
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Practice location Address checks out

80 W Main St
Mendham, NJ 07945-1257
Phone: (973) 543-5656
Fax: (973) 543-1361
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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 · Licence 44SC05688800 (NJ)
Addiction (Substance Use Disorder) Counselor Taxonomy 101YA0400X · Licence 37LC00252400 (NJ)
Behavior Analyst Taxonomy 103K00000X

Record details

NPI number1679901029
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedOctober 23, 2013
Last updated in NPPESMay 25, 2023
Certification dateMay 25, 2023
Mailing address80 W Main St, Mendham, NJ 07945-1257

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 2011 (15 years in practice)
Group practice Neuropsychology And Counseling Associates, Llc — 15 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Mendham