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

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1679800957

MS. Susan A. Onderwyzer, LICSW is an Addiction (Substance Use Disorder) Counselor in Exeter, New Hampshire. Practices as a sole proprietor and works from 5 locations. Licensed in New Hampshire and Vermont.

Licensed in
NH, VT
In the registry since
2009
Specialties on file
3
What do these letters mean?
LICSW — Licensed Independent Clinical Social Worker
The title some states use for an independently practising clinical social worker.

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Practice location Address checks out

24 Frnt ST Ste 100
Exeter, NH 03833-2727
Phone: (603) 883-0005
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (4)

  • 15 Old Rollinsford Rd Ste 302, Dover, NH 03820-2819 — (603) 742-9200
  • 77 Gilcreast Rd Ste 3000, Londonderry, NH 03053-3563 — (603) 883-0005
  • 100 Eileen Dondero Foley Ave Ste 302, Portsmouth, NH 03801-4597 — (603) 883-0005
  • 34 Patchen Rd, South Burlington, VT 05403-5704 — (802) 658-4208

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 2117 (NH)
Addiction (Substance Use Disorder) Counselor Taxonomy 101YA0400X · Licence 000180 (VT)
Clinical Social Worker Taxonomy 1041C0700X · Licence 089-0000155 (VT)

Record details

NPI number1679800957
Entity typeIndividual (Type 1)
GenderFemale
Credentials LICSW
Sole proprietorYes
NPI enumeratedNovember 8, 2009
Last updated in NPPESDecember 9, 2024
Certification dateDecember 9, 2024

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