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

Mrs. Tammy Anne Nicholson, LCMHC

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1891088274

Mrs. Tammy Anne Nicholson, LCMHC is a Mental Health Counselor in Portsmouth, New Hampshire. Qualified in 2010, 16 years ago. Practices with The Counseling Center of Nashua Inc, a 240-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Massachusetts and New Hampshire.

Years since qualifying
16
Licensed in
MA, NH
In the registry since
2011
Specialties on file
2
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Practice location Address checks out

100 Eileen Dondero Foley Ave Ste 302
Portsmouth, NH 03801-4597
Phone: (603) 883-0005
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 76 Winter St, Haverhill, MA 01830-5760 — (978) 373-1181
  • 16 Fifth St, Dover, NH 03820-2930 — (603) 883-0005

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X · Licence 1154 (NH)
Addiction (Substance Use Disorder) Counselor Taxonomy 101YA0400X · Licence 8421 (MA)

Record details

NPI number1891088274
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCMHC
Sole proprietorNo
NPI enumeratedMay 18, 2011
Last updated in NPPESDecember 29, 2025
Certification dateDecember 29, 2025

Medicare enrollment

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

Medicare specialtyMENTAL HEALTH COUNSELOR
Medical schoolOTHER
Graduated 2010 (16 years in practice)
Group practice The Counseling Center Of Nashua Inc — 240 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Portsmouth