NPPES file of Aug 9, 2026

Tammy Anne Nicholson, LCMHC

Mental Health Counselor · Portsmouth, NH

Tammy Anne Nicholson, LCMHC is a mental health counselor with a practice address in Portsmouth, New Hampshire, and NPI 1891088274, issued on May 18, 2011. Check the license (New Hampshire 1154, as entered in NPPES) with the New Hampshire board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1891088274
Name
Tammy Anne Nicholson
Credential
LCMHC
Primary taxonomy
Mental Health Counselor 101YM0800X
License numbers
1154 NH
8421 MA
Self-reported in NPPES; status is on the state search
Practice location
100 Eileen Dondero Foley Ave Ste 302, Portsmouth, NH 03801
Phone
(603) 883-0005
Enumerated
May 18, 2011
Record last updated
Dec 29, 2025
Medicare enrollment
Enrolled (PECOS I20240228000956); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 100 Eileen Dondero Foley Ave Ste 302

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jordyn Deschene, PSYDClinical Psychologist1629782313
  2. Mara Dutoit, LMFTMarriage & Family Therapist1477147502
  3. Nyla Gardner, PMHNPPsychiatric/Mental Health Nurse Practitioner1639412703
  4. Jennifer Gaudreau, L.I.C.S.W.Clinical Social Worker1417245374
  5. Allie Helfrich, MSMental Health Counselor1417691114
  6. Tracy Kittle, LICSWClinical Social Worker1700501582

Verify Tammy Anne Nicholson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New Hampshire board licenses this profession
    Search for license 1154
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the New Hampshire license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. The Counseling Center OF Nashua IncPortsmouth, NH

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Tammy Anne Nicholson among 2,284 mental health counselor records in New Hampshire

Tammy Anne Nicholson, LCMHC is one of 2,284 mental health counselor records with a practice address in New Hampshire. 12% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 34% of them.

  • NPI issued2011 · 34% of these records are older, 63% newer
  • In a Medicare fileYes · 12% of these records are
  • In the CMS Doctors and Clinicians fileYes · 17% of these records are
  • Graduated2010 · median 2014 among the 379 with a school on file
  • Record last updated2025 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 101YM0800X and a New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

154 mental health counselor records list a practice address in Portsmouth

They are 154 of the 1,860 NPPES records with a practice address in Portsmouth, and 2,284 mental health counselor records in New Hampshire.

The 8 mental health counselor records with the nearest ZIP codes

  1. Ramona Abella, LCMHCPortsmouth, NH 038011134218480
  2. John Burbank, M.ED, LCMHCPortsmouth, NH 038011619041274
  3. David Ceglia, M.ED., LCMHCPortsmouth, NH 038011770657280
  4. Susan Chase, MA IN COUNSELINGPortsmouth, NH 038011760556351
  5. Gretchen Estes, LCMHCPortsmouth, NH 038011174697437
  6. Lisa Gallo, LCMHCNewington, NH 038011366542805
  7. Julie Golkowski, LCMHCPortsmouth, NH 038011164597621
  8. Pamela Henry, M.A.,LCMHCPortsmouth, NH 038011154417566

Common questions

What is Tammy Anne Nicholson, LCMHC's NPI number?

Tammy Anne Nicholson, LCMHC's National Provider Identifier (NPI) is 1891088274, issued on May 18, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Tammy Anne Nicholson, LCMHC located?

The NPPES record lists a practice address at 100 Eileen Dondero Foley Ave Ste 302, Portsmouth, NH, 03801. Phone: (603) 883-0005. Providers update this record themselves, so call before visiting.

How can I verify Tammy Anne Nicholson, LCMHC's license?

NPPES lists New Hampshire license number 1154, as entered by the provider. Search the New Hampshire board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.