NPPES file of Aug 9, 2026

Nathaniel P. Clark, LCPC-C

Professional Counselor · Portland, ME

Nathaniel P. Clark, LCPC-C is a professional counselor with a practice address in Portland, Maine, and NPI 1891155792, issued on Mar 4, 2016. Check the license (Maine CC5420, as entered in NPPES) with the Maine 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
1891155792
Name
Nathaniel P. Clark
Credential
LCPC-C
Primary taxonomy
Professional Counselor 101YP2500X
License numbers
CC5420 ME
XL4658 ME
Self-reported in NPPES; status is on the state search
Practice location
11 Baxter Blvd, Portland, ME 04101
Phone
(207) 774-8700
Enumerated
Mar 4, 2016
Record last updated
Jan 9, 2024
Fax
(207) 422-7268
Medicare enrollment
Enrolled (PECOS I20240321000350); 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.
Download card Updates feed

8 nearest professional counselor records → All 1,069 in Maine → Look up another NPI →

Also registered at 11 Baxter Blvd

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

  1. Dal Dumars, LCPCProfessional Counselor1992285001
  2. Chelsea Dunton, PMHNPPsychiatric/Mental Health Nurse Practitioner1285354951
  3. Nicole Firth, LCSWClinical Social Worker1093149106
  4. Jennifer Kelley-Young, LADCAddiction (Substance Use Disorder) Counselor1164766200
  5. Jacob Lapierre, LCSWClinical Social Worker1093234270
  6. Debra Ouimette, PHD, LADC, CASAC,SAPAddiction (Substance Use Disorder) Counselor1346452646

Verify Nathaniel P. Clark in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Maine board licenses this profession
    Search for license CC5420    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 Maine 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Bills Medicare through 2 group practices

  1. Health Affiliates Maine, LLCAuburn, ME
  2. The Counseling Center OF Nashua IncPortland, ME

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

Nathaniel P. Clark among 1,069 professional counselor records in Maine

Nathaniel P. Clark, LCPC-C is one of 1,069 professional counselor records with a practice address in Maine. 14% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 68% of them.

  • NPI issued2016 · 68% of these records are older, 29% newer
  • In a Medicare fileYes · 14% of these records are
  • In the CMS Doctors and Clinicians fileYes · 20% of these records are
  • Graduated2012 · median 2012 among the 212 with a school on file
  • Record last updated2024 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 101YP2500X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

163 professional counselor records list a practice address in Portland

They are 163 of the 6,022 NPPES records with a practice address in Portland, and 1,069 professional counselor records in Maine.

All 1,069 in Maine → Every provider in Portland → Professional Counselor nationwide →

The 8 professional counselor records with the nearest ZIP codes

  1. Kindra Bernard, LCPCPortland, ME 041011619080132
  2. Terry Devlin, LCPCPortland, ME 041011912962515
  3. Thomas Fitzgerald, M.EDPortland, ME 041011144391954
  4. Tonya Guyton-Thompson, LCPC, LPC, NCC, CETPortland, ME 041011699977827
  5. Scott Hutcherson, LCPCPortland, ME 041011003944851
  6. A. Kraft, MAPortland, ME 041011811959109
  7. Laura Mazikowski, LCPCPortland, ME 041011174698690
  8. Mary Montgomery, LCPCPortland, ME 041011184828063

Common questions

What is Nathaniel P. Clark, LCPC-C's NPI number?

Nathaniel P. Clark, LCPC-C's National Provider Identifier (NPI) is 1891155792, issued on Mar 4, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Nathaniel P. Clark, LCPC-C located?

The NPPES record lists a practice address at 11 Baxter Blvd, Portland, ME, 04101. Phone: (207) 774-8700. Providers update this record themselves, so call before visiting.

How can I verify Nathaniel P. Clark, LCPC-C's license?

NPPES lists Maine license number CC5420, as entered by the provider. Search the Maine 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.