NPPES file of Aug 9, 2026

Gregory M. Clark, LPC CAC MHS

Addiction (Substance Use Disorder) Counselor · Exton, PA

Gregory M. Clark, LPC CAC MHS is an addiction (substance use disorder) counselor with a practice address in Exton, Pennsylvania, and NPI 1649358623, issued on Nov 1, 2006. Check the license (Pennsylvania PC002876, as entered in NPPES) with the Pennsylvania board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1649358623
Name
Gregory M. Clark
Credential
LPC CAC MHS
Primary taxonomy
Addiction (Substance Use Disorder) Counselor 101YA0400X
License number
PC002876 PA
Self-reported in NPPES; status is on the state search
Practice location
479 Thomas Jones Way, Exton, PA 19341
Phone
(610) 648-1130
Enumerated
Nov 1, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(610) 560-8219
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest addiction (substance use disorder) counselor records → All 1,659 in Pennsylvania → Look up another NPI →

Also registered at 479 Thomas Jones Way

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

  1. Karen Archambo, MACounselor1366632481
  2. Diana Atwater, MSS, MLSPSocial Worker1659538064
  3. Willaim Broomall, MASTERS DEGREECounselor1609214741
  4. Lauren Emery, LPCProfessional Counselor1336540137
  5. Elena Gregorio, L.S.W.Social Worker1699037986
  6. Loretta Healy, DDSPediatric Dentistry1841208220

Verify Gregory M. Clark in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
    Search for license PC002876    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 Pennsylvania license search

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Gregory M. Clark among 1,659 addiction (substance use disorder) counselor records in Pennsylvania

Gregory M. Clark, LPC CAC MHS is one of 1,659 addiction (substance use disorder) counselor records with a practice address in Pennsylvania. 1% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than under 1% of them.

  • NPI issued2006 · under 1% of these records are older, 96% newer
  • In a Medicare fileNo · 1% of these records are
  • In the CMS Doctors and Clinicians fileNo · 2% of these records are
  • Record last updated2007 · 69% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 101YA0400X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

24 addiction (substance use disorder) counselor records list a practice address in Exton

They are 24 of the 1,089 NPPES records with a practice address in Exton, and 1,659 addiction (substance use disorder) counselor records in Pennsylvania. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 1,659 in Pennsylvania → Every provider in Exton → Addiction (Substance Use Disorder) Counselor nationwide →

The 8 addiction (substance use disorder) counselor records with the nearest ZIP codes

  1. Sarah CarkinExton, PA 193411205114188
  2. Idris ClymerExton, PA 193411326281551
  3. Damita FisherExton, PA 193411295035269
  4. Alicia Hlywak, MSWExton, PA 193411952489932
  5. Marie KeelyExton, PA 193411235462664
  6. Joanne Lewis, CACExton, PA 193411043398027
  7. Angela LindenExton, PA 193411588734685
  8. Sandra Membrio, CACExton, PA 193411497057830

Common questions

What is Gregory M. Clark, LPC CAC MHS's NPI number?

Gregory M. Clark, LPC CAC MHS's National Provider Identifier (NPI) is 1649358623, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gregory M. Clark, LPC CAC MHS located?

The NPPES record lists a practice address at 479 Thomas Jones Way, Exton, PA, 19341. Phone: (610) 648-1130. Providers update this record themselves, so call before visiting.

How can I verify Gregory M. Clark, LPC CAC MHS's license?

NPPES lists Pennsylvania license number PC002876, as entered by the provider. Search the Pennsylvania 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. 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.