NPPES file of Aug 9, 2026

Patrick S. Griswold, LMHC, LADC 1

Addiction (Substance Use Disorder) Counselor · Somerville, MA

Patrick S. Griswold, LMHC, LADC 1 is an addiction (substance use disorder) counselor with a practice address in Somerville, Massachusetts, and NPI 1639259146, issued on Oct 17, 2006. Check the license (Massachusetts 169, as entered in NPPES) with the Massachusetts 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
1639259146
Name
Patrick S. Griswold
Credential
LMHC, LADC 1
Primary taxonomy
Addiction (Substance Use Disorder) Counselor 101YA0400X
License numbers
169 MA
3993 MA
Self-reported in NPPES; status is on the state search
Practice location
260 Beacon St, Somerville, MA 02143
Phone
(617) 661-5700
Enumerated
Oct 17, 2006
Record last updated
Sep 11, 2025
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 2,375 in Massachusetts → Look up another NPI →

Also registered at 260 Beacon St

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

  1. Sara Antani, M.A., ED.MMental Health Counselor1528394160
  2. Sarah AveryAddiction (Substance Use Disorder) Counselor1538350558
  3. Floriana BicchieriLicensed Practical Nurse1356598296
  4. Johnnie Bloom, LPNLicensed Practical Nurse1659456952
  5. Timothy CaseyAddiction (Substance Use Disorder) Counselor1235251380
  6. Claire ElwynMental Health Counselor1760882492

Verify Patrick S. Griswold in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license 169    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 Massachusetts 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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Patrick S. Griswold among 2,375 addiction (substance use disorder) counselor records in Massachusetts

Patrick S. Griswold, LMHC, LADC 1 is one of 2,375 addiction (substance use disorder) counselor records with a practice address in Massachusetts. 2% 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 · 2% of these records are
  • In the CMS Doctors and Clinicians fileNo · 4% of these records are
  • Record last updated2025 · 62% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

27 addiction (substance use disorder) counselor records list a practice address in Somerville

They are 27 of the 1,860 NPPES records with a practice address in Somerville, and 2,375 addiction (substance use disorder) counselor records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 2,375 in Massachusetts → Every provider in Somerville → Addiction (Substance Use Disorder) Counselor nationwide →

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

  1. Sarah AverySomerville, MA 021431538350558
  2. Elaine Blake, LCSWSomerville, MA 021431033759006
  3. Timothy CaseySomerville, MA 021431235251380
  4. Sonya DohertySomerville, MA 021431225983463
  5. Erin GreySomerville, MA 021431437408333
  6. Janice Kauffman, RN, LADCSomerville, MA 021431366520348
  7. Rivkah LapidusSomerville, MA 021431316137219
  8. Timothy QuinonesSomerville, MA 021431013178540

Common questions

What is Patrick S. Griswold, LMHC, LADC 1's NPI number?

Patrick S. Griswold, LMHC, LADC 1's National Provider Identifier (NPI) is 1639259146, issued on Oct 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Patrick S. Griswold, LMHC, LADC 1 located?

The NPPES record lists a practice address at 260 Beacon St, Somerville, MA, 02143. Phone: (617) 661-5700. Providers update this record themselves, so call before visiting.

How can I verify Patrick S. Griswold, LMHC, LADC 1's license?

NPPES lists Massachusetts license number 169, as entered by the provider. Search the Massachusetts 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.