William Callahan
Addiction (Substance Use Disorder) Counselor · Plymouth, MA
William Callahan is an addiction (substance use disorder) counselor with a practice address in Plymouth, Massachusetts, and NPI 1649136193, issued on Dec 29, 2025. Check the license with the Massachusetts board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- William Callahan
- Primary taxonomy
- Addiction (Substance Use Disorder) Counselor 101YA0400X
- Practice location
- 61 Industrial Park RD, Plymouth, MA 02360
- Phone
- (508) 689-5576
- Enumerated
- Dec 29, 2025
- Record last updated
- Dec 29, 2025
- Entity
- Type 1 · individual
Also registered at 61 Industrial Park RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Patricia Benner, MSMental Health Counselor1245392901
- Donald Boisvert, LADC IIAddiction (Substance Use Disorder) Counselor1295544211
- Joel BrooksCase Manager/Care Coordinator1366373516
- Tamara BurroughsAddiction (Substance Use Disorder) Counselor1578336582
- Jessica BushmanPhysician Assistant1457943391
- Morgan Callahan, BAAddiction (Substance Use Disorder) Counselor1720840671
Verify William Callahan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
70 addiction (substance use disorder) counselor records list a practice address in Plymouth
They are 70 of the 1,954 NPPES records with a practice address in Plymouth, 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 70 in Plymouth → All 2,375 in Massachusetts → Every provider in Plymouth →
Other addiction (substance use disorder) counselor records in Massachusetts
- William AbbatePlymouth, MA1568013944
- Brianna Abbott, LMHC LADC1Springfield, MA1225503725
- Erik AbelWoburn, MA1295163822
- Kimberly AbissoLynn, MA1588206403
- Elonzo Abraham, M.ED, CACIBoston, MA1609189760
- Heidi AbramsBrewster, MA1245332048
- Maury AbramsEasthampton, MA1629096649
- Jose Abreu, BALowell, MA1063531424
- Kelli AccardiLawrence, MA1023417813
- Nicholas AcquadroWoburn, MA1346851532
Common questions
What is William Callahan's NPI number?
William Callahan's National Provider Identifier (NPI) is 1649136193, issued on Dec 29, 2025. An NPI identifies a provider in billing; it is not a license.
Where is William Callahan located?
The NPPES record lists a practice address at 61 Industrial Park RD, Plymouth, MA, 02360. Phone: (508) 689-5576. Providers update this record themselves, so call before visiting.
How can I verify William Callahan's license?
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.
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.