Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

John H. Heckler, PC

Organization Psychologist · NPI 1164662375

John H. Heckler, PC is a Psychologist in Tewksbury, Massachusetts. Licensed in California, Massachusetts and New Hampshire. Registered with an NPI since 2009.

Licensed in
CA, MA, NH
In the registry since
2009
Specialties on file
15
What do these letters mean?
PC — Professional corporation
A form of business registration, not a clinical qualification.

See every abbreviation used in this directory →

Practice location Address checks out

1445 Main St Ste 5
Tewksbury, MA 01876-4723
Phone: (978) 851-4251
Fax: (978) 851-8515
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 2483 (MA)
Psychologist Taxonomy 103T00000X · Licence 2483 (MA)
Psychologist Taxonomy 103T00000X · Licence 6616 (CA)
Psychologist Taxonomy 103T00000X · Licence 1000 (NH)
Addiction (Substance Use Disorder) Psychologist Taxonomy 103TA0400X · Licence 2483 (MA)
Addiction (Substance Use Disorder) Psychologist Taxonomy 103TA0400X · Licence 1000 (NH)
Cognitive & Behavioral Psychologist Taxonomy 103TB0200X · Licence 2483 (MA)
Cognitive & Behavioral Psychologist Taxonomy 103TB0200X · Licence 1000 (NH)
Clinical Psychologist Taxonomy 103TC0700X · Licence 1000 (NH)
Clinical Psychologist Taxonomy 103TC0700X · Licence 6616 (CA)
Counseling Psychologist Taxonomy 103TC1900X · Licence 2483 (MA)
Counseling Psychologist Taxonomy 103TC1900X · Licence 1000 (NH)
Counseling Psychologist Taxonomy 103TC1900X · Licence 6616 (CA)
Clinical Child & Adolescent Psychologist Taxonomy 103TC2200X · Licence 2483 (MA)
Clinical Child & Adolescent Psychologist Taxonomy 103TC2200X · Licence 1000 (NH)

Record details

NPI number1164662375
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official John Heckler — Owner · (978) 851-4251
Other names Tewksbury Mental Health Associates
NPI enumeratedFebruary 27, 2009
Last updated in NPPESFebruary 27, 2009
Mailing address1445 Main St, Suite 5, Tewksbury, MA 01876-4723

Other providers in Tewksbury