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

John Quincy Marshall Jr., LMHC

Individual provider Mental Health Counselor · NPI 1881748366

John Quincy Marshall Jr., LMHC is a Mental Health Counselor in Lowell, Massachusetts. Qualified in 1994, 32 years ago. Practices with Sb Transitional Sub LLC, a 72-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Massachusetts.

Years since qualifying
32
Licensed in
MA
In the registry since
2007
What do these letters mean?
LMHC — Licensed Mental Health Counselor
A licensed mental health counsellor; the title used in Florida, New York and Washington among others.

See every abbreviation used in this directory →

Practice location Address checks out

77 E Merrimack St
Lowell, MA 01852
Phone: (978) 483-6800
Fax: (978) 483-6767
Show map & directions

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

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X · Licence 3941 (MA)

Record details

NPI number1881748366
Entity typeIndividual (Type 1)
GenderFemale
Credentials LMHC
Sole proprietorNo
NPI enumeratedJanuary 22, 2007
Last updated in NPPESJuly 8, 2007

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyMENTAL HEALTH COUNSELOR
Medical schoolOTHER
Graduated 1994 (32 years in practice)
Group practice Sb Transitional Sub Llc — 72 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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