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

Mr. John B. Westervelt, LMHC

Individual provider Mental Health Counselor · NPI 1871622696

Mr. John B. Westervelt, LMHC is a Mental Health Counselor in Northport, New York. Qualified in 1992, 34 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in New York.

Years since qualifying
34
Licensed in
NY
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

40 Mar Kan Dr
Northport, NY 11768-1858
Phone: (631) 697-3232
Fax: (631) 757-0708
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 000832 (NY)

Record details

NPI number1871622696
Entity typeIndividual (Type 1)
GenderMale
Credentials LMHC
Sole proprietorYes
NPI enumeratedMarch 5, 2007
Last updated in NPPESDecember 2, 2016
Mailing address40 Mar Kan Dr, Northport, NY 11768-1858

Medicare enrollment

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

Medicare specialtyMENTAL HEALTH COUNSELOR
Medical schoolOTHER
Graduated 1992 (34 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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