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

Individual provider Mental Health Counselor · NPI 1982093472

Mark Cherniack, MSW is a Clinical Social Worker in Port Townsend, Washington. Graduated from University of Washington School of Medicine in 2004, 22 years ago. Practices with Jefferson County Public Hospital District No 2, a 150-clinician group and accepts Medicare assignment.

Years since qualifying
22
Trained at
University of Washington School of Medicine
In the registry since
2015
What do these letters mean?
MSW — Master of Social Work
The graduate degree in social work.

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Practice location Address checks out

834 Sheridan St
Port Townsend, WA 98368-2443
Phone: (360) 385-2200
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X

Record details

NPI number1982093472
Entity typeIndividual (Type 1)
GenderMale
Credentials MSW
Sole proprietorNo
NPI enumeratedJanuary 21, 2015
Last updated in NPPESJanuary 21, 2015
Mailing address834 Sheridan St, Port Townsend, WA 98368-2443

Medicare enrollment

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

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolUNIVERSITY OF WASHINGTON SCHOOL OF MEDICINE
Graduated 2004 (22 years in practice)
Group practice Jefferson County Public Hospital District No 2 — 150 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Port Townsend