Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1689639742 Individual Practitioner Male Practitioner

Dr. William Bentley Nash , PhD

Psychologist • Williston, VT

Professional Overview & Biography Verified Profile Summary

Dr. William Nash, PhD is a registered healthcare professional specializing in Psychologist in Williston, VT. Practice services are available at 4185 ST GEORGE RD under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

4185 St George Rd

Williston, VT 054957695

Telephone 8026517735
Fax 8028795335
Associated Practice Facility / Clinic
🏢 Erin K. Hall, Md Pllc Facility NPI 1457645988

Specialty Benchmarks & Practice Insights

Comparative analytics for Psychologist in Williston, VT

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 22.5 Yrs
State Avg: 29.0 Yrs
Regional Practice Density
9 Specialists

Practicing in Williston, VT (276 Statewide)

Telehealth Adoption Rate
22.2% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Medical Specialties & State Licenses

Psychologist Primary Specialty

NUCC Taxonomy Code: 103T00000X

State License VT 048-00421

A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustment, personal effectiveness, behavioral health, and mental health. The practice of psychology includes, but is not limited to, psychological testing and the evaluation or assessment of personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning; counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy; diagnosis and treatment of mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability; and psycheducational evaluation, therapy, remediation, and consultation. Psychological services may be rendered to individuals, families, groups and the public.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID
1002474 (VT)

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

9 Associated Practitioners
Dr. David Allan , MD

Psychiatry & Neurology - Psychiatry

NPI 1033258850

Doctor of Medicine (M.D.)

Rebecca Brooklyn , APRN

Nurse Practitioner - Psychiatric/Mental Health

NPI 1073911947

Advanced Practice Registered Nurse

Dr. Lisa Angstman , PhD

Psychologist - Clinical

NPI 1104924265

Doctor of Philosophy (Ph.D.)

Dr. Robin Lessoff , MD

Psychiatry & Neurology - Child & Adolescent Psychiatry

NPI 1366561904

Doctor of Medicine (M.D.)

Barbara Lewis , MS

Counselor - Addiction (Substance Use Disorder)

NPI 1467418046

Master of Science

NPI 1497703508

Doctor of Psychology (Psy.D.)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

6 Historical Events
NPI Profile Active July 09, 2007

NPI status registered as active in NPPES database

📍
Updated Practice Location July 09, 2007

Registered at 4185 ST GEORGE RD, WILLISTON, VT 054957695 (Tel: 8026517735)

📍
Updated Business Mailing Address July 09, 2007

Registered at 4185 ST GEORGE RD, WILLISTON, VT 054957695 (Tel: 8026517735)

👤
Provider Name / Credentials Updated July 09, 2007

Recorded as WILLIAM NASH, PH.D.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) July 09, 2007

Psychologist (License #048-00421 in VT)

🟢
Initial NPI Registration & Enumeration April 19, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

0 Reviews
No patient reviews submitted yet for Dr. William Nash. Be the first to share your experience!

Sign in to leave a review for Dr. William Nash

Only verified registered users can submit ratings, post feedback, and upload facility photos.

NPI Administrative Meta

NPI Number: 1689639742
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: April 19, 2006
Last Update: July 13, 2026
Sole Proprietor: No

Mailing Address

4185 St George Rd

Williston, VT 054957695

Phone: 8026517735

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.