Doctor profile · Federal record
Dr. Mary Beth Williams, PH.D., LCSW, Cts
Clinical Social Worker · Marriage & Family Therapist · Warrenton, VA
- NPI 1942399811
- 36 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
9 N 3Rd St, #14
Warrenton, VA 201863404
(540) 341-7339
fax (540) 341-7339
Credentials & registration
- NPI registered
- October 2006 — 20 yrs on file
- Profile last updated
- September 11, 2025
- Year of graduation
- 1990 — 36 yrs since
- Specialty taxonomy
- 1041C0700X — NUCC code
- State license (1)
- Virginia #0904000277
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1942399811. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
451
Distinct HCPCS
1
Medicare allowed
$48,705
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
90837 |
Psychotherapy, 1 hour | 451 | 21 | $108 |
In context: peer comparison
Among 1 peers in Warrenton Clinical Social Worker, average services per provider: 451. This provider delivers 1.0× the peer median.Frequently asked questions
What is Dr. Mary Beth Williams's medical specialty?
Dr. Mary Beth Williams practices Clinical Social Worker in Warrenton, VA.
Where does Dr. Mary Beth Williams practice?
Dr. Mary Beth Williams practices at 9 N 3Rd St, Warrenton, VA 201863404. Office phone: 5403417339.
What is Dr. Mary Beth Williams's NPI?
Dr. Mary Beth Williams's National Provider Identifier (NPI) is 1942399811, issued by NPPES.
Does Dr. Mary Beth Williams accept Medicare assignment?
Dr. Mary Beth Williams does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Mary Beth Williams commonly perform?
Top Medicare-reported procedures in 2023: Psychotherapy (HCPCS 90837). Source: CMS Medicare Physician & Other Practitioners file.