Doctor profile · Federal record

Dr. Bronwen Williams, PH.D.

Clinical Psychologist · Gaithersburg, MD

  • NPI 1164589883
  • Accepts Medicare
  • 43 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
16220 S Frederick Ave Ste 512
Gaithersburg, MD 208774022
(301) 977-7782
fax (301) 977-8287
Mailing address
8 Hearthstone CT
Rockville, MD 208542644

Credentials & registration

NPPES · NUCC
NPI registered
January 2007 — 19 yrs on file
Profile last updated
July 8, 2007
Year of graduation
1983 — 43 yrs since
Specialty taxonomy
103TC0700X — NUCC code
State license (1)
Maryland #2764

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1164589883. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
461
Distinct HCPCS
1
Medicare allowed
$72,987
HCPCS Description Services Patients Avg allowed
90837 Psychotherapy, 1 hour 461 26 $158

In context: peer comparison

Among 2 peers in Gaithersburg Clinical Psychologist, average services per provider: 352. This provider delivers 1.3× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Bronwen Williams's medical specialty?
Dr. Bronwen Williams practices Clinical Psychologist in Gaithersburg, MD.
Where does Dr. Bronwen Williams practice?
Dr. Bronwen Williams practices at 16220 S Frederick Ave Ste 512, Gaithersburg, MD 208774022. Office phone: 3019777782.
What is Dr. Bronwen Williams's NPI?
Dr. Bronwen Williams's National Provider Identifier (NPI) is 1164589883, issued by NPPES.
Does Dr. Bronwen Williams accept Medicare assignment?
Yes. Dr. Bronwen Williams accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Bronwen Williams commonly perform?
Top Medicare-reported procedures in 2023: Psychotherapy (HCPCS 90837). Source: CMS Medicare Physician & Other Practitioners file.