Doctor profile · Federal record

Dr. Anne Williamson, LMSW

Social Worker (CMS: Clinical Social Worker) · Plymouth, MI

  • NPI 1245569185
  • Accepts Medicare
  • 33 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
192 N. Main St
Plymouth, MI 48170
(734) 459-6016
Mailing address
409 Plymouth RD Ste 190
Plymouth, MI 481701493

Credentials & registration

NPPES · NUCC
NPI registered
December 2009 — 17 yrs on file
Profile last updated
May 8, 2019
Year of graduation
1993 — 33 yrs since
Specialty taxonomy
104100000X — NUCC code
State license (1)
Michigan #680-106-8377

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1245569185. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
101
Distinct HCPCS
1
Medicare allowed
$7,500
HCPCS Description Services Patients Avg allowed
90834 Psychotherapy, 45 minutes 101 14 $74

In context: peer comparison

Among 2 peers in this city , average services per provider: 138. This provider delivers 0.7× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Anne Williamson's medical specialty?
Dr. Anne Williamson practices Social Worker in Plymouth, MI.
Where does Dr. Anne Williamson practice?
Dr. Anne Williamson practices at 192 N. Main St, Plymouth, MI 48170. Office phone: 7344596016.
What is Dr. Anne Williamson's NPI?
Dr. Anne Williamson's National Provider Identifier (NPI) is 1245569185, issued by NPPES.
Does Dr. Anne Williamson accept Medicare assignment?
Yes. Dr. Anne Williamson accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Anne Williamson commonly perform?
Top Medicare-reported procedures in 2023: Psychotherapy (HCPCS 90834). Source: CMS Medicare Physician & Other Practitioners file.