Doctor profile · Federal record

Dr. Ruth Williamson, PMHNP-BC

Psychiatric/Mental Health Nurse Practitioner (CMS: Nurse Practitioner) · Massena, NY

  • NPI 1386264356
  • Accepts Medicare
  • 7 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
16 Phillips St
Massena, NY 136622016
(315) 764-8076
Mailing address
42 Congress St, Po Box 92
Brasher Falls, NY 13613

Credentials & registration

NPPES · NUCC
NPI registered
April 2020 — 6 yrs on file
Profile last updated
November 28, 2023
Year of graduation
2019 — 7 yrs since
Specialty taxonomy
363LP0808X — NUCC code
State license (1)
New York #F402952-01

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1386264356. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
184
Distinct HCPCS
3
Medicare allowed
$14,131
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 104 38 $90
99213 Established patient office or other outpatient visit, 20-29 minutes 64 27 $66
99212 Established patient office or other outpatient visit, 10-19 minutes 16 12 $33

In context: peer comparison

Among 1 peers in Massena Psychiatric/Mental Health Nurse Practitioner, average services per provider: 61. This provider delivers 3.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$113
Transactions
4
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Iti, INC. (D/B/A Intra-Cellular Therapies, INC.) 3 $91.19
Indivior INC. 1 $21.52

By nature of payment

Food and Beverage
$113

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,201
Patients
276
Total drug cost
$152,098
Drug Type Claims Patients Total cost
Venlafaxine Hcl ER (Venlafaxine Hcl) Brand 127 20 $5,800
Lorazepam Generic 109 38 $1,193
Clonazepam Generic 101 30 $1,544
Sertraline Hcl Generic 92 18 $1,371
Quetiapine Fumarate Generic 91 22 $2,591
Lamotrigine Generic 86 19 $1,367
Aripiprazole Generic 85 14 $6,505
Duloxetine Hcl Generic 85 16 $6,637
Rexulti (Brexpiprazole) Brand 74 11 $113,144
Trazodone Hcl Generic 71 24 $1,363

Frequently asked questions

Auto-generated from federal data
What is Dr. Ruth Williamson's medical specialty?
Dr. Ruth Williamson practices Psychiatric/Mental Health Nurse Practitioner in Massena, NY.
Where does Dr. Ruth Williamson practice?
Dr. Ruth Williamson practices at 16 Phillips St, Massena, NY 136622016. Office phone: 3157648076.
What is Dr. Ruth Williamson's NPI?
Dr. Ruth Williamson's National Provider Identifier (NPI) is 1386264356, issued by NPPES.
Does Dr. Ruth Williamson accept Medicare assignment?
Yes. Dr. Ruth Williamson accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ruth Williamson commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99212). Source: CMS Medicare Physician & Other Practitioners file.