Doctor profile · Federal record

Dr. Siobhan Gaston, APRN

Psychiatric/Mental Health Nurse Practitioner · Family Nurse Practitioner · Norwich, CT

  • NPI 1295254340
  • 9 yrs on file
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
401 W Thames St Bldg 301
Norwich, CT 063607155
(860) 859-4738
fax (860) 859-4672

Credentials & registration

NPPES · NUCC
NPI registered
September 2017 — 9 yrs on file
Profile last updated
September 21, 2023
Specialty taxonomy
363LP0808X — NUCC code
State license (1)
Connecticut #6177

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1295254340. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
19
Distinct HCPCS
1
Medicare allowed
$1,547
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 19 17 $81

In context: peer comparison

Among 3 peers in this city , average services per provider: 119. This provider delivers 0.2× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$51
Transactions
3
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
ABBVIE INC. 3 $50.84

By nature of payment

Food and Beverage
$51

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,534
Patients
51
Total drug cost
$40,003
Drug Type Claims Patients Total cost
Clozapine Generic 263 0 $12,287
Benztropine Mesylate Generic 203 20 $1,755
Trazodone Hcl Generic 166 18 $1,609
Quetiapine Fumarate Generic 139 13 $5,551
Haloperidol Generic 109 0 $2,695
Lorazepam Generic 88 0 $1,509
Olanzapine Generic 86 0 $2,685
Bupropion Xl (Bupropion Hcl) Brand 76 0 $1,691
Risperidone Generic 74 0 $1,866
Clonazepam Generic 59 0 $499

Frequently asked questions

Auto-generated from federal data
What is Dr. Siobhan Gaston's medical specialty?
Dr. Siobhan Gaston practices Psychiatric/Mental Health Nurse Practitioner in Norwich, CT.
Where does Dr. Siobhan Gaston practice?
Dr. Siobhan Gaston practices at 401 W Thames St Bldg 301, Norwich, CT 063607155. Office phone: 8608594738.
What is Dr. Siobhan Gaston's NPI?
Dr. Siobhan Gaston's National Provider Identifier (NPI) is 1295254340, issued by NPPES.
What procedures does Dr. Siobhan Gaston commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.