Doctor profile · Federal record

Dr. Sydney Seyfert, NP

Psychiatric/Mental Health Nurse Practitioner · Psychiatric/Mental Health Nurse Practitioner · Missoula, MT

  • NPI 1821394974
  • 15 yrs on file
  • Licensed in 2 states
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
821 S Orange St
Missoula, MT 598013833
(406) 540-3556
fax (406) 926-1049

Credentials & registration

NPPES · NUCC
NPI registered
February 2011 — 15 yrs on file
Profile last updated
April 22, 2020
Specialty taxonomy
363LP0808X — NUCC code
State licenses (2)
Montana #NUR-RN-LIC-46667 · Washington #AP60202570

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1821394974. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$32
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Lundbeck LLC 1 $19.20
ABBVIE INC. 1 $13.25

By nature of payment

Food and Beverage
$32

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
227
Patients
0
Total drug cost
$108,405
Drug Type Claims Patients Total cost
Lamotrigine Generic 31 0 $357
Escitalopram Oxalate Generic 24 0 $276
Trazodone Hcl Generic 22 0 $547
Bupropion Hcl Sr (Bupropion Hcl) Brand 17 0 $238
Desvenlafaxine Succinate Er (Desvenlafaxine Succinate) Brand 16 0 $1,089
Austedo (Deutetrabenazine) Brand 15 0 $68,334
Diazepam Generic 15 0 $140
Zolpidem Tartrate Generic 15 0 $55
Gabapentin Generic 14 0 $137
Abilify Maintena (Aripiprazole) Brand 13 0 $36,532

Frequently asked questions

Auto-generated from federal data
What is Dr. Sydney Seyfert's medical specialty?
Dr. Sydney Seyfert practices Psychiatric/Mental Health Nurse Practitioner in Missoula, MT.
Where does Dr. Sydney Seyfert practice?
Dr. Sydney Seyfert practices at 821 S Orange St, Missoula, MT 598013833. Office phone: 4065403556.
What is Dr. Sydney Seyfert's NPI?
Dr. Sydney Seyfert's National Provider Identifier (NPI) is 1821394974, issued by NPPES.