Doctor profile · Federal record

Dr. Cynthia Johnson, ARNP

Psychiatric/Mental Health Nurse Practitioner · Psychiatric/Mental Health Nurse Practitioner · Sioux City, IA

  • NPI 1023555638
  • 9 yrs on file
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
1021 Nebraska St
Sioux City, IA 511051436
(712) 252-2477
fax (712) 252-5920
Additional location
311 S Clark St
Carroll, IA 514013038
(712) 792-3581
Additional location
3410 Futures Dr
South Sioux City, NE 687763917
(402) 412-7242
Mailing address
311 S Clark St
Carroll, IA 514013038

Credentials & registration

NPPES · NUCC
NPI registered
January 2017 — 9 yrs on file
Profile last updated
June 14, 2021
Specialty taxonomy
363LP0808X — NUCC code
State licenses (2)
Iowa #G075234 · Nebraska #113003

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1023555638. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$125
Transactions
8
Manufacturers
5
Payer (manufacturer) Industry Txns Amount
Teva Pharmaceuticals USA, INC. 3 $44.74
Abbvie INC. 2 $29.49
Neurocrine Biosciences, INC. 1 $20.22
Indivior INC. 1 $17.49
E.R. Squibb & Sons, L.L.C. 1 $13.14

By nature of payment

Food and Beverage
$125

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,041
Patients
96
Total drug cost
$179,403
Drug Type Claims Patients Total cost
Quetiapine Fumarate Generic 188 20 $2,359
Aripiprazole Generic 104 15 $12,191
Lamotrigine Generic 104 17 $810
Clonazepam Generic 91 14 $882
Vraylar (Cariprazine Hcl) Brand 71 12 $83,404
Sertraline Hcl Generic 63 0 $734
Trazodone Hcl Generic 61 18 $594
Venlafaxine Hcl ER (Venlafaxine Hcl) Brand 61 0 $836
Prazosin Hcl Generic 58 0 $1,070
Zolpidem Tartrate Generic 49 0 $614

Frequently asked questions

Auto-generated from federal data
What is Dr. Cynthia Johnson's medical specialty?
Dr. Cynthia Johnson practices Psychiatric/Mental Health Nurse Practitioner in Sioux City, IA.
Where does Dr. Cynthia Johnson practice?
Dr. Cynthia Johnson practices at 1021 Nebraska St, Sioux City, IA 511051436. Office phone: 7122522477.
What is Dr. Cynthia Johnson's NPI?
Dr. Cynthia Johnson's National Provider Identifier (NPI) is 1023555638, issued by NPPES.