Doctor profile · Federal record

Dr. Cynthia Guthmiller, ARNP/ PMHNP

Psychiatric/Mental Health Nurse Practitioner · Family Nurse Practitioner · Family Nurse Practitioner · Women's Health Nurse Practitioner · Sioux City, IA

  • NPI 1790755395
  • 20 yrs on file
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
625 Court Street
Sioux City, IA 511011919
(712) 252-3871
fax (712) 252-3157

Credentials & registration

NPPES · NUCC
NPI registered
January 2006 — 20 yrs on file
Profile last updated
May 31, 2022
Specialty taxonomy
363LP0808X — NUCC code
State licenses (4)
Iowa #G159714 · South Dakota #CP000559 · Iowa #A-092601 · Iowa #F-092601

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1790755395. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
60
Distinct HCPCS
1
Medicare allowed
$4,651
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 60 16 $78

In context: peer comparison

Among 4 peers in this city , average services per provider: 92. This provider delivers 0.7× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$264
Transactions
4
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
Supernus Pharmaceuticals, Inc. 1 $213.73
ABBVIE INC. 2 $26.87
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) 1 $23.78

By nature of payment

Food and Beverage
$264

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
675
Patients
12
Total drug cost
$83,235
Drug Type Claims Patients Total cost
Vraylar (Cariprazine Hcl) Brand 87 0 $61,178
Bupropion Xl (Bupropion Hcl) Brand 75 0 $1,235
Divalproex Sodium Er (Divalproex Sodium) Brand 64 0 $2,017
Aripiprazole Generic 62 0 $4,282
Trazodone Hcl Generic 59 0 $851
Quetiapine Fumarate Generic 49 12 $653
Duloxetine Hcl Generic 41 0 $598
Hydroxyzine Pamoate Generic 37 0 $615
Venlafaxine Hcl Er (Venlafaxine Hcl) Brand 34 0 $262
Desvenlafaxine Succinate Er (Desvenlafaxine Succinate) Brand 33 0 $1,392

Frequently asked questions

Auto-generated from federal data
What is Dr. Cynthia Guthmiller's medical specialty?
Dr. Cynthia Guthmiller practices Psychiatric/Mental Health Nurse Practitioner in Sioux City, IA.
Where does Dr. Cynthia Guthmiller practice?
Dr. Cynthia Guthmiller practices at 625 Court Street, Sioux City, IA 511011919. Office phone: 7122523871.
What is Dr. Cynthia Guthmiller's NPI?
Dr. Cynthia Guthmiller's National Provider Identifier (NPI) is 1790755395, issued by NPPES.
What procedures does Dr. Cynthia Guthmiller commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.