Doctor profile · Federal record

Dr. Shawn Stemper, NP

Psychiatric/Mental Health Nurse Practitioner (CMS: Nurse Practitioner) · Nurse Practitioner · Lake Geneva, WI

  • NPI 1588219679
  • Accepts Medicare
  • 7 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
146 E Geneva Sq
Lake Geneva, WI 531479694
(877) 666-7223
fax (262) 249-7132
Mailing address
Po Box 735044
Chicago, IL 606735044

Credentials & registration

NPPES · NUCC
NPI registered
August 2019 — 7 yrs on file
Profile last updated
September 4, 2025
Year of graduation
2019 — 7 yrs since
Specialty taxonomy
363LP0808X — NUCC code
State license (1)
Wisconsin #9462
Medicaid
WI #100092826

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1588219679. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
263
Distinct HCPCS
4
Medicare allowed
$22,876
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 123 51 $70
99214 Established patient office or other outpatient visit, 30-39 minutes 83 37 $104
99442 Telephone medical discussion with physician, 11-20 minutes 40 21 $72
90792 Psychiatric diagnostic evaluation with medical services 17 17 $162

In context: peer comparison

Among 1 peers in Lake Geneva Psychiatric/Mental Health Nurse Practitioner, average services per provider: 65. This provider delivers 4.0× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
2,785
Patients
387
Total drug cost
$133,946
Drug Type Claims Patients Total cost
Trazodone Hcl Generic 365 57 $3,806
Lamotrigine Generic 273 36 $2,431
Venlafaxine Hcl ER (Venlafaxine Hcl) Brand 202 26 $4,879
Quetiapine Fumarate Generic 194 21 $8,127
Vyvanse (Lisdexamfetamine Dimesylate) Brand 193 20 $79,197
Buspirone Hcl Generic 186 28 $4,207
Duloxetine Hcl Generic 185 30 $4,096
Bupropion Xl (Bupropion Hcl) Brand 178 26 $4,026
Escitalopram Oxalate Generic 174 25 $1,594
Clonazepam Generic 159 20 $1,881

Frequently asked questions

Auto-generated from federal data
What is Dr. Shawn Stemper's medical specialty?
Dr. Shawn Stemper practices Psychiatric/Mental Health Nurse Practitioner in Lake Geneva, WI.
Where does Dr. Shawn Stemper practice?
Dr. Shawn Stemper practices at 146 E Geneva Sq, Lake Geneva, WI 531479694. Office phone: 8776667223.
What is Dr. Shawn Stemper's NPI?
Dr. Shawn Stemper's National Provider Identifier (NPI) is 1588219679, issued by NPPES.
Does Dr. Shawn Stemper accept Medicare assignment?
Yes. Dr. Shawn Stemper accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Shawn Stemper commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); Telephone medical discussion with physician (HCPCS 99442). Source: CMS Medicare Physician & Other Practitioners file.