Doctor profile · Federal record

Dr. John Korger, MD

Child & Adolescent Psychiatry Physician (CMS: Psychiatry) · Oshkosh, WI

  • NPI 1952315723
  • Accepts Medicare
  • 41 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
855 N Westhaven Dr
Oshkosh, WI 549047668
(920) 303-8700
Additional location
40 Jewelers Park Drive, Suite 100
Neenah, WI 54956
(920) 720-9995
fax (920) 720-9980
Mailing address
Po Box 735044
Chicago, IL 606735044

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
November 8, 2023
Year of graduation
1985 — 41 yrs since
Specialty taxonomy
2084P0804X — NUCC code
State license (1)
Wisconsin #32203
Medicaid
WI #31723800

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1952315723. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
80
Distinct HCPCS
2
Medicare allowed
$7,169
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 50 15 $75
99214 Established patient office or other outpatient visit, 30-39 minutes 30 14 $114

In context: peer comparison

Among 1 peers in Oshkosh Child & Adolescent Psychiatry Physician, average services per provider: 40. This provider delivers 2.0× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
604
Patients
0
Total drug cost
$8,439
Drug Type Claims Patients Total cost
Quetiapine Fumarate ER (Quetiapine Fumarate) Brand 92 0 $893
Clonazepam Generic 69 0 $571
Olanzapine Generic 55 0 $885
Quetiapine Fumarate Generic 44 0 $318
Buspirone Hcl Generic 41 0 $739
Escitalopram Oxalate Generic 37 0 $289
Venlafaxine Hcl ER (Venlafaxine Hcl) Brand 37 0 $398
Loxapine (Loxapine Succinate) Brand 34 0 $1,002
Fluoxetine Hcl Generic 33 0 $528
Metformin Hcl Generic 32 0 $113

Frequently asked questions

Auto-generated from federal data
What is Dr. John Korger's medical specialty?
Dr. John Korger practices Child & Adolescent Psychiatry Physician in Oshkosh, WI.
Where does Dr. John Korger practice?
Dr. John Korger practices at 855 N Westhaven Dr, Oshkosh, WI 549047668. Office phone: 9203038700.
What is Dr. John Korger's NPI?
Dr. John Korger's National Provider Identifier (NPI) is 1952315723, issued by NPPES.
Does Dr. John Korger accept Medicare assignment?
Yes. Dr. John Korger accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Korger 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). Source: CMS Medicare Physician & Other Practitioners file.