Doctor profile · Federal record

Dr. James Kowal, PH.D.

Professional Counselor · Naperville, IL

  • NPI 1255348777
  • 20 yrs on file
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1110 N Washington St
Naperville, IL 605632767
(630) 637-4002
fax (630) 637-4002

Credentials & registration

NPPES · NUCC
NPI registered
August 2006 — 20 yrs on file
Profile last updated
March 26, 2026
Specialty taxonomy
101YP2500X — NUCC code
State license (1)
Illinois #180-003245

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1255348777. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
992
Distinct HCPCS
4
Medicare allowed
$109,952
HCPCS Description Services Patients Avg allowed
90834 Psychotherapy, 45 minutes 629 27 $101
90837 Psychotherapy, 1 hour 239 24 $149
90832 Psychotherapy, 30 minutes 108 13 $76
90791 Psychiatric diagnostic evaluation 16 16 $177

In context: peer comparison

Among 2 peers in Naperville Professional Counselor, average services per provider: 244. This provider delivers 4.1× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. James Kowal's medical specialty?
Dr. James Kowal practices Professional Counselor in Naperville, IL.
Where does Dr. James Kowal practice?
Dr. James Kowal practices at 1110 N Washington St, Naperville, IL 605632767. Office phone: 6306374002.
What is Dr. James Kowal's NPI?
Dr. James Kowal's National Provider Identifier (NPI) is 1255348777, issued by NPPES.
What procedures does Dr. James Kowal commonly perform?
Top Medicare-reported procedures in 2023: Psychotherapy (HCPCS 90834); Psychotherapy (HCPCS 90837); Psychotherapy (HCPCS 90832). Source: CMS Medicare Physician & Other Practitioners file.