Doctor profile · Federal record

Dr. STEPHEN SLADEK, M.D.

Family Medicine Physician · OAK LAWN, IL

  • NPI 1770562563
  • 20 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
9555 S 52ND AVE
OAK LAWN, IL 604533054
(708) 422-5700
fax (708) 422-8225

Credentials & registration

NPPES · NUCC
NPI registered
January 2006 — 20 yrs on file
Profile last updated
December 13, 2021
Specialty taxonomy
207Q00000X — NUCC code
State license (1)
Illinois #036133124

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1770562563. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
60
Distinct HCPCS
3
Medicare allowed
$4,972
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 22 16 $133
99213 Established patient office or other outpatient visit, 20-29 minutes 20 18 $95
36415 Insertion of needle into vein for collection of blood sample 18 12 $8

In context: peer comparison

Among 13 peers in this city , average services per provider: 140. This provider delivers 0.4× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
315
Patients
48
Total drug cost
$9,581
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 59 24 $976
Metoprolol Succinate Generic 31 12 $681
Lisinopril Generic 25 0 $212
Metformin Hcl Generic 25 12 $301
Amlodipine Besylate Generic 23 0 $279
Hydrochlorothiazide Generic 22 0 $72
Losartan Potassium Generic 19 0 $250
Levothyroxine Sodium Generic 17 0 $154
Tramadol Hcl Generic 17 0 $82
Pantoprazole Sodium Generic 15 0 $160