Doctor profile · Federal record

Dr. Catherine Johnson, MD FACEP, Abom, Mscp

Obesity Medicine (Preventive Medicine) Physician · Emergency Medicine Physician · Emergency Medicine Physician · Clarendon Hills, IL

  • NPI 1083609218
  • 21 yrs on file
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
23 Walker Ave
Clarendon Hills, IL 605141338
(312) 343-4342
fax (312) 736-9556
Additional location
365 Fifth Ave S Ste 220
Naples, FL 341026575
Additional location
215 N Peoria St
Chicago, IL 606071754
Mailing address
256 Holmes Ave
Clarendon Hills, IL 605141444

Credentials & registration

NPPES · NUCC
NPI registered
September 2005 — 21 yrs on file
Profile last updated
April 14, 2025
Specialty taxonomy
2083B0002X — NUCC code
State licenses (3)
Illinois #36107532 · Indiana #01056490 · Illinois #036107532
Medicaid
IN #200430170

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1083609218. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$35
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
CARDIVA MEDICAL, INC. 1 $22.00
Cochlear Americas 1 $13.23

By nature of payment

Food and Beverage
$35

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
200
Patients
13
Total drug cost
$85,634
Drug Type Claims Patients Total cost
Mounjaro (Tirzepatide) Brand 60 0 $81,359
Metformin Hcl Er (Metformin Hcl) Brand 35 13 $913
Levothyroxine Sodium Generic 20 0 $371
Allopurinol Generic 18 0 $270
Ondansetron Odt (Ondansetron) Brand 17 0 $214
Ondansetron Hcl Generic 13 0 $320
Progesterone (Progesterone, Micronized) Brand 13 0 $1,420
Liothyronine Sodium Generic 12 0 $586
Rosuvastatin Calcium Generic 12 0 $179

Frequently asked questions

Auto-generated from federal data
What is Dr. Catherine Johnson's medical specialty?
Dr. Catherine Johnson practices Obesity Medicine (Preventive Medicine) Physician in Clarendon Hills, IL.
Where does Dr. Catherine Johnson practice?
Dr. Catherine Johnson practices at 23 Walker Ave, Clarendon Hills, IL 605141338. Office phone: 3123434342.
What is Dr. Catherine Johnson's NPI?
Dr. Catherine Johnson's National Provider Identifier (NPI) is 1083609218, issued by NPPES.