Doctor profile · Federal record

Dr. Carl Leonhardt, DO

Emergency Medicine Physician (CMS: Emergency Medicine) · Emergency Medicine Physician · Student in an Organized Health Care Education/Training Program · Olympia Fields, IL

  • NPI 1548647324
  • Accepts Medicare
  • 11 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
20201 Crawford Ave
Olympia Fields, IL 604611010
(708) 747-4000

Credentials & registration

NPPES · NUCC
NPI registered
April 2015 — 11 yrs on file
Profile last updated
January 9, 2025
Year of graduation
2015 — 11 yrs since
Specialty taxonomy
207P00000X — NUCC code
State licenses (2)
Indiana #02005492A · Arizona #007960

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1548647324. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
228
Distinct HCPCS
3
Medicare allowed
$38,438
HCPCS Description Services Patients Avg allowed
99285 Emergency department visit with high level of medical decision making 140 140 $172
99284 Emergency department visit with moderate level of medical decision making 45 45 $119
99291 Critical care, first 30-74 minutes 43 43 $209

In context: peer comparison

Among 22 peers in Olympia Fields Emergency Medicine Physician, average services per provider: 105. This provider delivers 2.2× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$323
Transactions
3
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Atricure, INC. 1 $183.44
Janssen Pharmaceuticals, INC 2 $139.32

By nature of payment

Food and Beverage
$323

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
125
Patients
122
Total drug cost
$1,198
Drug Type Claims Patients Total cost
Ibuprofen Generic 32 32 $206
Ondansetron Odt (Ondansetron) Brand 22 19 $197
Oxycodone Hcl Generic 17 17 $40
Prednisone Generic 17 17 $38
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 14 14 $229
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 12 12 $253
Cefdinir Generic 11 11 $235

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Carl Leonhardt's medical specialty?
Dr. Carl Leonhardt practices Emergency Medicine Physician in Olympia Fields, IL.
Where does Dr. Carl Leonhardt practice?
Dr. Carl Leonhardt practices at 20201 Crawford Ave, Olympia Fields, IL 604611010. Office phone: 7087474000.
What is Dr. Carl Leonhardt's NPI?
Dr. Carl Leonhardt's National Provider Identifier (NPI) is 1548647324, issued by NPPES.
Does Dr. Carl Leonhardt accept Medicare assignment?
Yes. Dr. Carl Leonhardt accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Carl Leonhardt commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.