Doctor profile · Federal record
Dr. Michael Hartmann, MD
Emergency Medicine Physician · Emergency Medicine Physician · Naperville, IL
- NPI 1013073253
- 20 yrs on file
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
801 S Washington St
Naperville, IL 605407430
(630) 527-3000 - Additional location
-
1000 Mineral Point Ave
Janesville, WI 53548
(608) 756-6111
fax (608) 756-6177 - Mailing address
-
1000 Mineral Point Ave
Janesville, WI 535482940
Credentials & registration
- NPI registered
- December 2006 — 20 yrs on file
- Profile last updated
- November 25, 2025
- Specialty taxonomy
- 207P00000X — NUCC code
- State licenses (2)
- Illinois #036109982 · Wisconsin #60901-20
- Medicaid (2)
- WI #1013073253 · IL #036109982
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1013073253. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,014
Distinct HCPCS
5
Medicare allowed
$111,319
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 380 | 375 | $183 | |
93010 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 362 | 343 | $8 | |
99284 |
Emergency department visit with moderate level of medical decision making | 172 | 170 | $126 | |
99291 |
Critical care, first 30-74 minutes | 68 | 67 | $219 | |
99283 |
Emergency department visit with low level of medical decision making | 32 | 31 | $75 |
In context: peer comparison
Among 23 peers in this city , average services per provider: 114. This provider delivers 8.9× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
169
Patients
166
Total drug cost
$1,113
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Cephalexin | Generic | 51 | 48 | $372 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 51 | 51 | $265 |
| Prednisone | Generic | 25 | 25 | $80 |
| Ondansetron Odt (Ondansetron) | Brand | 24 | 24 | $212 |
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 18 | 18 | $183 |
Frequently asked questions
What is Dr. Michael Hartmann's medical specialty?
Dr. Michael Hartmann practices Emergency Medicine Physician in Naperville, IL.
Where does Dr. Michael Hartmann practice?
Dr. Michael Hartmann practices at 801 S Washington St, Naperville, IL 605407430. Office phone: 6305273000.
What is Dr. Michael Hartmann's NPI?
Dr. Michael Hartmann's National Provider Identifier (NPI) is 1013073253, issued by NPPES.
What procedures does Dr. Michael Hartmann commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010); Emergency department visit with moderate level of medical decision making (HCPCS 99284). Source: CMS Medicare Physician & Other Practitioners file.