Doctor profile · Federal record
Dr. Mark Baker, M.D.
Emergency Medicine Physician (CMS: Emergency Medicine) · Emergency Medicine Physician · Quincy, IL
- NPI 1023469640
- Accepts Medicare
- 10 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 4 locations .
- Primary practice
-
1005 Broadway St
Quincy, IL 623012834
(217) 223-8400 - Additional location
-
640 W Washington St
Pittsfield, IL 623631350 - Additional location
-
701 N 1St St
Springfield, IL 627023757
(217) 545-3518
fax (217) 545-2711 - Additional location
-
1600 Morgan St
Keokuk, IA 526323456
(319) 526-8703
Show 1 more location
Credentials & registration
- NPI registered
- June 2016 — 10 yrs on file
- Profile last updated
- August 2, 2022
- Year of graduation
- 2016 — 10 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State licenses (2)
- Illinois #036148580 · Iowa #MD-50039
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1023469640. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
721
Distinct HCPCS
5
Medicare allowed
$112,170
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99284 |
Emergency department visit with moderate level of medical decision making | 259 | 244 | $122 | |
99285 |
Emergency department visit with high level of medical decision making | 246 | 242 | $178 | |
99291 |
Critical care, first 30-74 minutes | 151 | 147 | $214 | |
99283 |
Emergency department visit with low level of medical decision making | 53 | 52 | $73 | |
99282 |
Emergency department visit with straightforward medical decision making | 12 | 12 | $42 |
In context: peer comparison
Among 9 peers in Quincy Emergency Medicine Physician, average services per provider: 153. This provider delivers 4.7× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
103
Patients
103
Total drug cost
$679
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Ondansetron Odt (Ondansetron) | Brand | 39 | 39 | $167 |
| Cephalexin | Generic | 21 | 21 | $320 |
| Morphine Sulfate | Generic | 16 | 16 | $54 |
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 15 | 15 | $114 |
| Prednisone | Generic | 12 | 12 | $23 |
Hospital affiliations
Frequently asked questions
What is Dr. Mark Baker's medical specialty?
Dr. Mark Baker practices Emergency Medicine Physician in Quincy, IL.
Where does Dr. Mark Baker practice?
Dr. Mark Baker practices at 1005 Broadway St, Quincy, IL 623012834. Office phone: 2172238400.
What is Dr. Mark Baker's NPI?
Dr. Mark Baker's National Provider Identifier (NPI) is 1023469640, issued by NPPES.
Does Dr. Mark Baker accept Medicare assignment?
Yes. Dr. Mark Baker accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Baker commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with moderate level of medical decision making (HCPCS 99284); Emergency department visit with high level of medical decision making (HCPCS 99285); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.