DR. MARK BAKER (M.D.) – Emergency Medicine Physician, NPI 1023469640
Emergency Medicine Physician
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Profile Insights
NPPES metrics only — not quality of care.
2,845 EMERGENCY MEDICINE in IL
Provider Addresses for DR. MARK BAKER (M.D.)
PO BOX 19638
SPRINGFIELD, IL 627949638
Phone: (217) 545-3518
Fax: (217) 545-2711
Type: Mailing
701 N 1st St
Springfield, IL 627023757
Phone: (217) 545-3518
Fax: (217) 545-2711
Type: Location
640 W Washington St
Pittsfield, IL 623631350
Phone: (217) 223-8400
Type: Location
1600 Morgan St
Keokuk, IA 526323456
Phone: (319) 526-8703
Type: Location
1005 BROADWAY ST
QUINCY, IL 623012834
Phone: (121) 722-3840
Fax: (217) 277-3960
Type: Mailing
1005, Broadway Street, Quincy, Adams County, Illinois, 62301, United States
QUINCY, IL 623012834
Phone: (217) 223-8400
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2019-05-23
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20190523000333 | I | Emergency Medicine | IL | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99284 | Emergency department visit with moderate level of medical decision making | 259 | 244 | $0 |
| 99285 | Emergency department visit with high level of medical decision making | 246 | 242 | $0 |
| 99291 | Critical care, first 30-74 minutes | 151 | 147 | $0 |
| 99283 | Emergency department visit with low level of medical decision making | 53 | 52 | $0 |
| 99282 | Emergency department visit with straightforward medical decision making | 12 | 12 | $0 |
Insurance plans in this area (ZIP 62794)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| O B S T E T R I C S/ G Y N E C O L O G Y | IL | |
| Nurse Practitioner | IL | |
| N E U R O L O G Y | MI | |
| Radiation Oncology | IL | |
| Nurse Practitioner | IL | |
| Nurse Practitioner | IL | |
| Pain Management, Anesthesiology | IL | |
| Family Practice, Emergency Medicine | IL | |
| Nurse Practitioner | IL | |
| Family Practice | IL |
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