Dr. Mari B Baker , MD
Emergency Medicine • Peoria, IL
Professional Overview & Biography Verified Profile Summary
Dr. Mari Baker, MD is a certified Emergency Medicine practicing in Peoria, IL. With approximately 23 years of clinical experience since graduating from Southern Illinois University School Of Medicine in 2003, Dr. Baker delivers high-quality medical care to the local community at 8940 N WOOD SAGE RD.
Dr. Baker is affiliated with Oncology-Hematology Associates Of Central Illinois P C and accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.
Frequently performed procedures and clinical services include insertion of needle into vein for collection of blood sample, gammaglobulin (immune system protein) measurement, complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.
Practice Location & Contact Primary Location
8940 N Wood Sage Rd
Peoria, IL 616157822
Medicare Profile & Education
Southern Illinois University School Of Medicine
2003
✓ Accepts Assignment
Telehealth Services Available
Specialty Benchmarks & Practice Insights
Comparative analytics for Emergency Medicine in Peoria, IL
Practicing in Peoria, IL (3389 Statewide)
✓ Offers Virtual Consultations
Under CMS Medicare Fee Schedule vs Standard Submitted Charges
Clinical Seniority & Experience Comparison
Performed Procedures & Service Volume
Top Medicare Part B procedures performed by this practitioner
| HCPCS Code & Description | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
|
36415
Insertion of needle into vein for collection of blood sample
|
190 | 99 | $31.71 | $8.55 |
|
82784
Gammaglobulin (immune system protein) measurement
|
165 | 51 | $90.53 | $8.99 |
|
85025
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count
|
162 | 100 | $55.17 | $7.50 |
|
83550
Iron binding capacity
|
121 | 79 | $60.37 | $8.46 |
|
83540
Iron level
|
121 | 79 | $45.26 | $6.26 |
|
82728
Ferritin (blood protein) level
|
120 | 79 | $95.58 | $13.19 |
|
99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
|
111 | 93 | $295.77 | $121.90 |
|
83521
Measurement of immunoglobulin light chains
|
110 | 52 | $115.05 | $16.69 |
|
99213
Established patient office or other outpatient visit, typically 15 minutes
|
73 | 59 | $212.89 | $86.72 |
|
G2211
Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's
|
73 | 63 | $39.22 | $15.88 |
|
99203
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
|
70 | 70 | $317.66 | $107.08 |
|
82607
Cyanocobalamin (vitamin B-12) level
|
61 | 55 | $109.66 | $14.41 |
|
80053
Blood test, comprehensive group of blood chemicals
|
59 | 53 | $77.66 | $10.35 |
|
84165
Protein measurement, serum
|
53 | 51 | $88.08 | $10.38 |
|
99212
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more
|
53 | 45 | $131.38 | $52.99 |
|
86334
Immunologic analysis technique on serum (immunofixation)
|
41 | 39 | $173.17 | $21.48 |
|
83615
Lactate dehydrogenase (enzyme) level
|
37 | 36 | $46.49 | $5.80 |
|
99204
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
|
29 | 29 | $536.97 | $159.83 |
|
96367
Infusion into a vein for therapy, prevention, or diagnosis, additional sequential infusion, 1 hour or less
|
23 | 12 | $155.48 | $25.85 |
|
96372
Injection beneath the skin or into muscle for therapy, diagnosis, or prevention
|
18 | 16 | $110.72 | $13.46 |
|
84100
Phosphate level
|
17 | 12 | $37.71 | $4.65 |
|
96413
Infusion of chemotherapy into a vein up to 1 hour
|
17 | 16 | $694.18 | $117.10 |
|
82746
Folic acid level
|
17 | 16 | $110.18 | $14.41 |
|
99442
Telephone medical discussion with physician, 11-20 minutes
|
11 | 11 | $214.73 | $86.26 |
Medical Specialties & State Licenses
CMS Verified: 2026-03-02NUCC Taxonomy Code: 207P00000X
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
Additional State Medicaid & Healthcare Payer Identifiers
Hospital & Practice Group Affiliations
Oncology-Hematology Associates Of Central Illinois P C
8940 N Wood Sage Rd, Peoria, IL 616157822
Phone: 3092433000
Practice Associates & Co-Workers
Healthcare professionals and specialists practicing at this location or sharing practice phone/fax
Clinical Nurse Specialist
Advanced Practice Nurse
Internal Medicine - Hematology & Oncology
Doctor of Medicine (M.D.)
Internal Medicine - Hematology & Oncology
Doctor of Medicine (M.D.)
Internal Medicine - Hematology & Oncology
Doctor of Medicine (M.D.)
Internal Medicine - Hematology & Oncology
Doctor of Medicine (M.D.)
Clinical Nurse Specialist
Clinical Nurse Specialist
Career & Practice History Timeline
Chronological log of verified NPI updates, location relocations, credentials, and registry changes
Registered at 8940 N WOOD SAGE RD, PEORIA, IL 616157822 (Tel: 3092433000)
Registered at 8940 N WOOD SAGE RD, PEORIA, IL 616157822 (Tel: 3092433000)
Emergency Medicine (License #036-114578 in IL)
NPI status registered as active in NPPES database
Registered at 530 NE GLEN OAK AVE, PEORIA, IL 616370001 (Tel: 3096552553)
Registered at 530 NE GLEN OAK AVE, PEORIA, IL 616370001 (Tel: 3096552000)
Recorded as MARI BAKER, M.D.
Emergency Medicine
First registered as active Individual Practitioner in NPPES Database.
Patient & Community Reviews
Verified patient ratings, medical care experiences, and facility photos
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NPI Administrative Meta
Mailing Address
8940 N Wood Sage Rd
Peoria, IL 616157822
Phone: 3092433000
This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.