Mark Baker, M.D.
Emergency Medicine Physician · Quincy, IL
Mark Baker, M.D. is an emergency medicine physician with a practice address in Quincy, Illinois, and NPI 1023469640, issued on Jun 24, 2016. Check the license (Illinois 036148580, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Mark Baker
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 036148580 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1005 Broadway St, Quincy, IL 62301
- Phone
- (217) 223-8400
- Enumerated
- Jun 24, 2016
- Record last updated
- Jun 12, 2026
- Medicare enrollment
- Enrolled (PECOS I20190523000333); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 2016
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,291 in Illinois → Look up another NPI →
Also registered at 1005 Broadway St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jeffrey Amport, M.D.Anesthesiology Physician1629462288
- Clark Andelin, MDObstetrics & Gynecology Physician1013114453
- Arthur Ankeney, MDEmergency Medicine Physician1508426131
- Muhammad Arshid, M.DNeurology Physician1043892631
Verify Mark Baker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036148580Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6% more Medicare Part D claims than the average emergency medicine physician in 2024
239 Medicare Part D claims for 181 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 15 claims were for opioids.
Most prescribed
- Cephalexin37 claims
- Ondansetron Odt32 claims
- Prednisone22 claims
- Doxycycline Hyclate14 claims
- Morphine Sulfate13 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
One hospital affiliation
- Blessing HospitalQuincy, IL · Acute Care Hospitals4 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Mark Baker among 3,291 emergency medicine physician records in Illinois
Mark Baker, M.D. is one of 3,291 emergency medicine physician records with a practice address in Illinois. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 65% of them.
- NPI issued2016 · 65% of these records are older, 32% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2016 · median 2012 among the 1,867 with a school on file
- Record last updated2026 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
18 emergency medicine physician records list a practice address in Quincy
They are 18 of the 1,336 NPPES records with a practice address in Quincy, and 3,291 emergency medicine physician records in Illinois.
All 3,291 in Illinois → Every provider in Quincy → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Melaina Chandou, D.O.Quincy, IL 623011942566534
- Kelly Cox, M.D.Quincy, IL 623011518182906
- David Eckersley, M.D.Quincy, IL 623011427318310
- Erin Grgurich, D.O.Quincy, IL 623011558706168
- Scott Hough, MDQuincy, IL 623011821102781
- Anna McCormick, M.D.Quincy, IL 623011487871232
- Richard Saalborn, M.D.Quincy, IL 623011568685899
- Spencer Smith, M.D.Quincy, IL 623011346448933
Common questions
What is Mark Baker, M.D.'s NPI number?
Mark Baker, M.D.'s National Provider Identifier (NPI) is 1023469640, issued on Jun 24, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Mark Baker, M.D. located?
The NPPES record lists a practice address at 1005 Broadway St, Quincy, IL, 62301. Phone: (217) 223-8400. Providers update this record themselves, so call before visiting.
How can I verify Mark Baker, M.D.'s license?
NPPES lists Illinois license number 036148580, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark Baker, M.D. prescribe under Medicare Part D?
In 2024, Mark Baker, M.D. had 239 Medicare Part D claims for 181 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.