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
- Entity
- Type 1 · individual
Also registered at 1005 Broadway St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Andrew Ackell, MDInternal Medicine Physician1942793237
- Donald Altgilbers, CRNFARegistered Nurse First Assistant1770848368
- 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
33% fewer Medicare Part D claims than the average emergency medicine physician in 2024
239 Medicare Part D claims for 181 beneficiaries, against an average of 355 among the 49,029 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 or facility affiliation
- Blessing HospitalQuincy, IL · Acute Care Hospitals4 of 5 stars
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
17 emergency medicine physician records list a Quincy practice address
They are 17 of the 1,336 NPPES records with a Quincy practice address, and 3,096 emergency medicine physician records in Illinois.
All 17 in Quincy → All 3,096 in Illinois → Every provider in Quincy →
Other emergency medicine physician records in Illinois
- Osama Aaflaq, M.D.Carbondale, IL1083663520
- Suresh Abad, M.D.Vernon Hills, IL1639100126
- Albert Abalos, M.D.Elmhurst, IL1881983484
- Habib Abbasi, M.D.Joliet, IL1902832835
- Andrew Abbeg, D.O.Greenville, IL1548490311
- Ryan Abbott, DOChicago, IL1477243517
- Zakaria Abdulnabi, M.D.Urbana, IL1790135499
- Logan Abel, MDChicago, IL1447900592
- Claire Abramoff, MDChicago, IL1316380009
- Rachel Abrams, M.D.Chicago, IL1659786317
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 355. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.