Mark C. Baylor, MD
Family Medicine Physician · Elmwood, IL
Mark C. Baylor, MD is a family medicine physician with a practice address in Elmwood, Illinois, and NPI 1740256700, issued on Feb 28, 2006. Check the license (Illinois 036069541, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Mark C. Baylor
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 036069541 IL
Self-reported in NPPES; status is on the state search - Practice location
- 120 W Main Street, Elmwood, IL 61529
- Phone
- (309) 742-2921
- Enumerated
- Feb 28, 2006
- Record last updated
- Sep 29, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (309) 742-8411
- Medicaid ID
- 036069541 IL
- Medicare enrollment
- Enrolled (PECOS I20040408000392); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,215 in Illinois → Look up another NPI →
Also registered at 120 W Main Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Pamela Garner, MS FNPNurse Practitioner1306028212
Verify Mark C. Baylor 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 036069541Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
65% more Medicare Part D claims than the average family medicine physician in 2024
5,830 Medicare Part D claims for 304 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 552 claims were for opioids.
Most prescribed
- Atorvastatin Calcium400 claims
- Hydrocodone-Acetaminophen296 claims
- Lisinopril242 claims
- Omeprazole210 claims
- Amlodipine Besylate163 claims
- Tramadol Hcl162 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.
Mark C. Baylor among 6,215 family medicine physician records in Illinois
Mark C. Baylor, MD is one of 6,215 family medicine physician records with a practice address in Illinois. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 59% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1983 · median 2006 among the 3,714 with a school on file
- Record last updated2010 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
3 family medicine physician records list a practice address in Elmwood
They are 3 of the 15 NPPES records with a practice address in Elmwood, and 6,215 family medicine physician records in Illinois.
All 6,215 in Illinois → Every provider in Elmwood → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Jeremy Carrier, MDElmwood, IL 615291871753921
- Mark Deyoung, MDElmwood, IL 615291306845045
- Shane Fogo, M.D.Eureka, IL 615301063446318
- Christopher Hughes, M.D.Eureka, IL 615301235158924
- Steven Jones, MDEureka, IL 615301942228101
- Keith Knepp, M.D.Eureka, IL 615301982623666
- David Miller, M.D.Eureka, IL 615301437178415
- Alexa MillerEureka, IL 615301831610898
Common questions
What is Mark C. Baylor, MD's NPI number?
Mark C. Baylor, MD's National Provider Identifier (NPI) is 1740256700, issued on Feb 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark C. Baylor, MD located?
The NPPES record lists a practice address at 120 W Main Street, Elmwood, IL, 61529. Phone: (309) 742-2921. Providers update this record themselves, so call before visiting.
How can I verify Mark C. Baylor, MD's license?
NPPES lists Illinois license number 036069541, 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 C. Baylor, MD prescribe under Medicare Part D?
In 2024, Mark C. Baylor, MD had 5,830 Medicare Part D claims for 304 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.