Mark B. Deyoung, MD
Family Medicine Physician · Elmwood, IL
Mark B. Deyoung, MD is a family medicine physician with a practice address in Elmwood, Illinois, and NPI 1306845045, issued on Jul 15, 2005. Check the license (Illinois 036108454, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Mark B. Deyoung
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 036108454 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1024 N Magnolia St, Elmwood, IL 61529
- Phone
- (309) 742-6334
- Enumerated
- Jul 15, 2005
- Record last updated
- Feb 21, 2022
- Fax
- (309) 647-6880
- Medicaid ID
- 0361084541 IL
- Medicare enrollment
- Enrolled (PECOS I20040921000368); accepts Medicare assignment
- Medical or professional school
- University Of Michigan Medical School, 1978
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,215 in Illinois → Look up another NPI →
Also registered at 1024 N Magnolia St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jeremy Carrier, MDFamily Medicine Physician1871753921
- Kristen Jackson, FNP-CNurse Practitioner1316465347
- Nathalie Snider, FNP-CFamily Nurse Practitioner1447934021
Verify Mark B. Deyoung 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 036108454Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.5 times the Medicare Part D claims of the average family medicine physician in 2024
9,004 Medicare Part D claims for 535 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 637 claims were for opioids.
Most prescribed
- Lisinopril435 claims
- Hydrocodone-Acetaminophen357 claims
- Levothyroxine Sodium333 claims
- Meloxicam292 claims
- Atorvastatin Calcium290 claims
- Metoprolol Succinate262 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 78 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $75.52
3 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
One hospital affiliation
- Graham Hospital AssociationElmwood, IL · Acute Care Hospitals3 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 B. Deyoung among 6,215 family medicine physician records in Illinois
Mark B. Deyoung, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 91% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1978 · median 2006 among the 3,714 with a school on file
- Record last updated2022 · 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
- Mark Baylor, MDElmwood, IL 615291740256700
- Jeremy Carrier, MDElmwood, IL 615291871753921
- 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 B. Deyoung, MD's NPI number?
Mark B. Deyoung, MD's National Provider Identifier (NPI) is 1306845045, issued on Jul 15, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mark B. Deyoung, MD located?
The NPPES record lists a practice address at 1024 N Magnolia St, Elmwood, IL, 61529. Phone: (309) 742-6334. Providers update this record themselves, so call before visiting.
How can I verify Mark B. Deyoung, MD's license?
NPPES lists Illinois license number 036108454, 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 B. Deyoung, MD prescribe under Medicare Part D?
In 2024, Mark B. Deyoung, MD had 9,004 Medicare Part D claims for 535 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Mark B. Deyoung, MD's MIPS final score?
The 2023 MIPS final score is 78 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.