William S. Stevens, M.D.
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Springfield, IL
William S. Stevens, M.D. is a thoracic surgery (cardiothoracic vascular surgery) physician with a practice address in Springfield, Illinois, and NPI 1548241250, issued on Nov 9, 2005. Check the license (Illinois 036083480, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- William S. Stevens
- Credential
- M.D.
- Primary taxonomy
- Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 208G00000X
- License number
- 036083480 IL
Self-reported in NPPES; status is on the state search - Practice location
- 619 E Mason St, Springfield, IL 62701
- Phone
- (217) 545-7600
- Enumerated
- Nov 9, 2005
- Record last updated
- Dec 7, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (217) 545-2552
- Medicaid ID
- 036083480 IL
- Medicare enrollment
- Enrolled (PECOS I20040910000527); accepts Medicare assignment
- Medical or professional school
- Medical University Of South Carolina College Of Medicine, 1982
- Entity
- Type 1 · individual
8 nearest thoracic surgery (cardiothoracic vascular surgery) physician records → All 265 in Illinois → Look up another NPI →
Also registered at 619 E Mason St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Frank Aguirre, M.D.Interventional Cardiology Physician1265513717
- Susan Allen, ACNPAcute Care Nurse Practitioner1760631683
- Carl Arentzen, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1033190814
- Jennifer Black, N.P.Adult Health Nurse Practitioner1174607576
- Melissa Clark, PA-CPhysician Assistant1598776882
- Margie DouglasAdult Health Nurse Practitioner1154623585
Verify William S. Stevens 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 036083480Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.2 times the Medicare Part D claims of the average thoracic surgery (cardiothoracic vascular surgery) physician in 2024
327 Medicare Part D claims for 124 beneficiaries, against an average of 101 among the 2,587 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims.
Most prescribed
- Warfarin Sodium100 claims
- Furosemide25 claims
- Metoprolol Tartrate21 claims
- Potassium Chloride21 claims
- Cephalexin15 claims
- Gabapentin15 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 MIPS final score for 2023 (Medicare payment program): 78.7 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $356.94
3 payments; by number, the most common kind was food and beverage; the largest payer was Edwards Lifesciences Corporation. The 4,047 providers of this specialty with any payment received $7,828.84 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.
Bills Medicare through one group practice
- Siu Physicians And Surgeons IncSpringfield, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William S. Stevens among 265 thoracic surgery (cardiothoracic vascular surgery) physician records in Illinois
William S. Stevens, M.D. is one of 265 thoracic surgery (cardiothoracic vascular surgery) physician records with a practice address in Illinois. 72% 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, 87% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated1982 · median 1999 among the 148 with a school on file
- Record last updated2020 · 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 208G00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers in Illinois
There are 265 thoracic surgery (cardiothoracic vascular surgery) physician records in Illinois.
All 265 in Illinois → Every provider in Springfield → Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician nationwide →
The 8 thoracic surgery (cardiothoracic vascular surgery) physician records with the nearest ZIP codes
- Carl Arentzen, M.D.Springfield, IL 627011033190814
- Neil Thomas, M.D.Springfield, IL 627011720070238
- Jeffrey Christy, M.D.Springfield, IL 627021710968490
- Traves Crabtree, MDSpringfield, IL 627021790703429
- Stephen Hazelrigg, M.D.Springfield, IL 627021205817996
- Rachel KimSpringfield, IL 627021326496563
- Russell McElveen, DOSpringfield, IL 627021275714735
- Lindsey Saint, M.D.Springfield, IL 627021386871069
Common questions
What is William S. Stevens, M.D.'s NPI number?
William S. Stevens, M.D.'s National Provider Identifier (NPI) is 1548241250, issued on Nov 9, 2005. An NPI identifies a provider in billing; it is not a license.
Where is William S. Stevens, M.D. located?
The NPPES record lists a practice address at 619 E Mason St, Springfield, IL, 62701. Phone: (217) 545-7600. Providers update this record themselves, so call before visiting.
How can I verify William S. Stevens, M.D.'s license?
NPPES lists Illinois license number 036083480, 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 William S. Stevens, M.D. prescribe under Medicare Part D?
In 2024, William S. Stevens, M.D. had 327 Medicare Part D claims for 124 beneficiaries; the average among thoracic surgery (cardiothoracic vascular surgery) physician prescribers was 101. Part D covers Medicare prescriptions only.
What is William S. Stevens, M.D.'s MIPS final score?
The 2023 MIPS final score is 78.7 of 100. 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.