Robert Knudson, MD
Diagnostic Radiology Physician · Springfield, IL
Robert Knudson, MD is a diagnostic radiology physician with a practice address in Springfield, Illinois, and NPI 1235170069, issued on Jun 10, 2006. Check the license (Illinois 036109217, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Robert Knudson
- Credential
- MD
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License number
- 036109217 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1025 S 6TH St, Springfield, IL 62703
- Phone
- (217) 528-7541
- Enumerated
- Jun 10, 2006
- Record last updated
- Aug 22, 2022
- Medicaid ID
- 036109217 IL
- Medicare enrollment
- Enrolled (PECOS I20040428000383); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 1998
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 1,874 in Illinois → Look up another NPI →
Also registered at 1025 S 6TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Arun Abraham, MDFamily Medicine Physician1508020546
- Philip Abraham, M.D.Pulmonary Disease Physician1548375629
- Jeffrey Adkins, CRNACertified Registered Nurse Anesthetist1992793954
- Deborah Albright, M.D.Internal Medicine Physician1639145360
- Stanley Allen, M.D.Internal Medicine Physician1285631127
- Jessica Alwerdt, PHYSICIAN ASSISTANTPhysician Assistant1669706057
Verify Robert Knudson 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 036109217Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Springfield Clinic, LLPLincoln, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robert Knudson among 1,874 diagnostic radiology physician records in Illinois
Robert Knudson, MD is one of 1,874 diagnostic radiology physician records with a practice address in Illinois. 71% 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 11% of them.
- NPI issued2006 · 11% of these records are older, 54% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1998 · median 2004 among the 1,201 with a school on file
- Record last updated2022 · 43% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
129 diagnostic radiology physician records list a practice address in Springfield
They are 129 of the 4,997 NPPES records with a practice address in Springfield, and 1,874 diagnostic radiology physician records in Illinois.
All 1,874 in Illinois → Every provider in Springfield → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- Joseph Baima, M.D.Springfield, IL 627031144380049
- Catherine Barteau, D.O.Springfield, IL 627031578521746
- John Becker, MDSpringfield, IL 627031316988694
- Mickey Chabak, M.D.Springfield, IL 627031831359512
- Mary Curry, M.D.Springfield, IL 627031093936627
- Eileen Figuerres, M.D.Springfield, IL 627031093936635
- Kanchan Gupta, MDSpringfield, IL 627031972544526
- Edward Harter, MDSpringfield, IL 627031841452463
Common questions
What is Robert Knudson, MD's NPI number?
Robert Knudson, MD's National Provider Identifier (NPI) is 1235170069, issued on Jun 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert Knudson, MD located?
The NPPES record lists a practice address at 1025 S 6TH St, Springfield, IL, 62703. Phone: (217) 528-7541. Providers update this record themselves, so call before visiting.
How can I verify Robert Knudson, MD's license?
NPPES lists Illinois license number 036109217, 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.
What is Robert Knudson, MD's MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.