Robert G. Trapp, MD
Rheumatology Physician · Springfield, IL
Robert G. Trapp, MD is a rheumatology physician with a practice address in Springfield, Illinois, and NPI 1841363751, issued on Nov 16, 2006. Check the license (Illinois 036054588, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Robert G. Trapp
- Credential
- MD
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- 036054588 IL
Self-reported in NPPES; status is on the state search - Practice location
- 800 N 1St St, Springfield, IL 62702
- Phone
- (217) 528-7541
- Enumerated
- Nov 16, 2006
- Record last updated
- May 19, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (217) 522-4560
- Medicaid ID
- 036054588 IL
- Medicare enrollment
- Enrolled (PECOS I20260319001593); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 340 in Illinois → Look up another NPI →
Also registered at 800 N 1St St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Robert G. Trapp 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 036054588Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
1% more Medicare Part D claims than the average rheumatology physician in 2024
1,989 Medicare Part D claims for 281 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. 12 claims were for opioids.
Most prescribed
- Methotrexate447 claims
- Prednisone365 claims
- Hydroxychloroquine Sulfate138 claims
- Meloxicam77 claims
- Leflunomide76 claims
- Enbrel51 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.
Industry payments in 2024: $1,731.15
77 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 4,486 providers of this specialty with any payment received $8,538.33 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
- Providence Health And Services WashingtonLacey, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robert G. Trapp among 340 rheumatology physician records in Illinois
Robert G. Trapp, MD is one of 340 rheumatology physician records with a practice address in Illinois. 83% 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 7% of them.
- NPI issued2006 · 7% of these records are older, 52% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1974 · median 2003 among the 244 with a school on file
- Record last updated2020 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in Illinois
There are 340 rheumatology physician records in Illinois.
All 340 in Illinois → Every provider in Springfield → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Krati Chauhan, MDSpringfield, IL 627021710148481
- J Dorsey, M.D.Springfield, IL 627021669460390
- Mark Francis, M.D.Springfield, IL 627021164410890
- Jason Guthrie, M.DSpringfield, IL 627021437299682
- Beenish Hafiz, MDSpringfield, IL 627021215296215
- Jeffrey Horvath, M.D.Springfield, IL 627021588761811
- Rabia Iqbal, MDSpringfield, IL 627021457917833
- Timothy Lenardo, M.D.Springfield, IL 627021598873499
Common questions
What is Robert G. Trapp, MD's NPI number?
Robert G. Trapp, MD's National Provider Identifier (NPI) is 1841363751, issued on Nov 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert G. Trapp, MD located?
The NPPES record lists a practice address at 800 N 1St St, Springfield, IL, 62702. Phone: (217) 528-7541. Providers update this record themselves, so call before visiting.
How can I verify Robert G. Trapp, MD's license?
NPPES lists Illinois license number 036054588, 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 Robert G. Trapp, MD prescribe under Medicare Part D?
In 2024, Robert G. Trapp, MD had 1,989 Medicare Part D claims for 281 beneficiaries; the average among rheumatology physician prescribers was 1,978. 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.