Dennis P. Larson, M.D.
Internal Medicine Physician · Belleville, IL
Dennis P. Larson, M.D. is an internal medicine physician with a practice address in Belleville, Illinois, and NPI 1003096140, issued on Nov 6, 2007. Check the license on the Illinois Department of Financial and Professional Regulation; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Dennis P. Larson
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- Practice location
- 509 E Waters Edge Dr, Belleville, IL 62221
- Phone
- (618) 235-1510
- Enumerated
- Nov 6, 2007
- Record last updated
- Nov 6, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (618) 235-1502
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Verify Dennis P. Larson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Dennis P. Larson among 7,238 internal medicine physician records in Illinois
Dennis P. Larson, M.D. is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2007, is newer than 39% of them.
- NPI issued2007 · 39% of these records are older, 55% newer
- In a Medicare fileNo · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2007 · 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 207R00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
27 internal medicine physician records list a practice address in Belleville
They are 27 of the 1,404 NPPES records with a practice address in Belleville, and 7,238 internal medicine physician records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 7,238 in Illinois → Every provider in Belleville → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Matthew Hageman, MDBelleville, IL 622211376540930
- Shadab Bhutto, M.D.Belleville, IL 622201396753018
- Radha Devendrappa, M.D.Belleville, IL 622201386959070
- Pankaj Kaul, M.D.Belleville, IL 622201376771105
- Duk Kim, M.D.Belleville, IL 622201245453695
- Lynne Nowak, MDBelleville, IL 622201174520746
- Leopoldo Pardo, MDBelleville, IL 622201114913274
- Mark Irwin, M.D.Belleville, IL 622231366433567
Common questions
What is Dennis P. Larson, M.D.'s NPI number?
Dennis P. Larson, M.D.'s National Provider Identifier (NPI) is 1003096140, issued on Nov 6, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Dennis P. Larson, M.D. located?
The NPPES record lists a practice address at 509 E Waters Edge Dr, Belleville, IL, 62221. Phone: (618) 235-1510. Providers update this record themselves, so call before visiting.
How can I verify Dennis P. Larson, M.D.'s license?
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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.