Dennis Larson, M.D.
NPI 1003096140 · Internal Medicine Physician · Belleville, IL
Dennis Larson, M.D. is a Internal Medicine Physician provider in Belleville, IL (NPI 1003096140).
Provider details
- NPI number
- 1003096140
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-11-06
- Last updated
- 2007-11-06
Frequently asked questions
- What is Dennis Larson's NPI number?
- Dennis Larson's National Provider Identifier (NPI) is 1003096140, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Dennis Larson's specialty?
- Dennis Larson is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Dennis Larson located?
- Dennis Larson's practice location on file with NPPES is 509 E Waters Edge Dr, Belleville, IL 62221-7813.
- What is Dennis Larson's phone number?
- The practice phone number listed in the NPPES registry for Dennis Larson is (618) 235-1510.
- Is Dennis Larson's NPI active?
- Yes — Dennis Larson's NPI (1003096140) is active in the NPPES registry as of the last update on 2007-11-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.