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.

IndividualActive

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

Practice location

509 E Waters Edge Dr

Belleville, IL 62221-7813

Phone: (618) 235-1510

Fax: (618) 235-1502

Street-level locationGet directions

More IL providers

Mailing address

509 E Waters Edge Dr

Belleville, IL 62221-7813

Specialties & taxonomies

Internal Medicine PhysicianPrimary207R00000X
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(82/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
19 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.

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.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

Registry dates

Frequently asked questions

Specialties & taxonomies

Profile Score

Frequently asked questions