Jeffrey Larson, M.D.
NPI 1144516097 · Family Medicine Physician · Naperville, IL
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jeffrey Larson, M.D. is a Family Medicine Physician provider in Naperville, IL (NPI 1144516097).
Provider details
- NPI number
- 1144516097
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 125060226 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
14 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$116 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-06-20
- Last updated
- 2022-06-14
- Certified
- 2022-06-14
Frequently asked questions
- What is Jeffrey Larson's NPI number?
- Jeffrey Larson's National Provider Identifier (NPI) is 1144516097, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jeffrey Larson's specialty?
- Jeffrey Larson is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jeffrey Larson located?
- Jeffrey Larson's practice location on file with NPPES is 808 Rickert Dr Ste 103, Naperville, IL 60540-0908.
- What is Jeffrey Larson's phone number?
- The practice phone number listed in the NPPES registry for Jeffrey Larson is (331) 551-5854.
- Does Jeffrey Larson accept Medicare?
- Jeffrey Larson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jeffrey Larson's NPI active?
- Yes — Jeffrey Larson's NPI (1144516097) is active in the NPPES registry as of the last update on 2022-06-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.