ROBERT A LARSON DO
NPI 1902546963
Internal Medicine in Rockford, IL

Active since March 29, 2022PECOS EnrolledAccepts Medicare Assignment
5666 E STATE ST, ROCKFORD, IL 61108(815) 519-6087 Get Directions Write a Review

NPPES record last updated: June 5, 2026. Verified against the NPPES registry weekly; last sync: September 27, 2026.

Record update history: Jun 5, 2026, Apr 29, 2026, Apr 15, 2022 (3 updates tracked since 2022).

About Robert A Larson Do NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ROBERT A LARSON DO (NPI 1902546963) is an individual internal medicine provider in Rockford, Illinois, licensed in Illinois (036.179662) and active in the NPI registry since March 2022. He is enrolled in Medicare PECOS and is a graduate of Midwestern University, Chicago College Of Osteopathic Med (2022).

NPPES Registry Identity

NPI1902546963
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameROBERT A LARSONCredential: DO
Location Address5666 E STATE STRockford, IL 61108-2425
Mailing Address7431 Thomas DrLoves Park, IL 61111-5387 · (815) 519-6087
Sole ProprietorNo
Medical School CMSMidwestern University, Chicago College Of Osteopathic MedGraduated 2022
Enumeration DateMarch 29, 2022
Last NPPES UpdateJune 5, 20263 updates tracked since enumeration
NPPES CertifiedJune 5, 2026
✔ NPI 1902546963 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in IL · 036.179662
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
5666 E STATE ST, Rockford, IL 61108

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Robert A Larson Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1052889516
PECOS Enrollment IDI20260612000598
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 61108 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$127.46 typical visit price
range $54.80 – $168.44
Typical copayment $31.86 (range $13.70 – $42.11)
Most-billed visit code 99204
Established Patient
$97.25 typical visit price
range $17.16 – $136.56
Typical copayment $24.31 (range $4.29 – $34.14)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Specialist
5666 E STATE ST
ROCKFORD, IL 61108
Internal Medicine
5666 E STATE ST
ROCKFORD, IL 61108
Nurse Anesthetist, Certified Registered
5666 E STATE ST
ROCKFORD, IL 61108
Nurse Practitioner (Family)
5666 E STATE ST
ROCKFORD, IL 61108
Radiology (Diagnostic Radiology)
5666 E STATE ST
ROCKFORD, IL 61108
Nurse Practitioner (Family)
5666 E STATE ST
ROCKFORD, IL 61108
Physical Therapist
5666 E STATE ST
ROCKFORD, IL 61108
Internal Medicine
5666 E STATE ST
ROCKFORD, IL 61108

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Robert Larson's NPI number?

The NPI number for Robert Larson is 1902546963. It was assigned to this individual provider in the NPPES registry on March 29, 2022.

Where is Robert Larson located?

Robert Larson practices at 5666 E State St, Rockford, IL 61108. The listed phone number is (815) 519-6087.

What is Robert Larson's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Robert Larson enrolled in Medicare?

Yes. Robert Larson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Robert Larson was last updated on June 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.