Doctor profile · Federal record

Dr. Ross Larson, MD

Hospitalist Physician (CMS: Hospitalist) · Internal Medicine Physician · Student in an Organized Health Care Education/Training Program · Internal Medicine Physician · Evanston, IL

  • NPI 1992326284
  • Accepts Medicare
  • MIPS 90.4 / 100 · 2023
  • 6 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
2650 Ridge Ave., Im/ICU Hospitalists
Evanston, IL 60201
(847) 570-1010
fax (847) 733-5108
Additional location
2650 Ridge Ave Ste 1304
Evanston, IL 602011700
(847) 570-2700

Credentials & registration

NPPES · NUCC
NPI registered
April 2020 — 6 yrs on file
Profile last updated
August 1, 2023
Year of graduation
2020 — 6 yrs since
Specialty taxonomy
208M00000X — NUCC code
State licenses (2)
Illinois #036166063 · Illinois #125.077147

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1992326284. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$57
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Boston Scientific Corporation 1 $40.00
Amgen INC. 1 $17.37

By nature of payment

Food and Beverage
$57

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
44
Patients
0
Total drug cost
$702
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 22 0 $456
Amlodipine Besylate Generic 11 0 $134
Lisinopril Generic 11 0 $112

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Ross Larson's medical specialty?
Dr. Ross Larson practices Hospitalist Physician in Evanston, IL.
Where does Dr. Ross Larson practice?
Dr. Ross Larson practices at 2650 Ridge Ave., Evanston, IL 60201. Office phone: 8475701010.
What is Dr. Ross Larson's NPI?
Dr. Ross Larson's National Provider Identifier (NPI) is 1992326284, issued by NPPES.
Does Dr. Ross Larson accept Medicare assignment?
Yes. Dr. Ross Larson accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.