Doctor profile · Federal record

Dr. Matas Orentas, DO

Rheumatology Physician (CMS: Internal Medicine) · Internal Medicine Physician · Elgin, IL

  • NPI 1396303004
  • Accepts Medicare
  • 7 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
1550 N Randall RD
Elgin, IL 601237876
(815) 569-6355
Additional location
4119 W Shamrock Ln
McHenry, IL 600508268
(815) 398-9491
fax (815) 381-7498

Credentials & registration

NPPES · NUCC
NPI registered
May 2019 — 7 yrs on file
Profile last updated
October 16, 2024
Year of graduation
2019 — 7 yrs since
Specialty taxonomy
207RR0500X — NUCC code
State license (1)
Illinois #036159472

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1396303004. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$901
Transactions
8
Manufacturers
7
Payer (manufacturer) Industry Txns Amount
GlaxoSmithKline, LLC. 2 $221.94
Integra LifeSciences Corporation 1 $137.20
Octapharma USA, Inc. 1 $124.87
DePuy Synthes Sales Inc. 1 $123.28
Janssen Scientific Affairs, LLC 1 $116.97
Amgen Inc. 1 $116.38
PFIZER INC. 1 $60.25

By nature of payment

Food and Beverage
$901

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
101
Patients
32
Total drug cost
$2,682
Drug Type Claims Patients Total cost
Prednisone Generic 48 20 $584
Gabapentin Generic 16 0 $328
Allopurinol Generic 13 0 $118
Diclofenac Sodium Generic 12 12 $500
Methotrexate (Methotrexate Sodium) Brand 12 0 $1,152

Frequently asked questions

Auto-generated from federal data
What is Dr. Matas Orentas's medical specialty?
Dr. Matas Orentas practices Rheumatology Physician in Elgin, IL.
Where does Dr. Matas Orentas practice?
Dr. Matas Orentas practices at 1550 N Randall RD, Elgin, IL 601237876. Office phone: 8155696355.
What is Dr. Matas Orentas's NPI?
Dr. Matas Orentas's National Provider Identifier (NPI) is 1396303004, issued by NPPES.
Does Dr. Matas Orentas accept Medicare assignment?
Yes. Dr. Matas Orentas accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.