Doctor profile · Federal record

Dr. Mareen Itty, MOT

Occupational Therapist (CMS: Occupational Therapist in Private Practice) · Occupational Therapist · Gurnee, IL

  • NPI 1821445404
  • Accepts Medicare
  • MIPS 78.6 / 100 · 2023
  • 11 yrs in practice
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
350 S Greenleaf St, Suite 403
Gurnee, IL 600315709
(847) 596-7640
fax (847) 596-7641
Additional location
13400 E Shea Blvd
Scottsdale, AZ 852595452
(480) 301-8000
Mailing address
13400 E Shea Blvd
Scottsdale, AZ 852595452

Credentials & registration

NPPES · NUCC
NPI registered
May 2016 — 10 yrs on file
Profile last updated
October 20, 2020
Year of graduation
2015 — 11 yrs since
Specialty taxonomy
225X00000X — NUCC code
State licenses (2)
Arizona #OTH-007857 · Illinois #056011389

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1821445404. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
818
Distinct HCPCS
5
Medicare allowed
$24,353
HCPCS Description Services Patients Avg allowed
97110 Therapy procedure using exercise to develop strength, endurance, range of motion, and flexibility, each 15 minutes 287 58 $25
97140 Therapy procedure using manual technique, each 15 minutes 250 44 $22
97530 Therapy procedure using functional activities 158 70 $30
97165 Evaluation for occupational therapy, typically 30 minutes 64 63 $99
97035 Application of ultrasound, each 15 minutes 59 12 $11

In context: peer comparison

Among 2 peers in this city , average services per provider: 247. This provider delivers 3.3× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Mareen Itty's medical specialty?
Dr. Mareen Itty practices Occupational Therapist in Gurnee, IL.
Where does Dr. Mareen Itty practice?
Dr. Mareen Itty practices at 350 S Greenleaf St, Gurnee, IL 600315709. Office phone: 8475967640.
What is Dr. Mareen Itty's NPI?
Dr. Mareen Itty's National Provider Identifier (NPI) is 1821445404, issued by NPPES.
Does Dr. Mareen Itty accept Medicare assignment?
Yes. Dr. Mareen Itty accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mareen Itty commonly perform?
Top Medicare-reported procedures in 2023: Therapy procedure using exercise to develop strength, endurance, range of motion, and flexibility (HCPCS 97110); Therapy procedure using manual technique (HCPCS 97140); Therapy procedure using functional activities (HCPCS 97530). Source: CMS Medicare Physician & Other Practitioners file.