Doctor profile · Federal record

Dr. Hsiao-Siu Chang, MS, OTR/L, CHT

Occupational Therapist (CMS: Occupational Therapist in Private Practice) · Hand Occupational Therapist · Lynnwood, WA

  • NPI 1487616975
  • Accepts Medicare
  • 34 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
19031 33Rd Ave W Ste 102
Lynnwood, WA 980364731
(425) 741-0056
fax (425) 741-0057
Additional location
15808 Mill Creek Blvd Ste 120
Mill Creek, WA 980121500
(425) 225-6867
fax (425) 332-2494
Additional location
7320 216Th St Sw Ste 320
Edmonds, WA 980268006
(425) 673-3900
fax (425) 673-3910
Mailing address
7320 216Th St Sw Ste 320
Edmonds, WA 980268006

Credentials & registration

NPPES · NUCC
NPI registered
April 2006 — 20 yrs on file
Profile last updated
March 28, 2024
Year of graduation
1992 — 34 yrs since
Specialty taxonomy
225X00000X — NUCC code
State license (1)
Washington #OT00003180
Medicaid
WA #2126012

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1487616975. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
863
Distinct HCPCS
8
Medicare allowed
$25,157
HCPCS Description Services Patients Avg allowed
97112 Therapy procedure to re-educate brain-to-nerve-to-muscle function, each 15 minutes 357 35 $27
97530 Therapy procedure using functional activities 235 32 $33
97032 Application of electrical stimulation with therapist present, each 15 minutes 100 27 $12
97110 Therapy procedure using exercise to develop strength, endurance, range of motion, and flexibility, each 15 minutes 80 16 $24
97140 Therapy procedure using manual technique, each 15 minutes 45 14 $21
97165 Evaluation for occupational therapy, typically 30 minutes 18 17 $101
97166 Evaluation for occupational therapy, typically 45 minutes 16 16 $101
97535 Training for self-care or home management, each 15 minutes 12 12 $25

In context: peer comparison

Among 1 peers in Lynnwood Occupational Therapist, average services per provider: 107. This provider delivers 8.1× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Hsiao-Siu Chang's medical specialty?
Dr. Hsiao-Siu Chang practices Occupational Therapist in Lynnwood, WA.
Where does Dr. Hsiao-Siu Chang practice?
Dr. Hsiao-Siu Chang practices at 19031 33Rd Ave W Ste 102, Lynnwood, WA 980364731. Office phone: 4257410056.
What is Dr. Hsiao-Siu Chang's NPI?
Dr. Hsiao-Siu Chang's National Provider Identifier (NPI) is 1487616975, issued by NPPES.
Does Dr. Hsiao-Siu Chang accept Medicare assignment?
Yes. Dr. Hsiao-Siu Chang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Hsiao-Siu Chang commonly perform?
Top Medicare-reported procedures in 2023: Therapy procedure to re-educate brain-to-nerve-to-muscle function (HCPCS 97112); Therapy procedure using functional activities (HCPCS 97530); Application of electrical stimulation with therapist present (HCPCS 97032). Source: CMS Medicare Physician & Other Practitioners file.