Doctor profile · Federal record
Dr. Sophia Chang, M.D.
Rheumatology Physician (CMS: Rheumatology) · Pasco, WA
- NPI 1588658074
- Accepts Medicare
- 43 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
516 W Margaret St, Ste. #6
Pasco, WA 993015273
(509) 547-6086
fax (509) 547-0649
Credentials & registration
- NPI registered
- September 2005 — 21 yrs on file
- Profile last updated
- September 16, 2014
- Year of graduation
- 1983 — 43 yrs since
- Specialty taxonomy
- 207RR0500X — NUCC code
- State license (1)
- Washington #MD00036177
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1588658074. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
20,681
Distinct HCPCS
6
Medicare allowed
$349,711
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J1602 |
Injection, golimumab, 1 mg, for intravenous use | 18,350 | 16 | $13 | |
J0897 |
Injection, denosumab, 1 mg | 1,500 | 14 | $23 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 490 | 101 | $126 | |
96365 |
Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less | 137 | 23 | $64 | |
J7050 |
Infusion, normal saline solution, 250 cc | 135 | 21 | $1 | |
96372 |
Injection of drug or substance under skin or into muscle | 69 | 16 | $14 |
In context: peer comparison
Among 1 peers in Pasco Rheumatology Physician, average services per provider: 3,446. This provider delivers 6.0× the peer median.Open Payments
Industry payments received
All-time total
$37
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Genentech USA, INC. | 1 | $36.60 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
916
Patients
227
Total drug cost
$305,291
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Methotrexate (Methotrexate Sodium) | Brand | 233 | 59 | $7,615 |
| Hydroxychloroquine Sulfate | Generic | 175 | 47 | $11,652 |
| Leflunomide | Generic | 144 | 45 | $10,318 |
| Sulfasalazine Dr (Sulfasalazine) | Brand | 77 | 20 | $5,175 |
| Sulfasalazine | Generic | 75 | 19 | $2,338 |
| Prednisone | Generic | 62 | 25 | $393 |
| Gabapentin | Generic | 45 | 12 | $1,071 |
| Enbrel Sureclick (Etanercept) | Brand | 34 | 0 | $261,731 |
| Folic Acid | Generic | 22 | 0 | $67 |
| Alendronate Sodium | Generic | 20 | 0 | $260 |
Frequently asked questions
What is Dr. Sophia Chang's medical specialty?
Dr. Sophia Chang practices Rheumatology Physician in Pasco, WA.
Where does Dr. Sophia Chang practice?
Dr. Sophia Chang practices at 516 W Margaret St, Pasco, WA 993015273. Office phone: 5095476086.
What is Dr. Sophia Chang's NPI?
Dr. Sophia Chang's National Provider Identifier (NPI) is 1588658074, issued by NPPES.
Does Dr. Sophia Chang accept Medicare assignment?
Yes. Dr. Sophia Chang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Sophia Chang commonly perform?
Top Medicare-reported procedures in 2023: Injection, golimumab, 1 mg, for intravenous use (HCPCS J1602); Injection, denosumab, 1 mg (HCPCS J0897); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.