Doctor profile · Federal record
Dr. Olivia Chang, M.D., M.P.H.
Female Pelvic Medicine and Reconstructive Surgery (Obstetrics & Gynecology) Physician (CMS: Obstetrics/Gynecology) · Obstetrics & Gynecology Physician · Obstetrics & Gynecology Physician · Orange, CA
- NPI 1881936862
- Accepts Medicare
- 13 yrs in practice
- Licensed in 2 states
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
101 the City Dr S
Orange, CA 928683201
(714) 880-7812 - Additional location
-
1959 Ne Pacific St
Seattle, WA 981950001
(206) 520-5000 - Mailing address
-
200 S Manchester Ave Ste 300
Orange, CA 928683219
Credentials & registration
- NPI registered
- March 2013 — 13 yrs on file
- Profile last updated
- February 3, 2023
- Year of graduation
- 2013 — 13 yrs since
- Specialty taxonomy
- 207VF0040X — NUCC code
- State licenses (2)
- California #A182272 · Washington #MD61185981
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1881936862. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
582
Distinct HCPCS
10
Medicare allowed
$81,510
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99204 |
New patient office or other outpatient visit, 45-59 minutes | 74 | 74 | $180 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 59 | 59 | $140 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 51 | 43 | $139 | |
51701 |
Insertion of temporary bladder tube | 49 | 48 | $49 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 46 | 40 | $103 | |
51701 |
Insertion of temporary bladder tube | 30 | 30 | $26 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 29 | 25 | $191 | |
51728 |
Complex measurement of pressure of urine flow in bladder with voiding pressure studies | 26 | 26 | $411 | |
51784 |
Non-needle measurement and recording of electrical activity of muscles at bladder and bowel openings | 26 | 26 | $35 | |
51797 |
Insertion of device into abdomen with pressure and urine flow rate study | 26 | 26 | $223 |
In context: peer comparison
Among 2 peers in Orange Female Pelvic Medicine and Reconstructive Surgery (Obstetrics & Gynecology) Physician, average services per provider: 261. This provider delivers 2.2× the peer median.Open Payments
Industry payments received
All-time total
$979
Transactions
22
Manufacturers
7
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Bluewind Medical | 2 | $231.89 | |
| Axonics, INC. | 2 | $201.95 | |
| Medtronic, INC. | 12 | $185.04 | |
| Coloplast Corp | 2 | $152.45 | |
| Boston Scientific Corporation | 1 | $130.93 | |
| Pfizer INC. | 2 | $47.10 | |
| Regeneron Healthcare Solutions, INC. | 1 | $30.13 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
324
Patients
170
Total drug cost
$164,798
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Myrbetriq (Mirabegron) | Brand | 100 | 44 | $105,230 |
| Estradiol | Generic | 62 | 47 | $6,475 |
| Gemtesa (Vibegron) | Brand | 52 | 21 | $49,709 |
| Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) | Brand | 50 | 41 | $670 |
| Nitrofurantoin Mono-Macro (Nitrofurantoin Monohyd/M-Cryst) | Brand | 23 | 17 | $881 |
| Fosfomycin Tromethamine | Generic | 13 | 0 | $1,533 |
| Cephalexin | Generic | 12 | 0 | $196 |
| Ciprofloxacin Hcl | Generic | 12 | 0 | $104 |
Frequently asked questions
What is Dr. Olivia Chang's medical specialty?
Dr. Olivia Chang practices Female Pelvic Medicine and Reconstructive Surgery (Obstetrics & Gynecology) Physician in Orange, CA.
Where does Dr. Olivia Chang practice?
Dr. Olivia Chang practices at 101 the City Dr S, Orange, CA 928683201. Office phone: 7148807812.
What is Dr. Olivia Chang's NPI?
Dr. Olivia Chang's National Provider Identifier (NPI) is 1881936862, issued by NPPES.
Does Dr. Olivia Chang accept Medicare assignment?
Yes. Dr. Olivia Chang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Olivia Chang commonly perform?
Top Medicare-reported procedures in 2023: New patient office or other outpatient visit (HCPCS 99204); New patient office or other outpatient visit (HCPCS 99204); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.