Doctor profile · Federal record
Dr. Grace Chang, M.D.
Internal Medicine Physician · Irvine, CA
- NPI 1992877625
- 20 yrs on file
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
17875 von Karman Ave Ste 430
Irvine, CA 926146212
(949) 872-2850
fax (949) 872-2855
Credentials & registration
- NPI registered
- November 2006 — 20 yrs on file
- Profile last updated
- April 11, 2022
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #A61499
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1992877625. Last verified May 11, 2026.Open Payments
Industry payments received
All-time total
$300
Transactions
2
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Inari Medical, Inc. | 1 | $176.73 | |
| ABBVIE INC. | 1 | $123.72 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
887
Patients
209
Total drug cost
$181,276
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Telmisartan | Generic | 126 | 36 | $6,985 |
| Progesterone (Progesterone, Micronized) | Brand | 98 | 28 | $7,697 |
| Metformin Hcl Er (Metformin Hcl) | Brand | 94 | 39 | $1,191 |
| Levothyroxine Sodium | Generic | 88 | 23 | $1,419 |
| Mounjaro (Tirzepatide) | Brand | 66 | 0 | $77,163 |
| Rosuvastatin Calcium | Generic | 65 | 22 | $2,303 |
| Potassium Chloride | Generic | 53 | 19 | $1,682 |
| Estradiol (Twice Weekly) (Estradiol) | Brand | 49 | 18 | $5,690 |
| Ozempic (Semaglutide) | Brand | 49 | 12 | $64,849 |
| Synthroid (Levothyroxine Sodium) | Brand | 44 | 12 | $3,429 |
Frequently asked questions
What is Dr. Grace Chang's medical specialty?
Dr. Grace Chang practices Internal Medicine Physician in Irvine, CA.
Where does Dr. Grace Chang practice?
Dr. Grace Chang practices at 17875 von Karman Ave Ste 430, Irvine, CA 926146212. Office phone: 9498722850.
What is Dr. Grace Chang's NPI?
Dr. Grace Chang's National Provider Identifier (NPI) is 1992877625, issued by NPPES.