Doctor profile · Federal record
Dr. Jason Chang, MD, MS
Internal Medicine Physician (CMS: Internal Medicine) · Milpitas, CA
- NPI 1104990704
- Accepts Medicare
- 34 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
770 E Calaveras Blvd
Milpitas, CA 950355491
(650) 945-2900 - Mailing address
-
1800 Harrison St Fl 7
Oakland, CA 946123466
Credentials & registration
- NPI registered
- November 2006 — 20 yrs on file
- Profile last updated
- December 9, 2021
- Year of graduation
- 1992 — 34 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #A83105
- Medicaid
- CA #00A831050
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1104990704. Last verified May 11, 2026.Open Payments
Industry payments received
All-time total
$162
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbott Laboratories | 1 | $162.38 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
2,688
Patients
973
Total drug cost
$37,062
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 550 | 196 | $7,991 |
| Lisinopril | Generic | 271 | 95 | $3,388 |
| Amlodipine Besylate | Generic | 233 | 83 | $3,171 |
| Losartan Potassium | Generic | 210 | 72 | $2,566 |
| Hydrochlorothiazide | Generic | 202 | 76 | $2,307 |
| Metformin Hcl | Generic | 165 | 57 | $1,996 |
| Tamsulosin Hcl | Generic | 147 | 58 | $2,757 |
| Simvastatin | Generic | 141 | 45 | $1,649 |
| Famotidine | Generic | 140 | 56 | $1,956 |
| Fluticasone Propionate | Generic | 133 | 69 | $1,961 |
Frequently asked questions
What is Dr. Jason Chang's medical specialty?
Dr. Jason Chang practices Internal Medicine Physician in Milpitas, CA.
Where does Dr. Jason Chang practice?
Dr. Jason Chang practices at 770 E Calaveras Blvd, Milpitas, CA 950355491. Office phone: 6509452900.
What is Dr. Jason Chang's NPI?
Dr. Jason Chang's National Provider Identifier (NPI) is 1104990704, issued by NPPES.
Does Dr. Jason Chang accept Medicare assignment?
Yes. Dr. Jason Chang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.