Doctor profile · Federal record
Dr. Sang-Ick Chang, MD
Family Medicine Physician (CMS: Family Practice) · Stanford, CA
- NPI 1720168099
- Accepts Medicare
- 39 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
300 Pasteur Dr
Stanford, CA 943052200
(650) 723-4000
Credentials & registration
- NPI registered
- October 2006 — 20 yrs on file
- Profile last updated
- April 16, 2024
- Year of graduation
- 1987 — 39 yrs since
- Specialty taxonomy
- 207Q00000X — NUCC code
- State license (1)
- California #G64586
- Medicaid
- CA #00G645860
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1720168099. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
197
Distinct HCPCS
4
Medicare allowed
$16,088
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 74 | 74 | $65 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 58 | 46 | $93 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 43 | 37 | $70 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 22 | 17 | $132 |
In context: peer comparison
Among 25 peers in this city , average services per provider: 45. This provider delivers 4.4× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
663
Patients
166
Total drug cost
$36,563
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 134 | 46 | $1,510 |
| Amlodipine Besylate | Generic | 79 | 24 | $547 |
| Losartan Potassium | Generic | 78 | 25 | $1,006 |
| Levothyroxine Sodium | Generic | 54 | 18 | $921 |
| Tamsulosin Hcl | Generic | 46 | 16 | $1,003 |
| Metoprolol Succinate | Generic | 44 | 13 | $677 |
| Lisinopril | Generic | 37 | 13 | $211 |
| Finasteride | Generic | 30 | 11 | $284 |
| Losartan-Hydrochlorothiazide (Losartan/Hydrochlorothiazide) | Brand | 28 | 0 | $261 |
| Chlorthalidone | Generic | 25 | 0 | $1,176 |
Hospital affiliations
Frequently asked questions
What is Dr. Sang-Ick Chang's medical specialty?
Dr. Sang-Ick Chang practices Family Medicine Physician in Stanford, CA.
Where does Dr. Sang-Ick Chang practice?
Dr. Sang-Ick Chang practices at 300 Pasteur Dr, Stanford, CA 943052200. Office phone: 6507234000.
What is Dr. Sang-Ick Chang's NPI?
Dr. Sang-Ick Chang's National Provider Identifier (NPI) is 1720168099, issued by NPPES.
Does Dr. Sang-Ick Chang accept Medicare assignment?
Yes. Dr. Sang-Ick Chang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Sang-Ick Chang commonly perform?
Top Medicare-reported procedures in 2023: Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439); Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.