Doctor profile · Federal record
Dr. Tsung Chang Chen, M.D.
Pulmonary Disease Physician (CMS: Internal Medicine) · Cupertino, CA
- NPI 1669546651
- Accepts Medicare
- 39 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
10430 S de Anza Blvd, E220
Cupertino, CA 950143019
(408) 257-8860
fax (408) 519-6556
Credentials & registration
- NPI registered
- November 2006 — 20 yrs on file
- Profile last updated
- July 8, 2007
- Year of graduation
- 1987 — 39 yrs since
- Specialty taxonomy
- 207RP1001X — NUCC code
- State license (1)
- California #A45142
- Medicaid
- CA #00A451420
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1669546651. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
581
Distinct HCPCS
4
Medicare allowed
$69,844
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99308 |
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes | 381 | 86 | $85 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 82 | 40 | $154 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 73 | 42 | $214 | |
99306 |
Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 45 | 43 | $202 |
In context: peer comparison
Among 1 peers in Cupertino Pulmonary Disease Physician, average services per provider: 145. This provider delivers 4.0× the peer median.Open Payments
Industry payments received
All-time total
$1,273
Transactions
33
Manufacturers
11
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Teva Pharmaceuticals USA, INC. | 4 | $308.41 | |
| Neurocrine Biosciences, INC. | 4 | $222.35 | |
| Sk Life Science, INC. | 7 | $212.47 | |
| Boehringer Ingelheim Pharmaceuticals, INC. | 6 | $191.87 | |
| AstraZeneca Pharmaceuticals Lp | 4 | $120.90 | |
| Gilead Sciences, INC. | 2 | $50.40 | |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | 2 | $46.92 | |
| Insmed, INC. | 1 | $31.84 | |
| Sumitomo Pharma America, INC. | 1 | $30.00 | |
| Janssen Pharmaceuticals, INC | 1 | $29.71 | |
| GlaxoSmithKline, LLC. | 1 | $28.07 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
2,581
Patients
362
Total drug cost
$133,437
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levothyroxine Sodium | Generic | 465 | 52 | $5,498 |
| Atorvastatin Calcium | Generic | 333 | 66 | $6,659 |
| Metformin Hcl | Generic | 288 | 47 | $3,936 |
| Amlodipine Besylate | Generic | 271 | 59 | $3,744 |
| Furosemide | Generic | 148 | 19 | $901 |
| Gabapentin | Generic | 142 | 18 | $4,786 |
| Ipratropium-Albuterol (Ipratropium/Albuterol Sulfate) | Brand | 140 | 15 | $3,825 |
| Jardiance (Empagliflozin) | Brand | 138 | 12 | $63,773 |
| Metoprolol Succinate | Generic | 131 | 29 | $2,684 |
| Enoxaparin Sodium | Generic | 109 | 0 | $7,232 |
Frequently asked questions
What is Dr. Tsung Chang Chen's medical specialty?
Dr. Tsung Chang Chen practices Pulmonary Disease Physician in Cupertino, CA.
Where does Dr. Tsung Chang Chen practice?
Dr. Tsung Chang Chen practices at 10430 S de Anza Blvd, Cupertino, CA 950143019. Office phone: 4082578860.
What is Dr. Tsung Chang Chen's NPI?
Dr. Tsung Chang Chen's National Provider Identifier (NPI) is 1669546651, issued by NPPES.
Does Dr. Tsung Chang Chen accept Medicare assignment?
Yes. Dr. Tsung Chang Chen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Tsung Chang Chen commonly perform?
Top Medicare-reported procedures in 2023: Subsequent nursing facility care with straightforward level of medical decision making (HCPCS 99308); Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.