Doctor profile · Federal record
Dr. Ken Chiu, MD
Endocrinology, Diabetes & Metabolism Physician (CMS: Endocrinology) · Internal Medicine Physician · Duarte, CA
- NPI 1639126691
- Accepts Medicare
- 43 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1500 E Duarte RD
Duarte, CA 91010
(626) 359-8111 - Mailing address
-
Po Box 512185
Los Angeles, CA 900510185
Credentials & registration
- NPI registered
- May 2006 — 20 yrs on file
- Profile last updated
- November 25, 2020
- Year of graduation
- 1983 — 43 yrs since
- Specialty taxonomy
- 207RE0101X — NUCC code
- State license (1)
- California #A45428
- Medicaid
- CA #00A454280
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1639126691. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
121
Distinct HCPCS
2
Medicare allowed
$17,959
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 93 | 47 | $139 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 28 | 28 | $180 |
In context: peer comparison
Among 4 peers in this city , average services per provider: 104. This provider delivers 1.2× the peer median.Open Payments
Industry payments received
All-time total
$610
Transactions
21
Manufacturers
4
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbott Laboratories | 10 | $309.77 | |
| Novo Nordisk Inc | 9 | $161.96 | |
| Lilly USA, LLC | 1 | $125.00 | |
| SANOFI-AVENTIS U.S. LLC | 1 | $13.07 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
945
Patients
228
Total drug cost
$370,571
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Metformin Hcl Er (Metformin Hcl) | Brand | 132 | 41 | $1,823 |
| Atorvastatin Calcium | Generic | 110 | 34 | $1,182 |
| Glimepiride | Generic | 101 | 31 | $1,554 |
| Trulicity (Dulaglutide) | Brand | 96 | 19 | $137,397 |
| Ozempic (Semaglutide) | Brand | 92 | 24 | $108,334 |
| Losartan Potassium | Generic | 56 | 17 | $604 |
| Pioglitazone Hcl | Generic | 56 | 18 | $1,244 |
| Levothyroxine Sodium | Generic | 54 | 15 | $892 |
| Nano 2nd Gen Pen Needle (Pen Needle, Diabetic) | Brand | 50 | 18 | $3,410 |
| Farxiga (Dapagliflozin Propanediol) | Brand | 45 | 0 | $37,653 |
Hospital affiliations
Frequently asked questions
What is Dr. Ken Chiu's medical specialty?
Dr. Ken Chiu practices Endocrinology, Diabetes & Metabolism Physician in Duarte, CA.
Where does Dr. Ken Chiu practice?
Dr. Ken Chiu practices at 1500 E Duarte RD, Duarte, CA 91010. Office phone: 6263598111.
What is Dr. Ken Chiu's NPI?
Dr. Ken Chiu's National Provider Identifier (NPI) is 1639126691, issued by NPPES.
Does Dr. Ken Chiu accept Medicare assignment?
Yes. Dr. Ken Chiu accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ken Chiu commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99204). Source: CMS Medicare Physician & Other Practitioners file.