Doctor profile · Federal record
Dr. Curtis Siu, MD
Internal Medicine Physician (CMS: Internal Medicine) · Laguna Hills, CA
- NPI 1386613081
- Accepts Medicare
- MIPS 74.6 / 100 · 2023
- 27 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
24221 Calle de la Louisa, Suite 200
Laguna Hills, CA 926537638
(949) 420-5988
fax (949) 465-8159 - Mailing address
-
Po Box 35380
Las Vegas, NV 891335380
Credentials & registration
- NPI registered
- March 2006 — 20 yrs on file
- Profile last updated
- November 29, 2025
- Year of graduation
- 1999 — 27 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #A74829
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1386613081. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
5,649
Distinct HCPCS
10
Medicare allowed
$245,300
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 638 | 211 | $140 | |
36415 |
Insertion of needle into vein for collection of blood sample | 558 | 195 | $8 | |
80053 |
Blood test, comprehensive group of blood chemicals | 437 | 188 | $10 | |
80061 |
Blood test, lipids (cholesterol and triglycerides) | 363 | 171 | $13 | |
83721 |
Ldl cholesterol level | 347 | 169 | $10 | |
83036 |
Hemoglobin a1c level | 267 | 111 | $9 | |
84443 |
Blood test, thyroid stimulating hormone (tsh) | 218 | 174 | $16 | |
84439 |
Thyroxine (thyroid chemical), free | 213 | 173 | $9 | |
99497 |
Advance care planning, first 30 minutes | 186 | 180 | $90 | |
82607 |
Cyanocobalamin (vitamin b-12) level | 178 | 162 | $15 |
In context: peer comparison
Among 14 peers in this city , average services per provider: 136. This provider delivers 42× the peer median.Open Payments
Industry payments received
All-time total
$54
Transactions
2
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| GlaxoSmithKline, LLC. | 2 | $54.37 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
3,350
Patients
922
Total drug cost
$58,537
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levothyroxine Sodium | Generic | 440 | 114 | $8,363 |
| Rosuvastatin Calcium | Generic | 397 | 122 | $13,284 |
| Amlodipine Besylate | Generic | 371 | 99 | $4,192 |
| Atorvastatin Calcium | Generic | 323 | 89 | $5,371 |
| Losartan Potassium | Generic | 318 | 91 | $5,766 |
| Metformin Hcl | Generic | 248 | 65 | $3,193 |
| Lisinopril | Generic | 186 | 49 | $2,167 |
| Furosemide | Generic | 174 | 49 | $1,715 |
| Metoprolol Succinate | Generic | 163 | 43 | $3,260 |
| Omeprazole | Generic | 143 | 48 | $2,663 |
Frequently asked questions
What is Dr. Curtis Siu's medical specialty?
Dr. Curtis Siu practices Internal Medicine Physician in Laguna Hills, CA.
Where does Dr. Curtis Siu practice?
Dr. Curtis Siu practices at 24221 Calle de la Louisa, Laguna Hills, CA 926537638. Office phone: 9494205988.
What is Dr. Curtis Siu's NPI?
Dr. Curtis Siu's National Provider Identifier (NPI) is 1386613081, issued by NPPES.
Does Dr. Curtis Siu accept Medicare assignment?
Yes. Dr. Curtis Siu accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Curtis Siu commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Blood test, comprehensive group of blood chemicals (HCPCS 80053). Source: CMS Medicare Physician & Other Practitioners file.