Doctor profile · Federal record
Dr. Cynthia Leung, MD
Gastroenterology Physician (CMS: Gastroenterology) · Emergency Medicine Physician · Redwood City, CA
- NPI 1861570434
- Accepts Medicare
- 24 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2900 Whipple Ave, Suite 245
Redwood City, CA 940622843
(650) 365-3700
fax (650) 368-3836
Credentials & registration
- NPI registered
- November 2006 — 20 yrs on file
- Profile last updated
- September 13, 2011
- Year of graduation
- 2002 — 24 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- California #A84052
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1861570434. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
373
Distinct HCPCS
9
Medicare allowed
$51,156
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 83 | 66 | $151 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 60 | 58 | $147 | |
99152 |
Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | 45 | 42 | $13 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 44 | 44 | $195 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 37 | 31 | $108 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 33 | 32 | $120 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 31 | 31 | $133 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 25 | 25 | $223 | |
G0121 |
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | 15 | 15 | $196 |
In context: peer comparison
Among 2 peers in this city , average services per provider: 65. This provider delivers 5.7× the peer median.Open Payments
Industry payments received
All-time total
$1,368
Transactions
73
Manufacturers
13
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| ABBVIE INC. | 16 | $277.53 | |
| Celltrion USA Inc. | 10 | $207.24 | |
| Janssen Biotech, Inc. | 12 | $180.61 | |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC | 13 | $155.66 | |
| QOL Medical, LLC | 6 | $134.69 | |
| Madrigal Pharmaceuticals | 5 | $131.75 | |
| Regeneron Healthcare Solutions, Inc. | 2 | $58.68 | |
| Lilly USA, LLC | 2 | $50.54 | |
| Gilead Sciences, Inc. | 2 | $49.98 | |
| Takeda Pharmaceuticals U.S.A., Inc. | 2 | $38.24 | |
| Fresenius Kabi USA, LLC | 1 | $29.25 | |
| PFIZER INC. | 1 | $27.24 | |
| IRONWOOD PHARMACEUTICALS, INC | 1 | $26.53 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
164
Patients
64
Total drug cost
$42,938
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Omeprazole | Generic | 43 | 17 | $756 |
| Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,mag Sulfates) | Brand | 36 | 36 | $2,767 |
| Famotidine | Generic | 25 | 0 | $417 |
| Pantoprazole Sodium | Generic | 25 | 11 | $493 |
| Dexlansoprazole Dr (Dexlansoprazole) | Brand | 13 | 0 | $5,086 |
| Gavilyte-G (Peg3350/Sod Sulf,bicarb,cl/Kcl) | Brand | 11 | 0 | $210 |
| Xifaxan (Rifaximin) | Brand | 11 | 0 | $33,209 |
Hospital affiliations
Frequently asked questions
What is Dr. Cynthia Leung's medical specialty?
Dr. Cynthia Leung practices Gastroenterology Physician in Redwood City, CA.
Where does Dr. Cynthia Leung practice?
Dr. Cynthia Leung practices at 2900 Whipple Ave, Redwood City, CA 940622843. Office phone: 6503653700.
What is Dr. Cynthia Leung's NPI?
Dr. Cynthia Leung's National Provider Identifier (NPI) is 1861570434, issued by NPPES.
Does Dr. Cynthia Leung accept Medicare assignment?
Yes. Dr. Cynthia Leung accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Cynthia Leung commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Biopsy of large bowel using a flexible endoscope (HCPCS 45380); Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older) (HCPCS 99152). Source: CMS Medicare Physician & Other Practitioners file.