Doctor profile · Federal record
Dr. Catherine Ngo, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Laguna Hills, CA
- NPI 1558531129
- Accepts Medicare
- MIPS 84.4 / 100 · 2023
- 20 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
24221 Calle de la Louisa, Suite 300
Laguna Hills, CA 926537638
(949) 770-7163
fax (949) 465-0946
Credentials & registration
- NPI registered
- March 2008 — 18 yrs on file
- Profile last updated
- October 8, 2012
- Year of graduation
- 2006 — 20 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- California #A103043
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1558531129. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
544
Distinct HCPCS
10
Medicare allowed
$53,887
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
91037 |
Monitoring and recording of esophageal function through nasal tube with electrode | 63 | 63 | $52 | |
99202 |
New patient office or other outpatient visit, 15-29 minutes | 63 | 63 | $80 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 57 | 57 | $123 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 55 | 55 | $270 | |
91010 |
Study of esophagus to assess movement | 53 | 53 | $68 | |
91013 |
Study of esophagus to assess movement with stimulation or tube | 52 | 52 | $10 | |
91120 |
Test for tone and sensation of rectum and anus | 50 | 50 | $50 | |
91122 |
Study of rectum sensitivity and function | 48 | 48 | $91 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 30 | 30 | $183 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 25 | 25 | $95 |
In context: peer comparison
Among 5 peers in this city , average services per provider: 69. This provider delivers 7.9× the peer median.Open Payments
Industry payments received
All-time total
$720
Transactions
20
Manufacturers
8
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Enterra Medical, Inc. | 2 | $190.97 | |
| ABBVIE INC. | 10 | $171.91 | |
| STERIS CORPORATION | 1 | $168.94 | |
| Medtronic, Inc. | 2 | $82.24 | |
| GENZYME CORPORATION | 2 | $55.19 | |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC | 1 | $23.91 | |
| Celltrion USA Inc. | 1 | $13.56 | |
| Braintree Laboratories, Inc. | 1 | $13.10 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
136
Patients
97
Total drug cost
$4,888
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,mag Sulfates) | Brand | 43 | 42 | $3,061 |
| Omeprazole | Generic | 41 | 23 | $623 |
| Gavilyte-C (Peg3350/Sod Sulf,bicarb,cl/Kcl) | Brand | 21 | 21 | $329 |
| Dicyclomine Hcl | Generic | 19 | 11 | $742 |
| Famotidine | Generic | 12 | 0 | $132 |
Hospital affiliations
Frequently asked questions
What is Dr. Catherine Ngo's medical specialty?
Dr. Catherine Ngo practices Gastroenterology Physician in Laguna Hills, CA.
Where does Dr. Catherine Ngo practice?
Dr. Catherine Ngo practices at 24221 Calle de la Louisa, Laguna Hills, CA 926537638. Office phone: 9497707163.
What is Dr. Catherine Ngo's NPI?
Dr. Catherine Ngo's National Provider Identifier (NPI) is 1558531129, issued by NPPES.
Does Dr. Catherine Ngo accept Medicare assignment?
Yes. Dr. Catherine Ngo accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Catherine Ngo commonly perform?
Top Medicare-reported procedures in 2023: Monitoring and recording of esophageal function through nasal tube with electrode (HCPCS 91037); New patient office or other outpatient visit (HCPCS 99202); New patient office or other outpatient visit (HCPCS 99203). Source: CMS Medicare Physician & Other Practitioners file.