Doctor profile · Federal record
Dr. Andrea Ngo, MD
Hospitalist Physician (CMS: Internal Medicine) · Internal Medicine Physician · Fairfield, CA
- NPI 1699863464
- Accepts Medicare
- MIPS 78.5 / 100 · 2023
- 30 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1200 B Gale Wilson Blvd
Fairfield, CA 945333552
(707) 429-3600 - Mailing address
-
1525 Webster St, Suite A
Fairfield, CA 945334997
Credentials & registration
- NPI registered
- October 2006 — 20 yrs on file
- Profile last updated
- November 8, 2007
- Year of graduation
- 1996 — 30 yrs since
- Specialty taxonomy
- 208M00000X — NUCC code
- State license (1)
- California #A64486
- Medicaid
- CA #00A644860
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1699863464. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,015
Distinct HCPCS
7
Medicare allowed
$117,337
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 389 | 175 | $88 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 294 | 138 | $133 | |
99239 |
Hospital discharge day management, more than 30 minutes | 135 | 134 | $129 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 80 | 35 | $55 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 70 | 69 | $193 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 26 | 26 | $145 | |
99291 |
Critical care, first 30-74 minutes | 21 | 15 | $233 |
In context: peer comparison
Among 2 peers in Fairfield Hospitalist Physician, average services per provider: 152. This provider delivers 6.7× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
62
Patients
30
Total drug cost
$6,263
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Amlodipine Besylate | Generic | 24 | 16 | $140 |
| Metoprolol Succinate | Generic | 15 | 14 | $177 |
| Losartan Potassium | Generic | 12 | 0 | $112 |
| Eliquis (Apixaban) | Brand | 11 | 0 | $5,835 |
Frequently asked questions
What is Dr. Andrea Ngo's medical specialty?
Dr. Andrea Ngo practices Hospitalist Physician in Fairfield, CA.
Where does Dr. Andrea Ngo practice?
Dr. Andrea Ngo practices at 1200 B Gale Wilson Blvd, Fairfield, CA 945333552. Office phone: 7074293600.
What is Dr. Andrea Ngo's NPI?
Dr. Andrea Ngo's National Provider Identifier (NPI) is 1699863464, issued by NPPES.
Does Dr. Andrea Ngo accept Medicare assignment?
Yes. Dr. Andrea Ngo accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Andrea Ngo commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.