Physician
Nghiem, Elizabeth
Nghiem, Elizabeth was paid $554K by Medicaid between Jan 2018 and Nov 2024, across 8 billing codes. Its largest line is 99232, hospital visit by a doctor, follow-up day — 58% of everything it billed.
33Billing provider infoNGHIEM, ELIZABETH
FOUNTAIN VALLEY, CA 92708
FOUNTAIN VALLEY, CA 92708
33aNPI1083626212assigned 08/13/2006
33bProvider typeInfectious Disease Physician
28Total paid$554K
24GClaims24,615
24DCodes billed8
24AFirst – last monthJan 2018 – Nov 2024
Compared with peers
Next to other Infectious Disease Physician providers in California
Rank by total paid#35 of 222
Median peer was paid$61K
This provider vs. median9.1×
Peers share this provider's primary NPPES type and state. Size alone says nothing about billing quality: a big agency or a hospital system is expected to sit far above the median.
Box 24A · Dates of service
Paid by month
Paid that monthNov–Dec 2024: claims still arriving when the file was cut, so these months run low for every provider
By year, as a table
| Year | Claims | Paid | |
|---|---|---|---|
| 2018 | 6,198 | $130K | |
| 2019 | 1,810 | $64K | |
| 2020 | 4,383 | $82K | |
| 2021 | 4,082 | $89K | |
| 2022 | 4,553 | $102K | |
| 2023 | 2,527 | $45K | |
| 2024incomplete | 1,062 | $41K |
Box 24 · Service lines
What it billed for
| Code | Service | Share | Claims | Bene. records | Paid |
|---|---|---|---|---|---|
| 99232 | Hospital visit by a doctor, follow-up daySubsequent hospital care, per day, moderate complexity | 58% | 17,409 | 3,801 | $322K |
| 99291 | Critical care, evaluation and management of the critically ill patient, first 30-74 minutes | 15% | 2,054 | 530 | $84K |
| 99223 | Prolong inpt eval add15 m | 14% | 1,789 | 1,747 | $80K |
| 87426 | Infectious agent antigen detection, SARS-CoV-2 (COVID-19) | 10% | 1,574 | 1,172 | $56K |
| 99211 | Office or other outpatient visit for the evaluation and management of an established patient, minimal severity | 1.4% | 1,585 | 1,189 | $7K |
| 87635 | Infectious agent detection by nucleic acid; SARS-CoV-2 (COVID-19), amplified probe | <1% | 40 | 37 | $2K |
| G8427 | Eligible clinician attests to documenting in the medical record they obtained, updated, or reviewed the patient's current medications | <1% | 151 | 145 | $2K |
| 99204 | Doctor's office visit, new patient (more involved)Office or other outpatient visit for the evaluation and management of a new patient, moderate complexity | <1% | 13 | 13 | $889.97 |
Claims and beneficiary counts add up across code × month rows, so one patient seen every month counts many times. Rows with fewer than 12 claims are suppressed by HHS, so small lines can be missing.