Nguyen, Chidao

Nguyen, Chidao was paid $381K by Medicaid between Jan 2018 and Jul 2023, across 5 billing codes. Its largest line is 99233, hospital visit by a doctor, follow-up day (complex) — 50% of everything it billed.

33Billing provider infoNGUYEN, CHIDAO
WESTMINSTER, CA 92683

33aNPI1780850198assigned 05/06/2008

33bProvider typeInternal Medicine Physician

28Total paid$381K

24GClaims11,072

24DCodes billed5

24AFirst – last monthJan 2018 – Jul 2023

Compared with peers

Next to other Internal Medicine Physician providers in California

Rank by total paid#284 of 2,679

Median peer was paid$13K

This provider vs. median30×

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	2,870	$81K
2019	1,627	$68K
2020	1,899	$54K
2021	1,745	$62K
2022	1,976	$70K
2023	955	$48K

Box 24 · Service lines

What it billed for

Code	Service	Share	Claims	Bene. records	Paid
99233	Hospital visit by a doctor, follow-up day (complex)Prolong inpt eval add15 m	50%	7,149	2,502	$192K
99223	Prolong inpt eval add15 m	26%	1,413	1,391	$98K
99239	Hospital discharge day management, more than 30 minutes	18%	2,007	1,971	$68K
99291	Critical care, evaluation and management of the critically ill patient, first 30-74 minutes	6.2%	490	175	$24K
99310	Prolong nursin fac eval 15m	0%	13	13	$0.00

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.