Physician
Nguyen and Mok Medical Group
Nguyen and Mok Medical Group was paid $984K by Medicaid between Jan 2018 and Dec 2024, across 41 billing codes. Its largest line is 99213, doctor's office visit, returning patient (routine) — 22% of everything it billed.
33Billing provider infoNGUYEN AND MOK MEDICAL GROUP
FOUNTAIN VALLEY, CA 92708
FOUNTAIN VALLEY, CA 92708
33aNPI1861594368assigned 09/04/2006
33bProvider typeInternal Medicine Physician
28Total paid$984K
24GClaims55,726
24DCodes billed41
24AFirst – last monthJan 2018 – Dec 2024
Compared with peers
Next to other Internal Medicine Physician providers in California
Rank by total paid#140 of 2,679
Median peer was paid$13K
This provider vs. median78×
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 | 9,189 | $156K | |
| 2019 | 7,587 | $159K | |
| 2020 | 6,957 | $133K | |
| 2021 | 8,651 | $155K | |
| 2022 | 8,371 | $153K | |
| 2023 | 8,019 | $139K | |
| 2024incomplete | 6,952 | $88K |
Box 24 · Service lines
What it billed for
| Code | Service | Share | Claims | Bene. records | Paid |
|---|---|---|---|---|---|
| 99213 | Doctor's office visit, returning patient (routine)Office or other outpatient visit for the evaluation and management of an established patient, low complexity | 22% | 16,667 | 14,231 | $215K |
| 96110 | Developmental screening, with scoring and documentation, per standardized instrument | 17% | 2,765 | 2,727 | $169K |
| 96156 | 13% | 3,945 | 3,896 | $131K | |
| 99394 | Periodic comprehensive preventive medicine reevaluation, established patient, adolescent (12-17 years) | 8.8% | 1,327 | 1,314 | $87K |
| G9920 | Screening performed and negative | 7.6% | 2,917 | 2,887 | $75K |
| 92551 | 5.0% | 3,806 | 3,769 | $49K | |
| 99393 | Periodic comprehensive preventive medicine reevaluation, established patient, late childhood (5-11 years) | 3.2% | 607 | 605 | $32K |
| G0442 | Annual alcohol misuse screening, 5 to 15 minutes | 2.9% | 2,200 | 2,181 | $29K |
| 90686 | 2.6% | 2,040 | 2,036 | $26K | |
| 99391 | Periodic comprehensive preventive medicine reevaluation, established patient, infant (under 1 year) | 2.3% | 598 | 589 | $23K |
| 99215 | Doctor's office visit, returning patient (complex)Prolong outpt/office vis | 1.9% | 152 | 152 | $19K |
| 96150 | 1.9% | 840 | 828 | $19K |
29 more codes
| 99395 | Periodic comprehensive preventive medicine reevaluation, established patient, 18-39 years | 1.3% | 111 | $13K |
| 85018 | 1.3% | 3,660 | $13K | |
| 81000 | 1.2% | 3,337 | $12K | |
| 96151 | 1.1% | 454 | $11K | |
| 99406 | 1.1% | 2,476 | $10K | |
| 99392 | Periodic comprehensive preventive medicine reevaluation, established patient, early childhood (1-4 years) | 1.1% | 224 | $10K |
| 99173 | <1% | 3,228 | $10K | |
| 99204 | Doctor's office visit, new patient (more involved) | <1% | 161 | $6K |
| 96127 | <1% | 1,505 | $6K | |
| G2012 | Brief communication technology-based service, e.g. virtual check-in, by a physician or other qualified health care professional who can report evaluation and management services, provided to an established patient, not originating from a related e/m service provided within the previous 7 days nor leading to an e/m service or procedure within the next 24 hours or soonest available appointment; 5-10 minutes of medical discussion | <1% | 203 | $4K |
| 86580 | <1% | 464 | $3K | |
| G0444 | Annual depression screening, 5 to 15 minutes | <1% | 365 | $2K |
| 81001 | <1% | 455 | $2K | |
| 90620 | <1% | 80 | $1K | |
| H0049 | Alcohol and/or drug screening | <1% | 45 | $1K |
| 90658 | <1% | 143 | $1K | |
| 85999 | <1% | 491 | $1K | |
| 90656 | <1% | 131 | $825.92 | |
| 99396 | Periodic comprehensive preventive medicine reevaluation, established patient, 40-64 years | <1% | 12 | $821.05 |
| 99212 | Office or other outpatient visit for the evaluation and management of an established patient, straightforward | <1% | 77 | $790.52 |
| 90649 | <1% | 60 | $540.00 | |
| 90685 | <1% | 57 | $504.00 | |
| 90715 | <1% | 13 | $333.25 | |
| 90734 | <1% | 15 | $135.00 | |
| 90700 | <1% | 16 | $126.00 | |
| 90713 | <1% | 13 | $90.00 | |
| 90670 | <1% | 14 | $90.00 | |
| 90662 | <1% | 12 | $69.44 | |
| G0008 | Administration of influenza virus vaccine | <1% | 40 | $36.74 |
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.
From NPPES
Who's on the registration
Authorized officialMOK, MINSEN (CO-OWNER)