Physician
Theresa Thanh Ngoc Nguyen, MD, INC.
Theresa Thanh Ngoc Nguyen, MD, INC. was paid $77K by Medicaid between Jan 2018 and Dec 2024, across 22 billing codes. Its largest line is 99213, doctor's office visit, returning patient (routine) — 43% of everything it billed.
33Billing provider infoTHERESA THANH NGOC NGUYEN, MD, INC.
WESTMINSTER, CA 92683
WESTMINSTER, CA 92683
33aNPI1750667192assigned 10/31/2011
33bProvider typeInternal Medicine Physician
28Total paid$77K
24GClaims14,898
24DCodes billed22
24AFirst – last monthJan 2018 – Dec 2024
Compared with peers
Next to other Internal Medicine Physician providers in California
Rank by total paid#732 of 2,679
Median peer was paid$13K
This provider vs. median6.1×
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 | 2,969 | $11K | |
| 2019 | 4,021 | $33K | |
| 2020 | 2,231 | $19K | |
| 2021 | 1,805 | $8K | |
| 2022 | 1,774 | $5K | |
| 2023 | 1,324 | $970.30 | |
| 2024incomplete | 774 | $211.56 |
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 | 43% | 9,127 | 7,828 | $33K |
| 90471 | Immunization administration (includes percutaneous, intradermal, subcutaneous, or intramuscular injections), 1 vaccine | 9.3% | 1,376 | 1,343 | $7K |
| 3074F | 5.3% | 511 | 509 | $4K | |
| 90674 | 5.2% | 205 | 205 | $4K | |
| 90688 | 5.2% | 161 | 161 | $4K | |
| 3008F | 5.0% | 717 | 713 | $4K | |
| 99395 | Periodic comprehensive preventive medicine reevaluation, established patient, 18-39 years | 4.7% | 131 | 120 | $4K |
| 1036F | 4.6% | 536 | 533 | $4K | |
| 90686 | 4.6% | 402 | 402 | $4K | |
| 3078F | 3.6% | 485 | 483 | $3K | |
| 96151 | 3.3% | 237 | 237 | $3K | |
| 96150 | 2.2% | 75 | 75 | $2K |
10 more codes
| 99396 | Periodic comprehensive preventive medicine reevaluation, established patient, 40-64 years | <1% | 587 | $634.47 |
| 90715 | <1% | 55 | $583.16 | |
| 99214 | Doctor's office visit, returning patient (more involved) | <1% | 39 | $525.00 |
| 96156 | <1% | 39 | $440.61 | |
| 4274F | <1% | 57 | $243.30 | |
| 3014F | <1% | 47 | $153.79 | |
| 1159F | <1% | 17 | $48.26 | |
| 3079F | <1% | 14 | $22.50 | |
| 99215 | Doctor's office visit, returning patient (complex) | 0% | 63 | $0.00 |
| 1160F | 0% | 17 | $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.
From NPPES
Who's on the registration
Authorized officialNGUYEN, THANH (OWNER)
| Provider | Location | Paid |
|---|---|---|
| Thanh Quoc Nguyen DDS, INC | Santa Ana, CA | $1.53M |
| Stanislaus Kidney and Hypertension | Merced, CA | $1.31M |
| TQ Pediatrics, INC. | Fountain Valley, CA | $1.30M |
| Internal Medicine Consultants, LLC | Mesa, AZ | $335K |
| Quynh's Pharmacy INC | Seattle, WA | $29K |
| Thanh Minh Nguyen, M.D., INC. | Garden Grove, CA | $4K |
Matched on the authorized-official name exactly as entered in NPPES. A common name can match unrelated people.