Dr. Bac Nguyen, MD
What this data tells you about Dr. Nguyen
Dr. Bac Nguyen is an otolaryngology specialist in West Covina, CA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Nguyen performed 4,871 Medicare services across 2,303 unique beneficiaries.
Between the years covered by Open Payments, Dr. Nguyen received a total of $2,499 from 17 pharmaceutical and/or device companies across 76 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in otolaryngology. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Nguyen is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
Medicare Practice Summary
Medicare Utilization ↗Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
1,483 | $71 | $105 |
| Removal of foreign body in ear canal | 730 | $41 | $140 |
| Hospital follow-up visit, moderate complexity Follow-up hospital visit for an existing patient involving moderate medical decision making. The visit requires at least 35 minutes of time spent on the date of service. |
560 | $63 | $105 |
| Repair of eardrum | 516 | $320 | $465 |
| Nasal endoscopy A diagnostic procedure that uses a thin, lighted tube to examine the inside of the nasal passages. |
503 | $159 | $245 |
| Voice box exam with endoscope and mirror A diagnostic procedure to examine the voice box using an endoscope and mirror. |
407 | $74 | $105 |
| New patient office visit (30-44 min) An initial office visit for a new patient lasting between 30 and 44 minutes. This code is used when the total time spent on the date of the encounter falls within this range. |
137 | $85 | $140 |
| Simple removal of skin debris and drainage of mastoid cavity This procedure involves the simple removal of skin debris and the drainage of a mastoid cavity. |
118 | $46 | $155 |
| Initial hospital admission, high complexity Initial hospital inpatient or observation care for a new patient involving high-level medical decision making, with at least 75 minutes total time on the date of the encounter. |
99 | $138 | $245 |
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
58 | $100 | $145 |
| Endoscopic nasal polyp biopsy or removal A procedure to remove or sample nasal polyps or tissue using an endoscope. The endoscope allows the provider to view the nasal passages during the procedure. |
45 | $209 | $400 |
| Flexible laryngoscopy A diagnostic exam of the voice box using a flexible endoscope to visualize the larynx. |
42 | $101 | $200 |
| New patient office visit (45-59 min) An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter. |
39 | $128 | $200 |
| Hospital follow-up visit, high complexity Subsequent hospital inpatient or observation care for an existing patient involving high-level medical decision making, with at least 50 minutes total time on the date of the encounter. |
39 | $95 | $145 |
| Foreign body removal from voice box using endoscope A procedure to remove a foreign object from the voice box using an endoscope with a mirror for visualization. |
33 | $108 | $300 |
| Destruction of mouth growth or scar A procedure to remove or destroy abnormal tissue or scar tissue within the mouth. |
25 | $224 | $350 |
| Endoscopic control of nosebleed A procedure to stop bleeding in the nose using an endoscope to visualize the area. |
21 | $206 | $400 |
| Bronchoscopy through tracheostomy Examination of the windpipe and lung airways using a flexible tube with a camera inserted through a permanent opening in the neck. |
16 | $93 | $300 |
Industry Payment Transparency
Open Payments through 2024 ↗Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
Payments by company (2024)
All-time payments by company (2018-2024) ›
Associated products mentioned in payments ›
Most payments (96%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
2.8 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Nguyen is a clinical cardiology specialist, with above-average Medicare volume (top 3% in CA), with low-engagement industry engagement, with 19 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
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All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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