Medicare Enrolled
Dr. Hao Bui
Optician · Bakersfield, CA
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
Low-engagement
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating.
This page presents federal public records about Dr. Bui from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
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What this data tells you about Dr. Bui
Dr. Hao Bui is an optician specialist in Bakersfield, CA, with 18 years of NPI registration. Based on federal Medicare data, Dr. Bui performed 3,528 Medicare services across 2,713 unique beneficiaries.
Between the years covered by Open Payments, Dr. Bui received a total of $11,488 from 49 pharmaceutical and/or device companies across 428 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in optician. 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. Bui 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.
✓ 18 years in practice
▲ Top 24% volume in CA
$11,488 industry payments
Medicare Practice Summary
Medicare Utilization ↗3,528
Medicare services
Top 24% in CA for optician
2,713
Unique beneficiaries
$144
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~196 Medicare services per year of practice
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 (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. |
601 | $95 | $197 |
| Ultrasound of arm or leg veins An ultrasound exam of the veins in the arm or leg. The test uses sound waves to check blood flow and may include compression and other maneuvers. |
506 | $147 | $298 |
| Ultrasound of arm and leg arteries A non-invasive imaging test that uses sound waves to examine the blood vessels in the arms and legs. It evaluates blood flow and checks for blockages or other vascular issues. |
463 | $97 | $202 |
| Ultrasound of hemodialysis access An ultrasound imaging test used to evaluate the blood flow and structure of a hemodialysis access site. |
317 | $101 | $317 |
| 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. |
213 | $50 | $139 |
| Ultrasound of arm or leg veins An ultrasound exam of the veins in one arm or leg using compression and other maneuvers to assess blood flow and check for blockages. |
203 | $93 | $186 |
| Ultrasound of leg arteries or grafts An imaging test that uses sound waves to create pictures of the blood vessels in the legs or any surgical grafts present. |
202 | $193 | $388 |
| 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. |
171 | $122 | $254 |
| Ultrasound of head and neck blood flow, bilateral An ultrasound exam that uses sound waves to visualize and assess blood flow in the vessels of both the head and the neck. |
120 | $143 | $305 |
| Pre-op ultrasound of artery and vein blood flow for hemodialysis access An ultrasound exam to assess blood flow in the arteries and veins on both sides of the body before surgery for hemodialysis access. |
67 | $200 | $364 |
| Midazolam injection, per 1 mg Administration of midazolam hydrochloride, a sedative medication, measured in 1 mg increments. |
67 | $0 | $25 |
| Injection, fentanyl citrate, 0.1 mg | 67 | $1 | $25 |
| Complete ultrasound of aorta, vena cava, groin vessels or bypass grafts A complete ultrasound exam of the aorta, vena cava, groin vessels, or bypass grafts. This imaging test uses sound waves to visualize these blood vessels. |
65 | $138 | $288 |
| Ultrasound guidance for blood vessel access Use of ultrasound imaging to help locate and access a blood vessel. This guidance assists healthcare providers in performing procedures such as inserting IV lines or drawing blood. |
64 | $31 | $56 |
| Pre-operative ultrasound for hemodialysis access A complete ultrasound assessment of artery and vein blood flow performed before surgery to evaluate hemodialysis access. |
60 | $104 | $240 |
| Ultrasound of leg arteries or grafts An ultrasound exam that uses sound waves to create images of the arteries in one leg or any grafts present in that leg. |
55 | $100 | $230 |
| Strapping, unna boot | 46 | $52 | $86 |
| 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. |
42 | $133 | $294 |
| Chemical destruction of first incompetent vein with imaging guidance This procedure uses imaging guidance to chemically destroy the first incompetent vein in the arm or leg. |
35 | $1,522 | $4,400 |
| 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. |
35 | $60 | $106 |
| Radiologist review of arm or leg artery image A radiologist reviews images of the arteries in the arm or leg. This process involves analyzing the visual data to assess the blood vessels. |
21 | $118 | $251 |
| Hemodialysis circuit intervention with balloon dilation A procedure to insert a needle or tube into a hemodialysis circuit and dilate the dialysis segment using a balloon, with radiological review. |
20 | $976 | $1,852 |
| Ultrasound-guided injection into a single leg vein A chemical agent is injected into one incompetent vein in the leg while using ultrasound to guide the needle placement. |
17 | $911 | $2,336 |
| Arm vein relocation with artery connection for hemodialysis A surgical procedure to move a vein in the arm and connect it to an artery to create access for hemodialysis. |
17 | $484 | $1,059 |
| Needle or tube insertion into hemodialysis circuit with radiologist review A procedure involving the insertion of a needle or tube into a hemodialysis circuit, accompanied by a review of the procedure by a radiologist. |
16 | $551 | $871 |
| Removal of tunneled central venous tube This procedure involves the removal of a catheter that has been surgically placed under the skin and threaded into a large vein. |
14 | $124 | $263 |
| Radiofrequency vein destruction, first vein A procedure to treat the first incompetent vein in the arm or leg using radiofrequency energy and imaging guidance. |
12 | $934 | $3,850 |
| Balloon dilation of leg artery A procedure to widen a narrowed or blocked artery in the leg using a balloon catheter to restore blood flow. |
12 | $2,021 | $6,142 |
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. A higher procedure volume generally indicates more experience with that procedure.
1.8% high complexity
65.1% medium
33.1% routine
Industry Payment Transparency
Open Payments through 2024 ↗$11,488
Total received (2018-2024)
Avg $1,641/year across 7 years
Top 13% in CA for optician
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
49
Companies
428
Individual payments
All payments are legal and publicly reported · Not evidence of wrongdoing · How to interpret →
Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$11,391 (99.2%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$97 (0.8%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$1,423
2023
$1,619
2022
$1,661
2021
$1,063
2020
$549
2019
$2,177
2018
$2,996
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Smith+Nephew, Inc.
$312
Medtronic, Inc.
$298
W. L. Gore & Associates, Inc.
$186
LivaNova USA, Inc.
$172
Silk Road Medical, Inc.
$135
Penumbra, Inc.
$86
Cagent Vascular INC
$36
Reflow Medical Inc
$35
CVRx, Inc.
$29
Inari Medical, Inc.
$28
Tactile Systems Technology Inc
$27
Solventum Corporation
$26
Urgo Medical North America, LLC
$18
VERTEX PHARMACEUTICALS INCORPORATED
$17
LeMaitre Vascular, Inc.
$16
Top 3 companies account for 56.0% of 2024 payments
All-time payments by company (2018-2024) ›
Medtronic Vascular, Inc.
$1,882
Medtronic, Inc.
$1,455
Smith+Nephew, Inc.
$1,360
Cook Incorporated
$972
Silk Road Medical, Inc.
$820
LivaNova USA, Inc.
$721
Maquet Cardiovascular U.S. Sales, L.L.C.
$386
W. L. Gore & Associates, Inc.
$372
Tactile Systems Technology Inc
$287
LeMaitre Vascular, Inc.
$272
Cook Medical LLC
$211
Osiris Therapeutics Inc.
$190
CVRx, Inc.
$187
PFIZER INC.
$184
Janssen Pharmaceuticals, Inc
$170
Integra LifeSciences Corporation
$158
Boston Scientific Corporation
$152
Organogenesis Inc.
$150
Endologix, Inc.
$141
NESTLE HEALTHCARE NUTRITION INC.
$120
BOSTON SCIENTIFIC CORPORATION
$103
Penumbra, Inc.
$86
CryoLife, Inc.
$85
Urgo Medical North America, LLC
$79
Artivion, Inc.
$78
Veryan Medical Incorporated
$74
Cardiovascular Systems Inc.
$68
Medline Industries, Inc.
$64
ACELL, INC.
$62
ARGON MEDICAL DEVICES, INC.
$57
Smith & Nephew, Inc.
$54
Ethicon US, LLC
$53
Inari Medical, Inc.
$45
Teleflex LLC
$38
CARDIVA MEDICAL, INC.
$37
Cagent Vascular INC
$36
Reflow Medical Inc
$35
ABBVIE INC.
$27
Solventum Corporation
$26
TEI Medical Inc.
$25
Shockwave Medical, Inc
$22
Bard Peripheral Vascular, Inc.
$21
ConvaTec Inc.
$20
KCI USA, Inc.
$20
AngioDynamics, Inc.
$20
VERTEX PHARMACEUTICALS INCORPORATED
$17
PolyNovo North America LLC
$16
Avinger Inc.
$15
Terumo Medical Corporation
$14
Top 3 companies account for 40.9% of all-time payments
Associated products mentioned in payments ›
ABRE · ACTIV.A.C. · ALPHAVAC · ANASTOCLIP GC 8CM (MEDIUM) · ARTEGRAFT VASCULAR GRAFT · AZUR · Apligraf · Aptus Heli-FX · Barostim Neo System · BioMimics 3D Vascular Stent System · CARDIVA VASCADE 6/7F VCS · CHAMELEON · CHANTIX · COLLAGENASE SANTYL · CONCERTOTM · CONVATEC INC. · COOK · COOK MEDICAL AAA · COOK MEDICAL CUSTOM MADE DEVICE · COOK MEDICAL STENTS · COOK MEDICAL ZILVER PTX · COVERA · ClosureFast · Cook Medical AAA · Cook Medical Advanced Tech · DALVANCE · Diamondback Peripheral · ELIQUIS · ELUVIA · ENDURANT IIS · ENROUTE Transcarotid Neuroprotection System · ENROUTE Transcarotid Stent · EXCLUDER AAA Endoprosthesis · EXCLUDER Conformable AAA Endoprosthesis with Active Control · Endurant · FLEXITOUCH · FLIXENE · FLOWTRIEVER CATHETER · FUSION BIOLINE · Flexitouch Plus · GENERAL VASCULAR INTERVENTION · GENERAL - VASCULAR INTERVENTION · GORE EXCLUDER Iliac Branch Endoprosthesis · GORE TAG Thoracic Branch Endoprosthesis · GRAFIX · GRAFIX PL · GRAFIX/GRAFIXPL/STRAVIX · General - Vascular Intervention · HAWKONE · HYDRO LEMAITRE VALVULOTOME · HawkOne · Hyalomatrix Wound Device · IN.PACT ADMIRAL · Indigo System · LEVEREDGE · Manta · NITINOL · OASIS · OMNIGRAFT · ONYX FRONTIER · OPTION · Ovation · PANTHERIS · PICO · PICO 7 · PICO 7 Single Use Negative Pressure Wound Therapy · PICO Single Use Negative Pressure Wound Therapy · PRIMATRIX · PROCOL · PROLENE · Pico 14 · REGRANEX · RENASYS TOUCH · RESTOREFLO · RESTOREFLOW · S · STRAVIX · SURGICEL Family of Absorbable Hemostats · Santyl · Serrantor · TRIVEX SYSTEM · URGOK2 · V.A.C. DERMATAC · VALIANT CAPTIVIA · VASHE WOUND SOLUTION 250 ML (8.5 FL OZ) FLIP TOP CAP · VENASEAL · VNS - Sentiva · VNS THERAPY SENTIVA MODEL 1000 GENERATOR · VNS Therapy · VNS Therapy SenTiva Model 1000 Generator · Valiant Captivia · Varithena Administration Pack · Vascular · Vascular Closure Device · Vascular Lithotripsy · VenaSeal · XARELTO · ZENPEP · Zenith · Zilver Vena · iCAST
Should you be concerned? Payments from pharmaceutical and device companies are legal and common — 57% of U.S. physicians receive at least one. They often reflect legitimate consulting, research, or education. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →
Most payments (99%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Opticians within 10 mi
61
Per 100K population
6.7
County median income
$67,660
Nearest hospital
BAKERSFIELD BEHAVIORAL HEALTHCARE HOSPITAL, LLC
4.6 mi
4.6 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. Bui is a clinical cardiology specialist, with above-average Medicare volume (top 24% in CA), with low-engagement industry engagement in the top 13% of CA peers, with 18 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Bui experienced with office visit, established patient (30-39 min)?
Based on Medicare claims data, Dr. Bui performed 601 office visit, established patient (30-39 min) services. Research suggests that higher procedure volume is often associated with better outcomes, particularly for complex procedures. Note that Medicare data only captures patients aged 65 and older, so the total practice volume across all patients is likely higher.
Does Dr. Bui receive payments from pharmaceutical companies?
Yes. Dr. Bui received a total of $11,488 from 49 companies across 428 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common among physicians — 57% of all U.S. physicians receive at least one industry payment. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Bui's costs compare to other opticians in Bakersfield?
Dr. Bui's average Medicare payment per service is $144. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Bui) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating a long track record of practice, Medicare participation, and industry disclosure. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Each data source has its own update cycle. Provider registry data (NPPES) is updated weekly. Medicare enrollment (PECOS) is updated monthly. Medicare practice data has a ~2 year lag — the most recent available is typically 2 years prior. Industry payment data (Open Payments) is published annually, usually in June, covering the prior calendar year. We display the data date prominently on each section so you always know how current it is. See our data freshness policy →
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About this page
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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