Dr. Matthew Bui, M.D.
What this data tells you about Dr. Bui
Dr. Matthew Bui is an urology physician in Los Angeles, CA, with 20 years of NPI registration. Based on federal Medicare data, Dr. Bui performed 36,865 Medicare services across 19,594 unique beneficiaries.
Between the years covered by Open Payments, Dr. Bui received a total of $8,326 from 53 pharmaceutical and/or device companies across 337 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in urology physician. 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.
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 |
|---|---|---|---|
| Contrast dye for imaging (iodine-based) A contrast agent containing 300-399 mg/ml of iodine used to enhance imaging studies. It is administered per milliliter to improve the visibility of internal structures. |
1,900 | $0 | $3 |
| 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. |
1,825 | $98 | $400 |
| High osmolar contrast material, 250-299 mg/ml iodine concentration, per ml | 1,550 | $0 | $2 |
| Limited retroperitoneal ultrasound A focused ultrasound exam of the area behind the abdominal cavity to evaluate specific structures. |
1,500 | $47 | $300 |
| Manual urinalysis with microscopic examination A urine test performed manually without automated equipment. The sample is examined under a microscope to check for abnormalities. |
1,460 | $4 | $35 |
| Creatinine test (kidney function) A blood test that measures the amount of creatinine to assess kidney function or detect muscle injury. |
1,459 | $5 | $30 |
| Limited ultrasound of pelvis A focused ultrasound exam of the pelvic area to evaluate specific structures. This procedure provides images of the pelvis to assist in medical assessment. |
1,295 | $42 | $424 |
| Kidney function blood test panel | 1,221 | $8 | $50 |
| Complete blood count (CBC) with differential An automated laboratory test that measures the levels of red blood cells, white blood cells, and platelets in the blood, including a breakdown of the different types of white blood cells. |
1,214 | $8 | $25 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
1,212 | $8 | $20 |
| Liver function blood test panel | 1,200 | $8 | $30 |
| Uric acid level test A blood test that measures the level of uric acid in your body. Uric acid is a waste product formed when the body breaks down purines. |
1,197 | $4 | $25 |
| Free thyroxine (T4) test A blood test that measures the level of free thyroxine, a thyroid hormone, in the bloodstream. |
1,191 | $9 | $50 |
| Thyroid stimulating hormone (TSH) test A blood test that measures the level of thyroid stimulating hormone to evaluate thyroid function. |
1,191 | $16 | $50 |
| Vitamin D level test A blood test to measure the amount of Vitamin D-3 in your body. |
1,177 | $29 | $100 |
| Hemoglobin A1c test (diabetes monitoring) A blood test that measures your average blood sugar levels over the past two to three months. |
1,152 | $10 | $50 |
| Total estradiol level test A blood test that measures the total amount of estradiol, a form of estrogen, in the body. |
1,118 | $27 | $90 |
| Cholesterol level test A blood test that measures the amount of cholesterol in your body. |
1,115 | $4 | $34 |
| HDL cholesterol level test A blood test that measures the amount of high-density lipoprotein (HDL) cholesterol in your blood. HDL is often referred to as 'good' cholesterol. |
1,113 | $8 | $34 |
| Total testosterone level test A blood test that measures the total amount of testosterone in your body. This hormone is important for various bodily functions in both men and women. |
1,107 | $25 | $95 |
| PSA test (prostate cancer screening) | 1,104 | $18 | $70 |
| Sex hormone binding globulin level test A blood test that measures the level of sex hormone binding globulin, a protein that binds to sex hormones in the bloodstream. |
1,089 | $21 | $95 |
| Free PSA test A blood test that measures the amount of unbound prostate-specific antigen in the blood. |
984 | $18 | $90 |
| Complex urodynamic pressure flow study A test that measures the pressure of urine flow in the bladder during voiding to evaluate how well the bladder and urethra are functioning. |
893 | $334 | $699 |
| Infectious disease DNA/RNA test A laboratory test that uses a specific technique to detect the genetic material of an organism. This method amplifies the target DNA or RNA to identify the presence of the organism. |
793 | $34 | $100 |
| Complete pelvic ultrasound An imaging test using sound waves to create pictures of the organs and structures within the pelvis. |
395 | $96 | $426 |
| Drug injection, under skin or into muscle A procedure involving the administration of a medication or substance via injection into the subcutaneous tissue or muscle. |
354 | $12 | $49 |
| Bacterial culture, aerobic A laboratory test that grows and identifies bacteria capable of surviving in oxygen. The results help determine the presence of specific aerobic microorganisms. |
351 | $8 | $34 |
| Urine culture, bacterial colony count A laboratory test that measures the number of bacteria growing in a urine sample to help identify infections. |
333 | $8 | $30 |
| Prolactin level test A blood test that measures the amount of prolactin, a hormone produced by the pituitary gland that stimulates milk production, in the body. |
306 | $19 | $70 |
| Luteinizing hormone level test A blood test that measures the level of luteinizing hormone, a reproductive hormone. This test helps evaluate hormonal balance and reproductive function. |
290 | $18 | $50 |
| Follicle stimulating hormone (FSH) level A blood test to measure the level of follicle stimulating hormone, a reproductive hormone. |
289 | $18 | $70 |
| Injection, tobramycin sulfate, up to 80 mg | 249 | $2 | $31 |
| Antimicrobial drug evaluation Assessment of the patient's response to antibiotic, antifungal, or antiviral therapy. |
203 | $7 | $26 |
| Complete ultrasound of retroperitoneum An ultrasound examination of the structures located behind the abdominal cavity. |
173 | $97 | $425 |
| Ceftriaxone antibiotic injection This code represents the administration of ceftriaxone sodium, an antibiotic medication. The charge is calculated for every 250 mg of the drug administered. |
156 | $0 | $12 |
| Urethral dilation using endoscope A procedure to widen the urethra using a thin, lighted tube called an endoscope. This helps to open a narrowed urethral passage. |
150 | $267 | $1,200 |
| Leuprolide acetate (for depot suspension), 7.5 mg | 141 | $136 | $625 |
| 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. |
134 | $128 | $499 |
| 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. |
132 | $75 | $258 |
| Office visit for established patient An office visit for an existing patient that may not require the healthcare professional to be present. |
125 | $19 | $100 |
| Lower leg neurostimulator electrode insertion A procedure to place an electrode in the lower leg for neurostimulation therapy. |
100 | $102 | $500 |
| Electronic analysis of implanted neurostimulator This procedure involves electronically analyzing an implanted neurostimulator generator and performing simple programming for spinal cord or peripheral nerve stimulation. |
100 | $40 | $199 |
| Office visit, established patient, complex (40-54 min) An office or outpatient visit for an existing patient lasting between 40 and 54 minutes. This level of service is determined by the total time spent on the date of the encounter. |
78 | $145 | $449 |
| Office visit, established patient (10-19 min) An office visit for an existing patient lasting 10 to 19 minutes. The visit involves medical evaluation and management of the patient's condition. |
76 | $48 | $197 |
| Additional urethral implant in prostate Placement of an additional implant into the urethra within the prostate gland using an endoscope. |
75 | $817 | $2,000 |
| Hospital follow-up visit, low complexity Follow-up hospital visit for an established patient with straightforward or low-level medical decision making. The visit requires at least 25 minutes of time spent on the day of service. |
75 | $41 | $183 |
| Bladder irrigation and/or instillation This procedure involves flushing the bladder with fluid to clear it or introducing medication directly into the bladder. |
72 | $65 | $225 |
| Yeast/candida DNA test A laboratory test that uses an amplified probe technique to detect the presence of Candida species, a type of yeast, in a patient sample. |
61 | $34 | $100 |
| Chlamydia trachomatis nucleic acid amplification test A laboratory test that uses nucleic acid amplification to detect the presence of Chlamydia trachomatis bacteria in a sample. |
61 | $34 | $100 |
| Mycoplasma genitalium DNA/RNA test A laboratory test that uses DNA or RNA probes to detect the presence of Mycoplasma genitalium bacteria in a sample. |
61 | $34 | $100 |
| Gonorrhea nucleic acid amplification test A laboratory test that uses amplified probe techniques to detect the genetic material of gonorrhea bacteria. This method identifies the presence of the infection by analyzing nucleic acids from the sample. |
61 | $34 | $100 |
| Staphylococcus aureus DNA test A laboratory test that uses DNA amplification to detect the presence of Staphylococcus aureus bacteria in a sample. |
61 | $34 | $100 |
| Group B Strep DNA test A laboratory test that uses DNA amplification to detect the presence of Group B Streptococcus bacteria. |
61 | $34 | $100 |
| Trichomonas vaginalis nucleic acid test A laboratory test that uses an amplified probe technique to detect the genetic material of the Trichomonas vaginalis parasite. This method identifies the presence of the organism responsible for trichomoniasis. |
61 | $34 | $100 |
| Tumor marker analysis A laboratory test that analyzes a sample to detect the presence of tumor markers. These markers are substances that may be found in the blood, urine, or body tissues. |
60 | $20 | $90 |
| Immunologic organism identification test A laboratory test that uses immunologic methods to identify specific organisms in a sample, excluding immunofluorescence techniques. |
60 | $5 | $15 |
| Lipid panel (cholesterol and triglycerides) A blood test that measures cholesterol and triglyceride levels. |
53 | $13 | $90 |
| Subcutaneous or intramuscular chemotherapy injection This procedure involves administering anti-cancer hormonal medication through an injection into the tissue under the skin or into a muscle. |
46 | $31 | $149 |
| Cystourethroscopy A diagnostic exam of the bladder and urethra using an endoscope to visually inspect the urinary tract. |
43 | $206 | $500 |
| Transrectal ultrasound of the pelvis An ultrasound imaging procedure where a probe is inserted into the rectum to visualize pelvic structures. |
43 | $126 | $300 |
| Imaging of urinary tract with contrast An imaging test of the urinary tract performed after a contrast agent is injected to enhance visibility of the structures. |
42 | $20 | $275 |
| 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. |
41 | $142 | $527 |
| Sedation by physician, initial 15 minutes Administration of a drug to induce depression of consciousness by the physician performing a procedure. This code covers the initial 15 minutes of sedation for patients aged 5 years or older. |
40 | $46 | $250 |
| Ultrasound guidance for needle placement Use of ultrasound imaging to guide the precise placement of a needle during a medical procedure. |
38 | $52 | $425 |
| Prostate gland biopsy A procedure to remove small samples of tissue from the prostate gland for laboratory examination. |
37 | $209 | $1,000 |
| VRE nucleic acid detection test A laboratory test that uses amplified probe techniques to detect vancomycin-resistant Enterococcus (VRE) DNA in a patient sample. |
36 | $34 | $100 |
| MRSA nucleic acid detection test A laboratory test that uses amplified probe techniques to detect the genetic material of methicillin-resistant Staphylococcus aureus (MRSA) bacteria. |
36 | $34 | $100 |
| Suture suspension of urethra to control leakage using an endoscope A surgical procedure that uses an endoscope to place sutures that suspend the urethra in order to control urinary leakage. |
35 | $302 | $3,500 |
| Surgical removal of prostate and lymph nodes This procedure involves the surgical removal of the prostate gland and surrounding lymph nodes using an endoscope. |
35 | $941 | $10,000 |
| Endoscopic removal of pelvic lymph nodes, bilateral A surgical procedure to remove lymph nodes from both sides of the pelvis using an endoscope. This minimally invasive technique involves making small incisions to access and excise the tissue. |
34 | $268 | $4,500 |
| Electronic assessment of bladder emptying A test that uses electronic monitoring to evaluate how well the bladder empties urine. |
33 | $10 | $215 |
| CT scan of pelvis, without contrast A CT scan that uses X-rays to create detailed images of the pelvic area without the use of contrast dye. |
33 | $81 | $575 |
| Radiologist review of urinary bladder image A radiologist examines and interprets images of the urinary bladder to assess its structure and function. |
33 | $37 | $250 |
| Voiding cystourethrogram An imaging procedure that uses X-rays to visualize the bladder and urethra while urine is being passed. |
32 | $197 | $850 |
| Prostate needle biopsy pathology exam Laboratory examination of prostate tissue samples obtained via needle biopsy. The pathologist inspects the tissue both visually and under a microscope to identify any abnormalities. |
30 | $175 | $2,500 |
| Laser vaporization of prostate A procedure that uses a laser to remove excess prostate tissue through an endoscope. The process includes controlling any bleeding that occurs during the treatment. |
26 | $574 | $5,000 |
| Complicated insertion of bladder tube | 24 | $100 | $274 |
| Injection to cause erection A procedure involving an injection administered to induce an erection. |
22 | $65 | $300 |
| CT scan of abdomen and pelvis with contrast A CT scan of the abdomen and pelvis using contrast dye before and after administration to visualize internal structures. |
19 | $246 | $1,500 |
| Wet mounts, including preparations of vaginal, cervical or skin specimens | 17 | $17 | $35 |
| Ureteral stent insertion via endoscope A flexible tube is inserted into the ureter using an endoscope to keep the passage open and allow urine to flow from the kidney to the bladder. |
16 | $112 | $1,275 |
| Bladder incision with ureteral stent insertion A surgical procedure involving an incision into the bladder to insert a tube or stent into the ureter. |
15 | $204 | $1,500 |
| Urethral implant insertion in prostate A single implant is placed into the urethra within the prostate gland using an endoscope. |
15 | $1,178 | $2,500 |
| Laparoscopic partial prostate removal A minimally invasive surgical procedure to remove part of the prostate gland using a laparoscope. |
15 | $834 | $8,000 |
| Ultrasound of scrotum An imaging test that uses sound waves to create pictures of the scrotum and its contents. It helps evaluate the testicles and surrounding structures. |
12 | $93 | $296 |
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 (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
0.0 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 mixed practice specialist, with above-average Medicare volume (top 5% in CA), with low-engagement industry engagement, with 20 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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