Medicare Enrolled
Dr. Alexa Chai, M.D.
Urology Physician · Los Alamitos, 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. Chai 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 →
Are you Dr. Chai?
Request a correction or review of any data shown here. Provider portal →
What this data tells you about Dr. Chai
Dr. Alexa Chai is an urology physician in Los Alamitos, CA, with 16 years of NPI registration. Based on federal Medicare data, Dr. Chai performed 5,537 Medicare services across 2,186 unique beneficiaries.
Between the years covered by Open Payments, Dr. Chai received a total of $4,252 from 40 pharmaceutical and/or device companies across 212 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. Chai 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.
✓ 16 years in practice
▲ Top 18% volume in CA
$4,252 industry payments
Medicare Practice Summary
Medicare Utilization ↗5,537
Medicare services
Top 18% in CA for urology physician
2,186
Unique beneficiaries
$38
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~346 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 |
|---|---|---|---|
| Botox injection, per unit An injection of onabotulinumtoxinA, a medication used to temporarily relax muscles or reduce gland activity. The dose is measured in units, with this code representing a single unit administered. |
2,600 | $5 | $10 |
| 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. |
704 | $102 | $150 |
| Urinalysis, manual A manual laboratory examination of a urine sample to check for various substances and cells. |
604 | $3 | $4 |
| Manual urinalysis with microscopic examination A urine test performed manually without automated equipment. The sample is examined under a microscope to check for abnormalities. |
358 | $4 | $5 |
| Bladder ultrasound after voiding An ultrasound scan performed after urination to measure the amount of urine remaining in the bladder. |
266 | $10 | $25 |
| 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. |
193 | $132 | $195 |
| 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. |
174 | $71 | $105 |
| Complete ultrasound of retroperitoneum An ultrasound examination of the structures located behind the abdominal cavity. |
164 | $89 | $140 |
| Complete pelvic ultrasound An imaging test using sound waves to create pictures of the organs and structures within the pelvis. |
135 | $58 | $120 |
| Cystourethroscopy A diagnostic exam of the bladder and urethra using an endoscope to visually inspect the urinary tract. |
125 | $212 | $285 |
| Cystoscopy with chemical ablation of bladder A procedure where a camera is used to examine the bladder and a chemical agent is applied to destroy abnormal tissue. |
26 | $359 | $450 |
| Simple insertion of temporary bladder tube A procedure to place a temporary tube into the bladder. This allows for the drainage of urine from the bladder. |
24 | $56 | $94 |
| Insertion of temporary bladder tube | 23 | $37 | $88 |
| Electronic assessment of bladder emptying A test that uses electronic monitoring to evaluate how well the bladder empties urine. |
20 | $8 | $30 |
| 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. |
18 | $17 | $21 |
| Complex urodynamic pressure measurement A test that measures the pressure of urine flow in the bladder along with urethral and voiding pressures. |
15 | $356 | $450 |
| Non-needle muscle activity measurement of bladder and bowel openings This procedure measures and records the electrical activity of muscles at the bladder and bowel openings without using needles. |
15 | $29 | $200 |
| Abdominal device insertion with pressure and urine flow study A procedure involving the placement of a device into the abdomen, accompanied by a study to measure pressure and urine flow rate. |
15 | $120 | $150 |
| 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. |
13 | $149 | $250 |
| Shock wave crushing of kidney stones A procedure that uses shock waves to break kidney stones into smaller pieces so they can pass more easily from the body. |
12 | $492 | $650 |
| Prostate gland biopsy A procedure to remove small samples of tissue from the prostate gland for laboratory examination. |
11 | $209 | $263 |
| Transrectal ultrasound of the pelvis An ultrasound imaging procedure where a probe is inserted into the rectum to visualize pelvic structures. |
11 | $114 | $150 |
| Complete ultrasound of abdomen and pelvis blood flow This procedure uses sound waves to create images of blood flow in the arteries and veins of the abdomen and pelvis. It evaluates the rate and direction of blood movement within these vessels. |
11 | $205 | $255 |
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.
0.5% high complexity
58.1% medium
41.4% routine
Industry Payment Transparency
Open Payments through 2024 ↗$4,252
Total received (2018-2024)
Avg $607/year across 7 years
Top 37% in CA for urology physician
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
40
Companies
212
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
$3,797 (89.3%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$455 (10.7%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$519
2023
$444
2022
$618
2021
$1,139
2020
$421
2019
$686
2018
$425
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
ABBVIE INC.
$212
Teleflex LLC
$71
ACCORD HEALTHCARE, INC.
$54
PROCEPT BioRobotics Corporation
$30
Advanced Bionics, LLC
$29
IMMUNITYBIO, INC.
$25
Sumitomo Pharma America, Inc.
$23
Janssen Biotech, Inc.
$20
Boston Scientific Corporation
$20
COLOPLAST CORP
$19
Medtronic, Inc.
$18
Top 3 companies account for 64.8% of 2024 payments
All-time payments by company (2018-2024) ›
Astellas Pharma US Inc
$922
ABBVIE INC.
$459
AbbVie Inc.
$449
Coloplast Corp
$275
Allergan, Inc.
$218
COLOPLAST CORP
$184
Janssen Biotech, Inc.
$176
Teleflex LLC
$137
Medtronic, Inc.
$127
PFIZER INC.
$126
Myovant Sciences Inc.
$112
Sumitomo Pharma America, Inc.
$97
Boston Scientific Corporation
$92
AbbVie, Inc.
$84
UroGen Pharma, Inc.
$68
Blue Earth Diagnostics Limited
$59
PROCEPT BioRobotics Corporation
$55
ACCORD HEALTHCARE, INC.
$54
Ambu Inc.
$42
Telix Pharmaceuticals
$41
UROVANT SCIENCES INC
$37
Acerus Pharmaceuticals Corporation
$34
Progenics Pharmaceuticals, Inc.
$32
Olympus America Inc.
$31
Advanced Bionics, LLC
$29
Ferring Pharmaceuticals Inc.
$28
Hollister Incorporated
$27
Tolmar, Inc.
$27
Allergan Inc.
$26
IMMUNITYBIO, INC.
$25
Photocure Inc
$23
Merck Sharp & Dohme LLC
$22
Merck Sharp & Dohme Corporation
$21
C. R. Bard, Inc. & Subsidiaries
$20
Otsuka America Pharmaceutical, Inc.
$20
E.R. Squibb & Sons, L.L.C.
$18
180 Medical, Inc.
$17
Egalet US Inc
$13
Mission Pharmacal Company
$12
SRS Medical Systems, Inc.
$12
Top 3 companies account for 43.0% of all-time payments
Associated products mentioned in payments ›
ANKTIVA · AQUABEAM ROBOTIC SYSTEM · AQUABEAM SYSTEM · Axumin · BOTOX · CAMCEVI · CONTINENCE CARE · Cysview · ERLEADA · GEMTESA · GENERAL BPH · HIRES ULTRA CI HIFOCUS MS ELECTRODE · ILLUCCIX · INTERSTIM · JATENZO · JELMYTO · JYNARQUE · KEYTRUDA · LUPRON DEPOT · Luja Coude · Lupron · Lupron Depot · MYRBETRIQ · NOCDURNA · Natesto · OPDIVO · ORGOVYX · Olympus Cysto-Resection · PREMARIN · PYLARIFY · REZUM · Rezum Generator · SOLESTA · SPEEDICATH · SPRIX · SpaceOAR VUE System - 10mL · SpeediCath · TOVIAZ · UROLIFT · Uribel · UroCuff · UroLift System · VAPRO · VaPro Plus Pocket · XTANDI
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 (89%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Urology physicians within 10 mi
299
Per 100K population
9.4
County median income
$113,702
Nearest hospital
UCI HEALTH - LOS ALAMITOS
0.0 mi
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. Chai is a clinical cardiology specialist, with above-average Medicare volume (top 18% in CA), with low-engagement industry engagement, with 16 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. Chai experienced with botox injection, per unit?
Based on Medicare claims data, Dr. Chai performed 2,600 botox injection, per unit 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. Chai receive payments from pharmaceutical companies?
Yes. Dr. Chai received a total of $4,252 from 40 companies across 212 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. Chai's costs compare to other urology physicians in Los Alamitos?
Dr. Chai's average Medicare payment per service is $38. 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. Chai) 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 →
Explore related providers
Same specialty & city
Urology Physicians in Los Alamitos
Browse urology physicians in Los Alamitos ranked by procedure volume and transparency data.
Highest volume
Top Urology Physicians in CA
Urology physicians ranked by total Medicare services performed statewide.
Industry payments
Pharma Payments to Urology Physicians in CA
Which CA urology physicians receive the most from drug and device companies.
By company
Astellas Pharma US Inc Payments to Doctors
See all physicians who received payments from Astellas Pharma US Inc.
By company
ABBVIE INC. Payments to Doctors
See all physicians who received payments from ABBVIE INC.
By company
AbbVie Inc. Payments to Doctors
See all physicians who received payments from AbbVie Inc.
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.
Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology