Medicare Enrolled
Dr. Jay Guan, M.D.
Student in an Organized Health Care Education/Training Program · Los Angeles, 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. Guan 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. Guan
Dr. Jay Guan is a student in an organized health care education/training program specialist in Los Angeles, CA, with 10 years of NPI registration. Based on federal Medicare data, Dr. Guan performed 2,986 Medicare services across 2,164 unique beneficiaries.
Between the years covered by Open Payments, Dr. Guan received a total of $7,378 from 34 pharmaceutical and/or device companies across 329 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in student in an organized health care education/training program. 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. Guan 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.
✓ 10 years in practice
▲ Top 6% volume in CA
$7,378 industry payments
Medicare Practice Summary
Medicare Utilization ↗2,986
Medicare services
Top 6% in CA for student in an organized health care education/training program
2,164
Unique beneficiaries
$111
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~299 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. |
434 | $101 | $600 |
| Chronic care management, additional 20 min/month This service covers an extra 20 minutes of clinical staff time directed by a healthcare professional for managing two or more chronic conditions each calendar month. |
343 | $40 | $240 |
| Upper GI endoscopy with biopsy A procedure to collect tissue samples from the esophagus, stomach, or upper small intestine using a flexible tube with a camera. The samples are examined to check for abnormalities. |
232 | $42 | $607 |
| Colonoscopy with biopsy A procedure to collect tissue samples from the large intestine using a flexible tube with a camera. The samples are examined to check for abnormalities or disease. |
216 | $41 | $867 |
| Colon polyp removal with endoscopic snare This procedure removes polyps or growths from the large bowel using a flexible tube with a camera and a wire loop tool. The snare is used to cut off the growths during the examination. |
209 | $193 | $1,098 |
| 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. |
202 | $97 | $524 |
| Chronic care management, first 20 min/month This service covers the first 20 minutes of clinical staff time directed by a healthcare professional each calendar month to manage chronic conditions. |
191 | $52 | $300 |
| 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. |
139 | $122 | $780 |
| 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. |
113 | $73 | $440 |
| 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. |
93 | $147 | $840 |
| 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. |
87 | $142 | $771 |
| External hemorrhoid removal by rubber banding A procedure to remove external hemorrhoids using rubber bands to cut off blood supply. The affected tissue is tied off and eventually falls off. |
81 | $246 | $1,420 |
| Endoscopic removal of esophagus, stomach, or small bowel polyps This procedure uses an endoscope and a mechanical snare to remove polyps or growths from the esophagus, stomach, or upper small bowel. |
70 | $128 | $857 |
| 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. |
61 | $49 | $280 |
| Liver stiffness measurement A non-invasive test that uses ultrasound or similar technology to measure the stiffness of liver tissue. This measurement helps assess the degree of liver fibrosis or scarring. |
52 | $27 | $160 |
| Endoscopy of digestive tract Imaging of the digestive tract performed from the inside using an endoscope. |
49 | $661 | $3,980 |
| Remote patient monitoring management, 20 min/month Management based on results from remote vital sign monitoring for the first 20 minutes per calendar month. |
47 | $42 | $240 |
| Esophageal dilation with guide wire and endoscope A flexible endoscope is used to insert a guide wire into the esophagus, followed by dilation to widen the esophageal passage. |
42 | $88 | $719 |
| Replacement of stomach stoma tube | 38 | $209 | $1,220 |
| 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. |
33 | $84 | $540 |
| Endoscopic control of upper GI bleeding A flexible endoscope is used to locate and stop bleeding in the esophagus, stomach, or upper small intestine. |
27 | $148 | $873 |
| Injection beneath large bowel lining via endoscope A flexible endoscope is used to inject medication or fluid beneath the lining of the large intestine. |
23 | $13 | $845 |
| Esophageal motility study A test that evaluates the movement and function of the esophagus. |
23 | $47 | $997 |
| Esophageal function monitoring via nasal tube This procedure involves monitoring and recording esophageal function using a tube inserted through the nose that contains electrodes. |
23 | $37 | $845 |
| Balloon dilation of esophagus, stomach, or upper small bowel, less than 3.0 cm A procedure using a flexible endoscope to widen a narrowed section of the esophagus, stomach, or upper small bowel with a balloon that is less than 3.0 cm in length. |
22 | $90 | $664 |
| Destruction of large bowel polyp via endoscope Removal of a polyp or growth in the large intestine using a flexible tube with a camera. The procedure is performed through the endoscope to destroy the tissue. |
22 | $220 | $1,143 |
| New patient office visit, complex (60-74 min) | 22 | $158 | $1,020 |
| Endoscopic injection of esophagus, stomach, or upper small bowel A procedure where a flexible endoscope is used to deliver an injection into the esophagus, stomach, or upper small intestine. |
19 | $12 | $604 |
| Esophageal function monitoring via capsule This procedure involves monitoring and recording the function of the esophagus using a small capsule attached to the esophageal wall. |
16 | $400 | $2,460 |
| Complex stomach and bowel motor function test A test that measures the motor function of the stomach and intestines to assess how well they move and process contents. |
16 | $1,541 | $8,900 |
| Colonoscopy A diagnostic exam of the large bowel using a flexible endoscope to visualize the interior of the colon. |
15 | $141 | $728 |
| Dilation of esophagus | 13 | $33 | $360 |
| Endoscopic control of bleeding in large intestine A flexible tube with a camera is inserted into the large intestine to locate and stop bleeding. |
13 | $212 | $1,140 |
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.
1.3% high complexity
18.6% medium
80.2% routine
Industry Payment Transparency
Open Payments through 2024 ↗$7,378
Total received (2018-2024)
Avg $1,230/year across 6 years
Top 5% in CA for student in an organized health care education/training program
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
34
Companies
329
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
$7,043 (95.5%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$334 (4.5%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$2,787
2023
$2,089
2022
$2,025
2021
$318
2019
$24
2018
$135
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
ABBVIE INC.
$985
Janssen Biotech, Inc.
$315
Lilly USA, LLC
$275
AIMMUNE THERAPEUTICS, INC.
$207
Madrigal Pharmaceuticals
$200
PFIZER INC.
$139
GENZYME CORPORATION
$121
Regeneron Healthcare Solutions, Inc.
$91
Ardelyx, Inc.
$85
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$69
Takeda Pharmaceuticals U.S.A., Inc.
$66
Phathom Pharmaceuticals, Inc.
$58
Celgene Corporation
$42
Novo Nordisk Inc
$36
Celltrion USA Inc.
$34
IRONWOOD PHARMACEUTICALS, INC
$24
Exact Sciences Corporation
$23
Ipsen Biopharmaceuticals, Inc
$19
Top 3 companies account for 56.5% of 2024 payments
All-time payments by company (2018-2024) ›
ABBVIE INC.
$2,701
Janssen Biotech, Inc.
$687
Endogastric Solutions, Inc
$383
PFIZER INC.
$361
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$361
Celgene Corporation
$291
GENZYME CORPORATION
$289
Lilly USA, LLC
$275
AIMMUNE THERAPEUTICS, INC.
$207
Madrigal Pharmaceuticals
$200
Regeneron Healthcare Solutions, Inc.
$188
Takeda Pharmaceuticals U.S.A., Inc.
$164
Apollo Endosurgery US Inc
$160
Ardelyx, Inc.
$159
Gilead Sciences, Inc.
$115
Ferring Pharmaceuticals Inc.
$112
INTERCEPT PHARMACEUTICALS, INC.
$96
Ironwood Pharmaceuticals, Inc
$73
Novo Nordisk Inc
$72
Evoke Pharma, Inc.
$66
Phathom Pharmaceuticals, Inc.
$58
AbbVie Inc.
$49
Lucid Diagnostics Inc.
$41
NESTLE HEALTHCARE NUTRITION INC.
$40
Olympus America Inc.
$36
Celltrion USA Inc.
$34
IRONWOOD PHARMACEUTICALS, INC
$24
Exact Sciences Corporation
$23
Ethicon US, LLC
$22
RedHill Biopharma Inc.
$20
Ipsen Biopharmaceuticals, Inc
$19
Merck Sharp & Dohme LLC
$17
Merck Sharp & Dohme Corporation
$17
Nestle HealthCare Nutrition Inc.
$17
Top 3 companies account for 51.1% of all-time payments
Associated products mentioned in payments ›
CREON · Cologuard Collection Kit · DIFICID · DUPIXENT · ENTYVIO · EOHILIA · ESOPHYX · EVIS EXERA · GIMOTI · HUMIRA · IBSRELA · LINZESS · Linzess · MAVYRET · OCALIVA · OMVOH · OverStitch Endoscopic Suturing System · REBYOTA · REMICADE · RESMETIROM · RINVOQ · SKYRIZI · STELARA · Saxenda · TREMFYA · TRULANCE · Talicia · VEGZELMA · VIBERZI · VOQUEZNA · VOWST · Wegovy · XELJANZ · XIFAXAN · ZENPEP · ZEPOSIA · ZYMFENTRA
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 (96%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians. Total industry engagement is in the top 5% for student in an organized health care education/training program in CA.
Geographic Context
Student in an organized health care education/training programs within 10 mi
15,134
Per 100K population
153.7
County median income
$87,760
Nearest hospital
ADVENTIST HEALTH WHITE MEMORIAL
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. Guan is a clinical cardiology specialist, with above-average Medicare volume (top 6% in CA), with low-engagement industry engagement in the top 5% of CA peers.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Guan experienced with office visit, established patient (30-39 min)?
Based on Medicare claims data, Dr. Guan performed 434 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. Guan receive payments from pharmaceutical companies?
Yes. Dr. Guan received a total of $7,378 from 34 companies across 329 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. Guan's costs compare to other student in an organized health care education/training programs in Los Angeles?
Dr. Guan's average Medicare payment per service is $111. 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. Guan) 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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