Medicare Enrolled
Dr. Michael Madievsky, MD
Gastroenterology · Tarzana, 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. Madievsky 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. Madievsky
Dr. Michael Madievsky is a gastroenterology specialist in Tarzana, CA, with 20 years of NPI registration. Based on federal Medicare data, Dr. Madievsky performed 2,369 Medicare services across 1,986 unique beneficiaries.
Between the years covered by Open Payments, Dr. Madievsky received a total of $21,222 from 45 pharmaceutical and/or device companies across 913 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in gastroenterology. 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. Madievsky 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.
✓ 20 years in practice
▲ Top 7% volume in CA
$21,222 industry payments
Medicare Practice Summary
Medicare Utilization ↗2,369
Medicare services
Top 7% in CA for gastroenterology
1,986
Unique beneficiaries
$101
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~118 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. |
491 | $105 | $600 |
| 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. |
386 | $75 | $440 |
| 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. |
223 | $79 | $613 |
| 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. |
204 | $70 | $870 |
| 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. |
180 | $134 | $780 |
| 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. |
161 | $218 | $1,109 |
| 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. |
148 | $83 | $540 |
| 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. |
121 | $40 | $240 |
| 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. |
100 | $152 | $840 |
| 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. |
74 | $52 | $300 |
| Complete ultrasound of abdomen A diagnostic imaging test that uses sound waves to create detailed pictures of the organs and structures within the abdomen. |
69 | $65 | $434 |
| Colonoscopy for colorectal cancer screening, high risk A colonoscopy performed to screen for colorectal cancer in individuals identified as being at high risk for the disease. |
48 | $185 | $808 |
| New patient office visit, complex (60-74 min) | 38 | $182 | $1,020 |
| 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. |
32 | $66 | $360 |
| 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. |
31 | $25 | $160 |
| Colonoscopy A diagnostic exam of the large bowel using a flexible endoscope to visualize the interior of the colon. |
27 | $146 | $820 |
| Colonoscopy for colorectal cancer screening A colonoscopy performed to screen for colorectal cancer in individuals who are not at high risk for the disease. |
14 | $185 | $820 |
| Injection beneath large bowel lining via endoscope A flexible endoscope is used to inject medication or fluid beneath the lining of the large intestine. |
11 | $14 | $880 |
| Anoscopy A diagnostic exam of the anus using a thin, lighted tube called an endoscope to look inside. |
11 | $101 | $640 |
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.
Industry Payment Transparency
Open Payments through 2024 ↗$21,222
Total received (2018-2024)
Avg $3,032/year across 7 years
Top 11% in CA for gastroenterology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
45
Companies
913
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
$20,954 (98.7%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$268 (1.3%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$5,050
2023
$4,071
2022
$4,274
2021
$2,862
2020
$1,174
2019
$1,724
2018
$2,066
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
ABBVIE INC.
$1,292
Janssen Biotech, Inc.
$670
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$431
Ardelyx, Inc.
$401
Takeda Pharmaceuticals U.S.A., Inc.
$334
Lilly USA, LLC
$316
Celltrion USA Inc.
$268
Regeneron Healthcare Solutions, Inc.
$247
Ipsen Biopharmaceuticals, Inc
$245
Phathom Pharmaceuticals, Inc.
$150
GENZYME CORPORATION
$138
Gilead Sciences, Inc.
$116
IRONWOOD PHARMACEUTICALS, INC
$94
PFIZER INC.
$90
Celgene Corporation
$79
Madrigal Pharmaceuticals
$66
QOL Medical, LLC
$47
RedHill Biopharma Inc.
$39
Intercept Pharmaceuticals, Inc.
$26
Top 3 companies account for 47.4% of 2024 payments
All-time payments by company (2018-2024) ›
ABBVIE INC.
$3,946
Janssen Biotech, Inc.
$2,708
Gilead Sciences, Inc.
$1,893
AbbVie Inc.
$1,700
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$1,564
Takeda Pharmaceuticals U.S.A., Inc.
$1,331
AbbVie, Inc.
$1,047
Janssen Scientific Affairs, LLC
$824
Ardelyx, Inc.
$724
Regeneron Healthcare Solutions, Inc.
$663
Celgene Corporation
$608
GENZYME CORPORATION
$484
PFIZER INC.
$380
Lilly USA, LLC
$340
Ironwood Pharmaceuticals, Inc
$329
Celltrion USA Inc.
$268
Ipsen Biopharmaceuticals, Inc
$245
Amgen Inc.
$242
Synergy Pharmaceuticals Inc
$207
RedHill Biopharma Inc.
$191
Phathom Pharmaceuticals, Inc.
$150
Evoke Pharma, Inc.
$124
E.R. Squibb & Sons, L.L.C.
$120
IRONWOOD PHARMACEUTICALS, INC
$117
INTERCEPT PHARMACEUTICALS, INC.
$108
Intercept Pharmaceuticals, Inc.
$106
Prometheus Laboratories Inc.
$93
Merck Sharp & Dohme LLC
$84
Allergan Inc.
$69
Merck Sharp & Dohme Corporation
$67
Lucid Diagnostics Inc.
$67
Madrigal Pharmaceuticals
$66
Nestle HealthCare Nutrition Inc.
$56
Alnylam Pharmaceuticals Inc.
$48
QOL Medical, LLC
$47
Alfasigma USA, Inc.
$28
Shield Therapeutics Inc
$25
Ferring Pharmaceuticals Inc.
$24
Daiichi Sankyo Inc.
$24
Shionogi Inc
$21
Concordia Pharmaceuticals Inc.
$20
Medtronic, Inc.
$19
Ethicon US, LLC
$19
Shire North American Group Inc
$16
Napo Pharmaceuticals Inc
$9
Top 3 companies account for 40.3% of all-time payments
Associated products mentioned in payments ›
ACCRUFER · AVSOLA · Aemcolo · CLENPIQ · CREON · Creon · DIFICID · DONNATAL · DUPIXENT · ENTYVIO · EOHILIA · Entyvio · Epclusa · GATTEX · GI GENIUS · GIMOTI · HUMIRA · Humira · IBSRELA · INFLECTRA · INJECTAFER · IQIRVO · LINX Reflux Management System · LINZESS · Linzess · MAVYRET · MOTEGRITY · Mavyret · Motegrity · Movantik · Mytesi · OCALIVA · OMVOH · ONPATTRO · RELISTOR · REMICADE · RESMETIROM · RINVOQ · SKYRIZI · STELARA · SUCRAID · Symproic · TALTZ · TREMFYA · TRULANCE · Talicia · Trulance · UCERIS TABLETS · VEGZELMA · VIBERZI · VOQUEZNA · Vemlidy · XELJANZ · XIFAXAN · XIFAXANIBSD · ZENPEP · ZEPATIER · ZEPOSIA · ZYMFENTRA · Zelnorm
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
Gastroenterologists within 10 mi
364
Per 100K population
3.7
County median income
$87,760
Nearest hospital
PROVIDENCE CEDARS SINAI TARZANA MEDICAL CENTER
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. Madievsky is a clinical cardiology specialist, with above-average Medicare volume (top 7% in CA), with low-engagement industry engagement in the top 11% of CA peers, 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
Is Dr. Madievsky experienced with office visit, established patient (30-39 min)?
Based on Medicare claims data, Dr. Madievsky performed 491 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. Madievsky receive payments from pharmaceutical companies?
Yes. Dr. Madievsky received a total of $21,222 from 45 companies across 913 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. Madievsky's costs compare to other gastroenterologists in Tarzana?
Dr. Madievsky's average Medicare payment per service is $101. 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. Madievsky) 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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