Medicare Enrolled
Dr. Zenowij Majuk, MD
Gastroenterology · Santa Cruz, 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. Majuk 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. Majuk?
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What this data tells you about Dr. Majuk
Dr. Zenowij Majuk is a gastroenterology specialist in Santa Cruz, CA, with 20 years of NPI registration. Based on federal Medicare data, Dr. Majuk performed 991 Medicare services across 941 unique beneficiaries.
Between the years covered by Open Payments, Dr. Majuk received a total of $8,980 from 37 pharmaceutical and/or device companies across 499 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. Majuk 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 35% volume in CA
$8,980 industry payments
Medicare Practice Summary
Medicare Utilization ↗991
Medicare services
Top 35% in CA for gastroenterology
941
Unique beneficiaries
$92
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~50 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 |
|---|---|---|---|
| Moderate sedation during GI endoscopy Sedation services provided by the physician performing a gastrointestinal endoscopic procedure. This requires an independent trained observer to assist in monitoring the patient. |
191 | $4 | $75 |
| 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. |
118 | $65 | $147 |
| 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. |
99 | $81 | $222 |
| 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. |
97 | $131 | $338 |
| 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. |
90 | $77 | $500 |
| 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. |
75 | $93 | $220 |
| 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. |
66 | $199 | $800 |
| 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. |
63 | $134 | $600 |
| 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. |
40 | $96 | $200 |
| 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. |
37 | $143 | $415 |
| 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. |
34 | $187 | $350 |
| Colonoscopy for colorectal cancer screening A colonoscopy performed to screen for colorectal cancer in individuals who are not at high risk for the disease. |
26 | $181 | $300 |
| Colonoscopy A diagnostic exam of the large bowel using a flexible endoscope to visualize the interior of the colon. |
16 | $135 | $500 |
| Endoscopic control of upper GI bleeding A flexible endoscope is used to locate and stop bleeding in the esophagus, stomach, or upper small intestine. |
15 | $165 | $400 |
| Upper endoscopy (EGD) A diagnostic exam of the esophagus, stomach, and upper small bowel using a flexible endoscope. |
12 | $89 | $450 |
| 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. |
12 | $40 | $92 |
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 ↗$8,980
Total received (2018-2024)
Avg $1,283/year across 7 years
Top 21% in CA for gastroenterology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
37
Companies
499
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
$8,903 (99.1%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$59 (0.7%)
Consulting
Expert advisory fees, typically reflecting recognized clinical expertise
$17 (0.2%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$1,038
2023
$917
2022
$1,140
2021
$1,603
2020
$847
2019
$1,396
2018
$2,040
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
ABBVIE INC.
$285
Celltrion USA Inc.
$142
Janssen Biotech, Inc.
$114
QOL Medical, LLC
$91
PFIZER INC.
$90
Intercept Pharmaceuticals, Inc.
$81
Biocon Biologics Inc
$52
AIMMUNE THERAPEUTICS, INC.
$47
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$44
Takeda Pharmaceuticals U.S.A., Inc.
$40
Echosens North America, Inc.
$19
Braintree Laboratories, Inc.
$17
VIVUS LLC
$16
Top 3 companies account for 52.1% of 2024 payments
All-time payments by company (2018-2024) ›
Takeda Pharmaceuticals U.S.A., Inc.
$1,287
ABBVIE INC.
$908
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$598
AbbVie, Inc.
$585
AbbVie Inc.
$583
Nestle HealthCare Nutrition Inc.
$577
Janssen Biotech, Inc.
$443
Allergan Inc.
$439
PFIZER INC.
$432
Romark Laboratories, LC
$370
Braintree Laboratories, Inc.
$322
QOL Medical, LLC
$222
Gilead Sciences, Inc.
$208
Celltrion USA Inc.
$202
Ferring Pharmaceuticals Inc.
$202
Synergy Pharmaceuticals Inc
$195
Shionogi Inc
$135
Merck Sharp & Dohme Corporation
$134
Janssen Scientific Affairs, LLC
$122
NESTLE HEALTHCARE NUTRITION INC.
$118
UCB, Inc.
$108
Intercept Pharmaceuticals, Inc.
$98
Ironwood Pharmaceuticals, Inc
$97
Celgene Corporation
$89
VIVUS LLC
$75
E.R. Squibb & Sons, L.L.C.
$67
AIMMUNE THERAPEUTICS, INC.
$62
Merck Sharp & Dohme LLC
$62
Biocon Biologics Inc
$52
Daiichi Sankyo Inc.
$43
Regeneron Healthcare Solutions, Inc.
$28
Alfasigma USA, Inc.
$26
Shire North American Group Inc
$23
Lilly USA, LLC
$22
VIVUS, Inc.
$20
Echosens North America, Inc.
$19
Ambu Inc.
$8
Top 3 companies account for 31.1% of all-time payments
Associated products mentioned in payments ›
ALINIA · APRISO · Alinia · Alinia Tablets 500mg 30 count bottle · Amitiza · CIMZIA · CLENPIQ · CREON · Cimzia · Creon · DIFICID · DUPIXENT · ENTYVIO · Entyvio · Epclusa · FibroScan · GATTEX · HUMIRA · Hulio · Humira · INFLECTRA · INJECTAFER · ISENTRESS · LINZESS · Linzess · MAVYRET · MOTEGRITY · MOTOFEN · Mavyret · Mulpleta · OCALIVA · PANCREAZE · REMICADE · RINVOQ · SKYRIZI · STELARA · SUCRAID · SUFLAVE · SUPREP · SUPREP BOWEL PREP · SUTAB · Sucraid · TREMFYA · TRULANCE · Trulance · VEGZELMA · VIBERZI · VOWST · XELJANZ · XIFAXAN · YUFLYMA · ZENPEP · 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
80
Per 100K population
30.1
County median income
$109,266
Nearest hospital
DOMINICAN HOSPITAL
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. Majuk is a clinical cardiology specialist, with moderate Medicare volume, 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
Is Dr. Majuk experienced with moderate sedation during gi endoscopy?
Based on Medicare claims data, Dr. Majuk performed 191 moderate sedation during gi endoscopy 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. Majuk receive payments from pharmaceutical companies?
Yes. Dr. Majuk received a total of $8,980 from 37 companies across 499 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. Majuk's costs compare to other gastroenterologists in Santa Cruz?
Dr. Majuk's average Medicare payment per service is $92. 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. Majuk) 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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