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Gastroenterology

Zenowij Majuk, MD

Works at hospitals in Santa Cruz, CA · Stanford, CA · California

Summary

Dr. Zenowij Majuk, MD is a gastroenterologist at 1505 Soquel Dr, Suite 12, Santa Cruz, CA 95065. Phone: (831) 713-5050. Accepts Medicare assignment. In 2024, Zenowij Majuk had 395 Original Medicare patients and 952 services. NPI 1851376297. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Gastroenterologist (Medicare lists Gastroenterology)
  • Address: 1505 Soquel Dr, Suite 12, Santa Cruz, CA 95065 · Directions
  • Phone: (831) 713‑5050
  • Medicare: Accepts Medicare assignment
  • Hospitals: Dominican Hospital, Stanford Health Care
  • Medical school: Albert Einstein College Of Medicine Of Yeshiva University · graduated 1985 (41 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Zenowij Majuk, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Zenowij Majuk accept Medicare assignment?
Yes. Medicare's clinician data says Zenowij Majuk accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Zenowij Majuk see?
In 2024, CMS data shows 395 Original Medicare patients and 952 services for Zenowij Majuk. This counts Original Medicare only and measures volume, not quality.
What is Zenowij Majuk's NPI number?
1851376297. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Zenowij Majuk, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients395
Services billed to Medicare952
Different services or procedures32
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (G0500)197 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)97 services
  3. Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)85 services
  4. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)82 services
  5. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)81 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High cholesterol72%
  • High blood pressure61%
  • Arthritis41%
  • Ischemic heart disease24%
  • Anxiety21%
  • Depression20%

Hospitals where Zenowij Majuk works

Medicare's Facility Affiliation Data lists Zenowij Majuk at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • Dominican HospitalSanta Cruz, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050242
  • Stanford Health CareStanford, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050441

Practice locations

Addresses where Zenowij Majuk is enrolled with Medicare (CMS data updated October 2, 2026).

Specialties

Find other Gastroenterology doctors in California →

Other gastroenterologists in Santa Cruz

Clinicians with the same Medicare primary specialty in Santa Cruz, CA — not a recommendation.

All gastroenterologists in Santa Cruz →

Clinician information

CredentialMD
Medical schoolAlbert Einstein College Of Medicine Of Yeshiva University
Graduation year1985 (41 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1851376297
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians