Zenowij Majuk, MD
NPI 1851376297 · Gastroenterology Physician · Santa Cruz, CA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Zenowij Majuk, MD is a Gastroenterology Physician provider in Santa Cruz, CA (NPI 1851376297).
Provider details
- NPI number
- 1851376297
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G63264 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
881 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| 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 MonitoG0500 | 197 | $5 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 97 | $91 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 85 | $90 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 82 | $131 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 81 | $170 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 153 | 151 |
| Omeprazole | 102 | 36 |
| Pantoprazole Sodium | 60 | 19 |
| Mesalamine | 43 | — |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 25 | 20 |
| Lipase/Protease/Amylasebrand: Zenpep | 24 | — |
| Sulfasalazine | 23 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,038 across 43 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-12-08
- Last updated
- 2013-04-05
Frequently asked questions
- What is Zenowij Majuk's NPI number?
- Zenowij Majuk's National Provider Identifier (NPI) is 1851376297, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Zenowij Majuk's specialty?
- Zenowij Majuk is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Zenowij Majuk located?
- Zenowij Majuk's practice location on file with NPPES is 1505 Soquel Dr, Santa Cruz, CA 95065-1716.
- What is Zenowij Majuk's phone number?
- The practice phone number listed in the NPPES registry for Zenowij Majuk is (831) 713-5050.
- Does Zenowij Majuk accept Medicare?
- Zenowij Majuk is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Zenowij Majuk's NPI active?
- Yes — Zenowij Majuk's NPI (1851376297) is active in the NPPES registry as of the last update on 2013-04-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.