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Cardiovascular Disease (Cardiology)

Mariusz W. Wysoczanski, MD

Works at hospitals in La Mesa, CA · Chula Vista, CA · California

Summary

Dr. Mariusz W. Wysoczanski, MD is a cardiologist at 1415 E 8th St, Suite 8, National City, CA 91950. Phone: (619) 434-4288. Accepts Medicare assignment. In 2024, Mariusz W. Wysoczanski had 759 Original Medicare patients and 11,079 services. NPI 1659535656. 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: Cardiologist (Medicare lists Cardiovascular Disease (Cardiology))
  • Address: 1415 E 8th St, Suite 8, National City, CA 91950 · Directions (2 more locations)
  • Phone: (619) 434‑4288
  • Medicare: Accepts Medicare assignment
  • Hospitals: Grossmont Hospital, Sharp Chula Vista Medical Center
  • Group practice: Emergency and Acute Care Medical Corporation (+1 more)
  • Medical school: graduated 2005 (21 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 Mariusz W. Wysoczanski, 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 Mariusz W. Wysoczanski accept Medicare assignment?
Yes. Medicare's clinician data says Mariusz W. Wysoczanski 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 Mariusz W. Wysoczanski see?
In 2024, CMS data shows 759 Original Medicare patients and 11,079 services for Mariusz W. Wysoczanski. This counts Original Medicare only and measures volume, not quality.
What is Mariusz W. Wysoczanski's NPI number?
1659535656. 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 Mariusz W. Wysoczanski, 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 patients759
Services billed to Medicare11,079
Different services or procedures65
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days (99454)1,909 services
  2. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)1,810 services
  3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)1,768 services
  4. Management using the results of remote vital sign monitoring per calendar month, first 20 minutes (99457)1,706 services
  5. Injection, regadenoson, 0.1 mg (J2785)488 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 blood pressure75%
  • High cholesterol75%
  • Diabetes55%
  • Arthritis44%
  • Chronic kidney disease40%
  • Heart failure36%

Hospitals where Mariusz W. Wysoczanski works

Medicare's Facility Affiliation Data lists Mariusz W. Wysoczanski 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.

  • Grossmont HospitalLa Mesa, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050026
  • Sharp Chula Vista Medical CenterChula Vista, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050222

Practice locations

Addresses where Mariusz W. Wysoczanski is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Mariusz W. Wysoczanski as a member of these groups (CMS data updated October 2, 2026).

  • Emergency and Acute Care Medical Corporation422 clinicians in the group
  • Heart Health Center of San Diego a Medical Corporation2 clinicians in the group

Specialties

Find other Cardiovascular Disease (Cardiology) doctors in California →

Other cardiologists in National City

Clinicians with the same Medicare primary specialty in National City, CA — not a recommendation.

All cardiologists in National City →

Other clinicians in Emergency and Acute Care Medical Corporation

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Graduation year2005 (21 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1659535656
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