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Cardiovascular Disease (Cardiology)

Zi Jian Xu, MD

Works at hospitals in Reno, NV · Jackson, CA · Auburn, CA … · Nevada, California

Summary

Dr. Zi Jian Xu, MD is a cardiologist at 1 Medical Plaza Dr, Roseville, CA 95661. Phone: (916) 454-6868. Accepts Medicare assignment. In 2024, Zi Jian Xu had 758 Original Medicare patients and 3,241 services. NPI 1437122538. 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.

From official Medicare data

This page shows what Medicare's official clinician data says about Zi Jian Xu, 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 Zi Jian Xu accept Medicare assignment?
Yes. Medicare's clinician data says Zi Jian Xu 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 Zi Jian Xu see?
In 2024, CMS data shows 758 Original Medicare patients and 3,241 services for Zi Jian Xu. This counts Original Medicare only and measures volume, not quality.
What is Zi Jian Xu's NPI number?
1437122538. 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 Zi Jian Xu, 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 patients758
Services billed to Medicare3,241
Different services or procedures75
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)366 services
  2. Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)301 services
  3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)283 services
  4. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)273 services
  5. Evaluation of lower heart chamber assist device (93750)220 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%
  • Heart failure63%
  • Ischemic heart disease57%
  • Atrial fibrillation52%
  • Chronic kidney disease51%

Hospitals where Zi Jian Xu works

Medicare's Facility Affiliation Data lists Zi Jian Xu 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.

Practice locations

Addresses where Zi Jian Xu is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 13; the Medicare profile lists all.

Group practices

Medicare enrollment lists Zi Jian Xu as a member of this group (CMS data updated October 2, 2026).

  • Sutter Valley Medical Foundation2,500 clinicians in the group

Specialties

Find other Cardiovascular Disease (Cardiology) doctors in California →

Other cardiologists in Roseville

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

All cardiologists in Roseville →

Other clinicians in Sutter Valley Medical Foundation

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

Clinician information

CredentialMD
Graduation year1983 (43 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1437122538
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