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Family Practice

Cathy Z. Xie, DO

Works at hospitals in League City, TX · Texas

Summary

Dr. Cathy Z. Xie, DO is a family doctor at 400 Harborside Dr, Suite 104, Galveston, TX 77555. Phone: (409) 772-2166. Accepts Medicare assignment. In 2024, Cathy Z. Xie had 272 Original Medicare patients and 553 services. NPI 1366946584. 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: Family doctor (Medicare lists Family Practice)
  • Address: 400 Harborside Dr, Suite 104, Galveston, TX 77555 · Directions
  • Phone: (409) 772‑2166
  • Medicare: Accepts Medicare assignment
  • Hospital: UTMB Health League City Campus Hospital
  • Group practice: UTMB Faculty Group Practice
  • Medical school: University Of North Texas Hsc, College Of Osteopathic Med · graduated 2018 (8 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Cathy Z. Xie, 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 Cathy Z. Xie accept Medicare assignment?
Yes. Medicare's clinician data says Cathy Z. Xie 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 Cathy Z. Xie see?
In 2024, CMS data shows 272 Original Medicare patients and 553 services for Cathy Z. Xie. This counts Original Medicare only and measures volume, not quality.
What is Cathy Z. Xie's NPI number?
1366946584. 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 Cathy Z. Xie, 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 patients272
Services billed to Medicare553
Different services or procedures25
Participating Medicare providerYes
Average age of these patients71

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)236 services
  2. 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)110 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)41 services
  4. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)35 services
  5. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)27 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 pressure72%
  • High cholesterol68%
  • Diabetes29%
  • Arthritis29%
  • Anxiety23%
  • Depression20%

Hospitals where Cathy Z. Xie works

Medicare's Facility Affiliation Data lists Cathy Z. Xie 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 Cathy Z. Xie is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Cathy Z. Xie as a member of this group (CMS data updated October 2, 2026).

  • UTMB Faculty Group Practice1,101 clinicians in the group

Specialties

Find other Family Practice doctors in Texas →

Other family doctors in Galveston

Clinicians with the same Medicare primary specialty in Galveston, TX — not a recommendation.

All family doctors in Galveston →

Other clinicians in UTMB Faculty Group Practice

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

Clinician information

CredentialDO
Medical schoolUniversity Of North Texas Hsc, College Of Osteopathic Med
Graduation year2018 (8 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1366946584
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