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Allergy/Immunology

Susan S. Xie, MD

Works at hospitals in Seattle, WA · Washington

Summary

Dr. Susan S. Xie, MD is an allergist and immunologist at 1100 9th Ave, Seattle, WA 98101. Phone: (206) 223-6600. Accepts Medicare assignment. In 2024, Susan S. Xie had 46 Original Medicare patients and 213 services. NPI 1134651383. 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: Allergist and immunologist (Medicare lists Allergy/Immunology)
  • Address: 1100 9th Ave, Seattle, WA 98101 · Directions (2 more locations)
  • Phone: (206) 223‑6600
  • Medicare: Accepts Medicare assignment
  • Hospital: Virginia Mason Medical Center
  • Group practice: Franciscan Medical Group (+1 more)
  • Medical school: Baylor College Of Medicine · graduated 2017 (9 years since medical school)
  • Gender (as listed): Female
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Susan S. 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 Susan S. Xie accept Medicare assignment?
Yes. Medicare's clinician data says Susan S. 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 Susan S. Xie see?
In 2024, CMS data shows 46 Original Medicare patients and 213 services for Susan S. Xie. This counts Original Medicare only and measures volume, not quality.
What is Susan S. Xie's NPI number?
1134651383. 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 Susan S. 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 patients46
Services billed to Medicare213
Different services or procedures16
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)19 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 cholesterol61%
  • Arthritis57%
  • High blood pressure54%
  • Asthma48%
  • Osteoporosis28%

Hospitals where Susan S. Xie works

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

Group practices

Medicare enrollment lists Susan S. Xie as a member of these groups (CMS data updated October 2, 2026).

  • Franciscan Medical Group1,421 clinicians in the group
  • Virginia Mason Medical Center867 clinicians in the group

Specialties

Find other Allergy/Immunology doctors in Washington →

Other allergist and immunologists in Seattle

Clinicians with the same Medicare primary specialty in Seattle, WA — not a recommendation.

All allergist and immunologists in Seattle →

Other clinicians in Franciscan Medical Group

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

Clinician information

CredentialMD
Medical schoolBaylor College Of Medicine
Graduation year2017 (9 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1134651383
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