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Infectious Disease

Anastasia Weiland, MD

Works at hospitals in Orange, CA · California

Summary

Dr. Anastasia Weiland, MD is an infectious disease doctor at 101 The City Dr S, Orange, CA 92868. Phone: (714) 456-7004. Accepts Medicare assignment. NPI 1104449834. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

  • Specialty: Infectious disease doctor (Medicare lists Infectious Disease)
  • Address: 101 The City Dr S, Orange, CA 92868 · Directions
  • Phone: (714) 456‑7004
  • Medicare: Accepts Medicare assignment
  • Hospital: UCI Health-Orange
  • Group practice: UC Regents
  • Medical school: 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 Anastasia Weiland, 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 Anastasia Weiland accept Medicare assignment?
Yes. Medicare's clinician data says Anastasia Weiland 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.
What is Anastasia Weiland's NPI number?
1104449834. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Anastasia Weiland works

Medicare's Facility Affiliation Data lists Anastasia Weiland 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.

  • UCI Health-OrangeOrange, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050348

Practice locations

Addresses where Anastasia Weiland is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Anastasia Weiland as a member of this group (CMS data updated October 2, 2026).

  • UC Regents319 clinicians in the group

Specialties

Find other Infectious Disease doctors in California →

Other infectious disease doctors in Orange

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

All infectious disease doctors in Orange →

Other clinicians in UC Regents

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

Clinician information

CredentialMD
Graduation year2018 (8 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1104449834
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. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  5. Medicare Care Compare — official Medicare tool to look up clinicians