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Anesthesiology

Haiyan Guo, DO

Sees patients in Fresno, CA · California

Summary

Haiyan Guo, DO (Anesthesiology) is enrolled with Medicare at 1 practice location in Fresno, CA. NPI 1881223444. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Haiyan Guo, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

AnesthesiologyPrimary specialty
YesAccepts Medicare assignment
6Years since medical school (graduated 2020)
Touro Un College Of Osteopathic Medicine, VallejoMedical school
FemaleGender (as listed)
Permanente Medical Group IncGroup practice

Quick answers

Where does Haiyan Guo see patients?
Medicare's clinician data lists 1 practice location in Fresno, CA. Call before your visit to confirm the address.
What is Haiyan Guo's specialty?
Medicare lists Anesthesiology as the primary specialty.
Does Haiyan Guo accept Medicare assignment?
Yes. Medicare's clinician data says Haiyan Guo accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Haiyan Guo?
(559) 448-4500, as listed in official Medicare / NPI Registry data.
What is Haiyan Guo's NPI number?
1881223444. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Haiyan Guo is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Haiyan Guo as a member of this group (CMS data updated 2026-10-02).

  • Permanente Medical Group Inc10,996 clinicians in the group

Specialties

Find other Anesthesiology doctors in California →

Other anesthesiologists in Fresno

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

All anesthesiologists in Fresno →

Clinician information

CredentialDO
Medical schoolTouro Un College Of Osteopathic Medicine, Vallejo
Graduation year2020
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1881223444
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians