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Anesthesiology

Rainier E. Guiang, MD

Sees patients in Corona, CA · Riverside, CA · California

Summary

Rainier E. Guiang, MD (Anesthesiology) is enrolled with Medicare at 2 practice locations in Corona, CA and Riverside, CA. NPI 1548217821. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

Call(951) 784‑7111 NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about Rainier E. Guiang, 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

2Practice locations
AnesthesiologyPrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
27Years since medical school (graduated 1999)
MaleGender (as listed)
University Pain Consultants Inc.Group practice

Quick answers

Where does Rainier E. Guiang see patients?
Medicare's clinician data lists 2 practice locations, including Corona, CA and Riverside, CA. Call before your visit to confirm the address.
What is Rainier E. Guiang's specialty?
Medicare lists Anesthesiology as the primary specialty, and also Pain Management.
Does Rainier E. Guiang accept Medicare assignment?
Yes. Medicare's clinician data says Rainier E. Guiang 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.
Does Rainier E. Guiang offer telehealth?
Medicare's clinician data says Rainier E. Guiang offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Rainier E. Guiang?
(951) 784-7111, as listed in official Medicare / NPI Registry data.
What is Rainier E. Guiang's NPI number?
1548217821. 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 Rainier E. Guiang is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Rainier E. Guiang as a member of this group (CMS data updated 2026-10-02).

  • University Pain Consultants Inc.4 clinicians in the group

Specialties

Find other Anesthesiology doctors in California →

Other anesthesiologists in Corona

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

All anesthesiologists in Corona →

Clinician information

CredentialMD
Graduation year1999
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1548217821
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