Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Colorectal Surgery (Proctology)

Bryan D. Loh, MD

Sees patients in Anaheim, CA · California

Summary

Bryan D. Loh, MD (Colorectal Surgery (Proctology)) is enrolled with Medicare at 3 practice locations in Anaheim, CA. NPI 1972753093. 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 Bryan D. Loh, 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

Colorectal Surgery (Proctology)Primary specialty
YesAccepts Medicare assignment
23Years since medical school (graduated 2003)
Loma Linda University School Of MedicineMedical school
MaleGender (as listed)
Southern California Permanente Medical GroupGroup practice

Quick answers

Where does Bryan D. Loh see patients?
Medicare's clinician data lists 3 practice locations, including Anaheim, CA. Call before your visit to confirm the address.
What is Bryan D. Loh's specialty?
Medicare lists Colorectal Surgery (Proctology) as the primary specialty.
Does Bryan D. Loh accept Medicare assignment?
Yes. Medicare's clinician data says Bryan D. Loh 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 Bryan D. Loh?
(888) 988-2800, as listed in official Medicare / NPI Registry data.
What is Bryan D. Loh's NPI number?
1972753093. 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 Bryan D. Loh is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Bryan D. Loh as a member of this group (CMS data updated 2026-10-02).

  • Southern California Permanente Medical Group11,293 clinicians in the group

Specialties

Find other Colorectal Surgery (Proctology) doctors in California →

Other colorectal surgeons in Anaheim

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

All colorectal surgeons in Anaheim →

Clinician information

CredentialMD
Medical schoolLoma Linda University School Of Medicine
Graduation year2003
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1972753093
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