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Internal Medicine

Christopher Sun, MD

Works at hospitals in San Pedro, CA · Torrance, CA · California

Summary

Christopher Sun, MD (Internal Medicine) is listed by Medicare at 3 hospitals in San Pedro, CA and Torrance, CA. NPI 1245407105. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Christopher Sun, 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

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
23Years since medical school (graduated 2003)
MaleGender (as listed)
Providence Medical InstituteGroup practice

Quick answers

Which hospitals does Christopher Sun work at?
Medicare's official clinician data lists Christopher Sun at 3 hospitals: Providence Little Co of Mary Med Ctr San Pedro, Providence Little Company of Mary Med Ctr Torrance and Torrance Memorial Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Christopher Sun see patients?
Medicare's clinician data lists 1 practice location in Redondo Beach, CA. Call before your visit to confirm the address.
What is Christopher Sun's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Christopher Sun accept Medicare assignment?
Yes. Medicare's clinician data says Christopher Sun 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 Christopher Sun offer telehealth?
Medicare's clinician data says Christopher Sun offers telehealth services. Ask the office which visits can be done by video or phone.
What is Christopher Sun's NPI number?
1245407105. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Christopher Sun works

Medicare's Facility Affiliation Data lists Christopher Sun at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

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

  • 520 N Prospect AveRedondo Beach, CA 90277

Group practices

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

  • Providence Medical Institute288 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Redondo Beach

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

All internal medicine doctors in Redondo Beach →

Clinician information

CredentialMD
Graduation year2003
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1245407105
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 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians