Quick answers
- Which hospitals does Vannarith So work at?
- Medicare's official clinician data lists Vannarith So at 4 hospitals: Catalina Island Medical Center, Memorialcare Long Beach Medical Center, St Mary Medical Center and UCI Health-Orange. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Vannarith So see patients?
- Medicare's clinician data lists 2 practice locations, including Long Beach, CA. Call before your visit to confirm the address.
- What is Vannarith So's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Vannarith So accept Medicare assignment?
- Yes. Medicare's clinician data says Vannarith So 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 Vannarith So offer telehealth?
- Medicare's clinician data says Vannarith So offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Vannarith So?
- (562) 435-5353, as listed in official Medicare / NPI Registry data.
- What is Vannarith So's NPI number?
- 1659416584. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Vannarith So works
Medicare's Facility Affiliation Data lists Vannarith So at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Catalina Island Medical CenterAvalon, CA · Critical Access Hospital · CCN 051307
- Memorialcare Long Beach Medical CenterLong Beach, CA · Acute Care Hospital · CCN 050485
- St Mary Medical CenterLong Beach, CA · Acute Care Hospital · CCN 050191
- UCI Health-OrangeOrange, CA · Acute Care Hospital · CCN 050348
Practice locations
Addresses where Vannarith So is enrolled with Medicare (CMS data updated 2026-10-02).
- 1045 Atlantic Ave, Suite 812Long Beach, CA 90813 (562) 435‑5353
- 1777 N Bellflower Blvd, Suite 101Long Beach, CA 90815 (562) 966‑6138
Group practices
Medicare enrollment lists Vannarith So as a member of this group (CMS data updated 2026-10-02).
- Prohealth Partners, a Medical Group239 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Long Beach
Clinicians with the same Medicare primary specialty in Long Beach, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Tufts University School Of Medicine |
| Graduation year | 2001 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1659416584 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians