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Internal Medicine

Tan L. Wong, MD

Works at hospitals in Pomona, CA · California

Summary

Tan L. Wong, MD (Internal Medicine) is listed by Medicare at 1 hospital in Pomona, CA. NPI 1790728749. 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 Tan L. Wong, 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
42Years since medical school (graduated 1984)
MaleGender (as listed)

Quick answers

Which hospitals does Tan L. Wong work at?
Medicare's official clinician data lists Tan L. Wong at 1 hospital: Pomona Valley Hospital Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Tan L. Wong see patients?
Medicare's clinician data lists 2 practice locations, including La Verne, CA and Rosemead, CA. Call before your visit to confirm the address.
What is Tan L. Wong's specialty?
Medicare lists Internal Medicine as the primary specialty, and also Family Practice.
Does Tan L. Wong accept Medicare assignment?
Yes. Medicare's clinician data says Tan L. Wong 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 Tan L. Wong offer telehealth?
Medicare's clinician data says Tan L. Wong offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Tan L. Wong?
(909) 596-1941, as listed in official Medicare / NPI Registry data.
What is Tan L. Wong's NPI number?
1790728749. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Tan L. Wong works

Medicare's Facility Affiliation Data lists Tan L. Wong 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 Tan L. Wong is enrolled with Medicare (CMS data updated 2026-10-02).

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in California

Clinicians with the same Medicare primary specialty in California — not a recommendation.

All internal medicine doctors in California →

Clinician information

CredentialMD
Graduation year1984
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1790728749
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