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

Internal Medicine

Wah J. Wong, DO

Works at hospitals in San Diego, CA · California

Summary

Dr. Wah J. Wong, DO is an internal medicine doctor at 6655 Alvarado Rd, San Diego, CA 92120. Phone: (310) 698-5452. Accepts Medicare assignment. In 2024, Wah J. Wong had 75 Original Medicare patients and 142 services. NPI 1205418613. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Wah J. Wong, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Wah J. Wong accept Medicare assignment?
Yes. Medicare's clinician data says Wah J. Wong accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Wah J. Wong see?
In 2024, CMS data shows 75 Original Medicare patients and 142 services for Wah J. Wong. This counts Original Medicare only and measures volume, not quality.
What is Wah J. Wong's NPI number?
1205418613. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Wah J. Wong, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients75
Services billed to Medicare142
Different services or procedures4
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)82 services
  2. Advance care planning, first 30 minutes (99497)53 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Anxiety56%
  • Arthritis52%
  • Diabetes48%
  • Depression48%

Hospitals where Wah J. Wong works

Medicare's Facility Affiliation Data lists Wah J. Wong at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Wah J. Wong is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Wah J. Wong as a member of this group (CMS data updated October 2, 2026).

  • East Campus Hospitalist Medical Group Inc28 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in San Diego

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

All internal medicine doctors in San Diego →

Other clinicians in East Campus Hospitalist Medical Group Inc

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialDO
Medical schoolNova Southeastern College Of Osteo Medicine
Graduation year2021 (5 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1205418613
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 October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians