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Nephrology

Cynthia Wong, MD

Works at hospitals in Palo Alto, CA · California

Summary

Dr. Cynthia Wong, MD is a nephrologist at 725 Welch Rd, Palo Alto, CA 94304. Phone: (650) 498-7200. Accepts Medicare assignment. In 2024, Cynthia Wong had 12 Original Medicare patients and 88 services. NPI 1841214376. 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 Cynthia 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 Cynthia Wong accept Medicare assignment?
Yes. Medicare's clinician data says Cynthia 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 Cynthia Wong see?
In 2024, CMS data shows 12 Original Medicare patients and 88 services for Cynthia Wong. This counts Original Medicare only and measures volume, not quality.
What is Cynthia Wong's NPI number?
1841214376. 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 Cynthia 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 patients12
Services billed to Medicare88
Different services or procedures13
Participating Medicare providerYes

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).

  • Chronic kidney disease75%

Hospitals where Cynthia Wong works

Medicare's Facility Affiliation Data lists Cynthia 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 Cynthia Wong is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

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

  • LPCH Medical Group Div of Lucile337 clinicians in the group

Specialties

Find other Nephrology doctors in California →

Other nephrologists in Palo Alto

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

All nephrologists in Palo Alto →

Other clinicians in LPCH Medical Group Div of Lucile

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

Clinician information

CredentialMD
Medical schoolUniversity Of Washington School Of Medicine
Graduation year1999 (27 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1841214376
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