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Nephrology

Cynthia Lin, MD

Works at hospitals in Mountain View, CA · Stanford, CA · California

Summary

Dr. Cynthia Lin, MD is a nephrologist at 515 S Dr, Suite 12, Mountain View, CA 94040. Phone: (408) 871-3400. Accepts Medicare assignment. In 2024, Cynthia Lin had 490 Original Medicare patients and 11,782 services. NPI 1134106388. 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.

  • Specialty: Nephrologist (Medicare lists Nephrology)
  • Address: 515 S Dr, Suite 12, Mountain View, CA 94040 · Directions
  • Phone: (408) 871‑3400
  • Medicare: Accepts Medicare assignment
  • Hospitals: El Camino Health, Stanford Health Care
  • Group practice: El Camino Health Medical Network LLC
  • Medical school: University Of Texas Southwestern Medical School At Dallas · graduated 1995 (31 years since medical school)
  • Gender (as listed): Female
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Cynthia Lin, 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 Lin accept Medicare assignment?
Yes. Medicare's clinician data says Cynthia Lin 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 Lin see?
In 2024, CMS data shows 490 Original Medicare patients and 11,782 services for Cynthia Lin. This counts Original Medicare only and measures volume, not quality.
What is Cynthia Lin's NPI number?
1134106388. 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 Lin, 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 patients490
Services billed to Medicare11,782
Different services or procedures22
Participating Medicare providerYes
Average age of these patients77

Most frequent services

  1. Injection, darbepoetin alfa, 1 microgram (non-esrd use) (J0881)9,600 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)550 services
  3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)412 services
  4. Dialysis services, per day, less than full month service (20 years or older) (90970)399 services
  5. Hemodialysis procedure with physician evaluation (90935)133 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%
  • Chronic kidney disease75%
  • Diabetes54%
  • Ischemic heart disease46%
  • Arthritis40%

Hospitals where Cynthia Lin works

Medicare's Facility Affiliation Data lists Cynthia Lin 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.

  • El Camino HealthMountain View, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050308
  • Stanford Health CareStanford, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050441

Practice locations

Addresses where Cynthia Lin is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

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

  • El Camino Health Medical Network LLC202 clinicians in the group

Specialties

Find other Nephrology doctors in California →

Other nephrologists in California

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

All nephrologists in California →

Other clinicians in El Camino Health Medical Network LLC

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

Clinician information

CredentialMD
Medical schoolUniversity Of Texas Southwestern Medical School At Dallas
Graduation year1995 (31 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1134106388
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