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

Urology

Madison Lyon, MD

Works at hospitals in San Diego, CA · California

Summary

Madison Lyon, MD (Urology) is listed by Medicare at 1 hospital in San Diego, CA. NPI 1275091662. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Madison Lyon, 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

UrologyPrimary specialty
May acceptAccepts Medicare assignment
7Years since medical school (graduated 2019)
FemaleGender (as listed)

Quick answers

Which hospitals does Madison Lyon work at?
Medicare's official clinician data lists Madison Lyon at 1 hospital: Kaiser Foundation Hospital - San Diego. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Madison Lyon see patients?
Medicare's clinician data lists 2 practice locations, including Pasaden, CA and Pasadena, CA. Call before your visit to confirm the address.
What is Madison Lyon's specialty?
Medicare lists Urology as the primary specialty.
Does Madison Lyon accept Medicare assignment?
Medicare's clinician data says Madison Lyon may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
What is Madison Lyon's NPI number?
1275091662. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Madison Lyon works

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

  • 393 E Walnut StPasaden, CA 91188
  • 393 E Walnut St Fl, 3 Phr Group Provider Enrollment UnitPasadena, CA 91188

Specialties

Find other Urology doctors in California →

Other urologists in California

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

All urologists in California →

Clinician information

CredentialMD
Graduation year2019
Gender (as listed)Female
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1275091662
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