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

Emergency Medicine

Calvin C. Ly, DO

Sees patients in Fairfield, CA · California

Summary

Calvin C. Ly, DO (Emergency Medicine) is enrolled with Medicare at 1 practice location in Fairfield, CA. NPI 1376761767. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Calvin C. Ly, 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

Emergency MedicinePrimary specialty
YesAccepts Medicare assignment
21Years since medical school (graduated 2005)
Kansas City University Of Med & Biosciences, College Of Osteo MedMedical school
MaleGender (as listed)
SNF Specialists Medical CorporationGroup practice

Quick answers

Where does Calvin C. Ly see patients?
Medicare's clinician data lists 1 practice location in Fairfield, CA. Call before your visit to confirm the address.
What is Calvin C. Ly's specialty?
Medicare lists Emergency Medicine as the primary specialty.
Does Calvin C. Ly accept Medicare assignment?
Yes. Medicare's clinician data says Calvin C. Ly 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.
What is the phone number for Calvin C. Ly?
(800) 973-1540, as listed in official Medicare / NPI Registry data.
What is Calvin C. Ly's NPI number?
1376761767. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Calvin C. Ly is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Calvin C. Ly as a member of this group (CMS data updated 2026-10-02).

  • SNF Specialists Medical Corporation28 clinicians in the group

Specialties

Find other Emergency Medicine doctors in California →

Other emergency medicine doctors in Fairfield

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

All emergency medicine doctors in Fairfield →

Clinician information

CredentialDO
Medical schoolKansas City University Of Med & Biosciences, College Of Osteo Med
Graduation year2005
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1376761767
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians