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Emergency Medicine

Jonathan L. Cheng, MD

Works at hospitals in Vallejo, CA · California

Summary

Jonathan L. Cheng, MD (Emergency Medicine) is listed by Medicare at 1 hospital in Vallejo, CA. NPI 1669035283. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Jonathan L. Cheng, 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
7Years since medical school (graduated 2019)
MaleGender (as listed)
Permanente Medical Group IncGroup practice

Quick answers

Which hospitals does Jonathan L. Cheng work at?
Medicare's official clinician data lists Jonathan L. Cheng at 1 hospital: Kaiser Foundation Hospital and Rehab Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Jonathan L. Cheng see patients?
Medicare's clinician data lists 1 practice location in Vacaville, CA. Call before your visit to confirm the address.
What is Jonathan L. Cheng's specialty?
Medicare lists Emergency Medicine as the primary specialty.
Does Jonathan L. Cheng accept Medicare assignment?
Yes. Medicare's clinician data says Jonathan L. Cheng 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 Jonathan L. Cheng?
(707) 624-4000, as listed in official Medicare / NPI Registry data.
What is Jonathan L. Cheng's NPI number?
1669035283. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Jonathan L. Cheng works

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

Group practices

Medicare enrollment lists Jonathan L. Cheng as a member of this group (CMS data updated 2026-10-02).

  • Permanente Medical Group Inc10,996 clinicians in the group

Specialties

Find other Emergency Medicine doctors in California →

Other emergency medicine doctors in Vacaville

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

All emergency medicine doctors in Vacaville →

Clinician information

CredentialMD
Graduation year2019
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1669035283
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