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Internal Medicine

Vijay Kumar, MD

Works at hospitals in Simi Valley, CA · Thousand Oaks, CA · California

Summary

Vijay Kumar, MD (Internal Medicine) is listed by Medicare at 2 hospitals in Simi Valley, CA and Thousand Oaks, CA. NPI 1689638587. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Vijay Kumar, 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

Internal MedicinePrimary specialty
May acceptAccepts Medicare assignment
YesOffers telehealth
46Years since medical school (graduated 1980)
MaleGender (as listed)

Quick answers

Which hospitals does Vijay Kumar work at?
Medicare's official clinician data lists Vijay Kumar at 2 hospitals: Adventist Health Simi Valley and Los Robles Hospital & Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Vijay Kumar see patients?
Medicare's clinician data lists 1 practice location in Simi Valley, CA. Call before your visit to confirm the address.
What is Vijay Kumar's specialty?
Medicare lists Internal Medicine as the primary specialty, and also Pulmonary Disease.
Does Vijay Kumar accept Medicare assignment?
Medicare's clinician data says Vijay Kumar may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
Does Vijay Kumar offer telehealth?
Medicare's clinician data says Vijay Kumar offers telehealth services. Ask the office which visits can be done by video or phone.
What is Vijay Kumar's NPI number?
1689638587. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Vijay Kumar works

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

  • 1174 Amazon WaySimi Valley, CA 93065

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Simi Valley

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

All internal medicine doctors in Simi Valley →

Clinician information

CredentialMD
Graduation year1980
Gender (as listed)Male
Medicare assignmentMay accept for some services
TelehealthOffers telehealth services
NPI (National Provider Identifier)1689638587
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