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General Surgery

Samir D. Johna, MD

Sees patients in Redlands, CA · Fontana, CA · California

Summary

Samir D. Johna, MD (General Surgery) is enrolled with Medicare at 2 practice locations in Redlands, CA and Fontana, CA. NPI 1063571628. 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 Samir D. Johna, 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

General SurgeryPrimary specialty
YesAccepts Medicare assignment
43Years since medical school (graduated 1983)
MaleGender (as listed)
Southern California Permanente Medical GroupGroup practice

Quick answers

Where does Samir D. Johna see patients?
Medicare's clinician data lists 2 practice locations, including Redlands, CA and Fontana, CA. Call before your visit to confirm the address.
What is Samir D. Johna's specialty?
Medicare lists General Surgery as the primary specialty.
Does Samir D. Johna accept Medicare assignment?
Yes. Medicare's clinician data says Samir D. Johna 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 Samir D. Johna?
(909) 809-3222, as listed in official Medicare / NPI Registry data.
What is Samir D. Johna's NPI number?
1063571628. 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 Samir D. Johna is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Samir D. Johna as a member of this group (CMS data updated 2026-10-02).

  • Southern California Permanente Medical Group11,293 clinicians in the group

Specialties

Find other General Surgery doctors in California →

Other general surgeons in Redlands

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

All general surgeons in Redlands →

Clinician information

CredentialMD
Graduation year1983
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1063571628
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