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Internal Medicine

Alexander L. Johnson, MD

Works at hospitals in Los Banos, CA · Modesto, CA · California

Summary

Alexander L. Johnson, MD (Internal Medicine) is listed by Medicare at 2 hospitals in Los Banos, CA and Modesto, CA. NPI 1083049860. 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 Alexander L. Johnson, 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
YesAccepts Medicare assignment
14Years since medical school (graduated 2012)
MaleGender (as listed)
Sutter Valley Medical FoundationGroup practice

Quick answers

Which hospitals does Alexander L. Johnson work at?
Medicare's official clinician data lists Alexander L. Johnson at 2 hospitals: Memorial Hospital Los Banos and Memorial Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Alexander L. Johnson see patients?
Medicare's clinician data lists 3 practice locations, including Modesto, CA and Sacramento, CA. Call before your visit to confirm the address.
What is Alexander L. Johnson's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Alexander L. Johnson accept Medicare assignment?
Yes. Medicare's clinician data says Alexander L. Johnson 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 Alexander L. Johnson?
(209) 526-4500, as listed in official Medicare / NPI Registry data.
What is Alexander L. Johnson's NPI number?
1083049860. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Alexander L. Johnson works

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

Group practices

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

  • Sutter Valley Medical Foundation2,500 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Modesto

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

All internal medicine doctors in Modesto →

Clinician information

CredentialMD
Graduation year2012
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1083049860
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