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Internal Medicine

Jackson Littlejohn, MD

Works at hospitals in San Antonio, TX · Texas

Summary

Jackson Littlejohn, MD (Internal Medicine) is listed by Medicare at 2 hospitals in San Antonio, TX. NPI 1124604152. 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 Jackson Littlejohn, 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
5Years since medical school (graduated 2021)
Texas Tech University Health Science Center School Of MedicineMedical school
MaleGender (as listed)
Hospital Medicine Services of TX, PLLCGroup practice

Quick answers

Which hospitals does Jackson Littlejohn work at?
Medicare's official clinician data lists Jackson Littlejohn at 2 hospitals: Methodist Hospital and Methodist Hospital Stone Oak. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Jackson Littlejohn see patients?
Medicare's clinician data lists 1 practice location in Live Oak, TX. Call before your visit to confirm the address.
What is Jackson Littlejohn's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Jackson Littlejohn accept Medicare assignment?
Yes. Medicare's clinician data says Jackson Littlejohn 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 Jackson Littlejohn?
(210) 757-7000, as listed in official Medicare / NPI Registry data.
What is Jackson Littlejohn's NPI number?
1124604152. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Jackson Littlejohn works

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

Group practices

Medicare enrollment lists Jackson Littlejohn as a member of this group (CMS data updated 2026-10-02).

  • Hospital Medicine Services of TX, PLLC378 clinicians in the group

Specialties

Find other Internal Medicine doctors in Texas →

Other internal medicine doctors in Live Oak

Clinicians with the same Medicare primary specialty in Live Oak, TX — not a recommendation.

All internal medicine doctors in Live Oak →

Clinician information

CredentialMD
Medical schoolTexas Tech University Health Science Center School Of Medicine
Graduation year2021
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1124604152
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