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Gastroenterology

Diego Lim, MD

Works at hospitals in Alton, IL · Exeter, NH · Birmingham, AL … · Illinois, New Hampshire, Alabama, South Carolina

Summary

Diego Lim, MD (Gastroenterology) is listed by Medicare at 5 hospitals in Alton, IL, Exeter, NH and Birmingham, AL and other places. NPI 1699038505. 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 Diego Lim, 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

GastroenterologyPrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
17Years since medical school (graduated 2009)
MaleGender (as listed)
Prisma Health University Medical GroupGroup practice (+5 more)

Quick answers

Which hospitals does Diego Lim work at?
Medicare's official clinician data lists Diego Lim at 5 hospitals: Alton Memorial Hospital, Exeter Hospital Inc, Grandview Medical Center, St Francis-Downtown and Tidelands Georgetown Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Diego Lim see patients?
Medicare's clinician data lists 17 practice locations, including Alton, IL, Greenville, SC and Saint Louis, MO. Call before your visit to confirm the address.
What is Diego Lim's specialty?
Medicare lists Gastroenterology as the primary specialty.
Does Diego Lim accept Medicare assignment?
Yes. Medicare's clinician data says Diego Lim 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.
Does Diego Lim offer telehealth?
Medicare's clinician data says Diego Lim offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Diego Lim?
(618) 463-7240, as listed in official Medicare / NPI Registry data.
What is Diego Lim's NPI number?
1699038505. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Diego Lim works

Medicare's Facility Affiliation Data lists Diego Lim 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 Diego Lim is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 17; the Medicare profile lists all.

Group practices

Medicare enrollment lists Diego Lim as a member of these groups (CMS data updated 2026-10-02).

  • Prisma Health University Medical Group2,493 clinicians in the group
  • MUSC Community Physicians1,544 clinicians in the group
  • Fairview Heights Medical Group SC444 clinicians in the group
  • Bon Secours Medical Group Greenville Specialty Care LLC292 clinicians in the group
  • Core Physicians LLC289 clinicians in the group
  • Georgetown Physician Associates, LLC214 clinicians in the group

Specialties

Find other Gastroenterology doctors in Illinois →

Other gastroenterologists in Alton

Clinicians with the same Medicare primary specialty in Alton, IL — not a recommendation.

All gastroenterologists in Alton →

Clinician information

CredentialMD
Graduation year2009
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1699038505
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