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Dr. Andrew Weeks, M.D.

Gastroenterology (Gastroenterology Physician)

  • Medicare participating

At a glance

Years since graduation
14
In the NPI registry since
2012
Medicare patients seen, 2024
346

The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. What an NPI is

Education and training

  • 2012Medical school: University of Mississippi School of Medicine
  • 2012Registered with an NPI (national billing number; not a license date)

Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).

Specialties and state licenses

  • Gastroenterology Physician primary
    MS license 23757

As reported to the NPI registry. To confirm a license is current, check the state medical board.

Map: Gastroenterology per capita by county →

Where they work

Hospitals

Medical groups

Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.

Medicare patients and services

Medicare patients, 2024
346
Services billed
707
Patients’ average age
75
Most frequent Medicare services, 2023
ServiceTimesPatients
New patient office or other outpatient visit, 45-59 minutes7777
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope6764
Established patient office or other outpatient visit, 30-39 minutes6657
Removal of polyps or growths of large bowel using an endoscope with mechanical snare5856
Biopsy of large bowel using a flexible endoscope5655
Insertion of needle into vein for collection of blood sample3625
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes3636
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes2121
New patient office or other outpatient visit, 30-44 minutes2121
Established patient office or other outpatient visit, 40-54 minutes1911

Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.

Medicare prescriptions

Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.

Payments from drug and device companies

In 2025, 17 companies reported 118 payments worth $2,329 in total to this clinician.

From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.

Who received the most in Mississippi →

Other Gastroenterology clinicians in Jackson

Sources

NPI registry (CMS NPPES, November 2026; record last updated August 23, 2022), Medicare Care Compare, Medicare Physician & Other Practitioners (2024), Medicare Part D Prescribers (2024) and Open Payments (2025). Information is self-reported or billed data and may be out of date; call before visiting.

NPI 1346504768. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.