Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Medical Oncology

Omar H. Butt, MD

Works at hospitals in Saint Louis, MO · Saint Peters, MO · Creve Coeur, MO · Missouri

Summary

Omar H. Butt, MD (Medical Oncology) is listed by Medicare at 4 hospitals in Saint Louis, MO, Saint Peters, MO and Creve Coeur, MO. NPI 1750731337. 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 Omar H. Butt, 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

Medical OncologyPrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
10Years since medical school (graduated 2016)
Perelman School Of Med At The University Of PennsylvaniaMedical school
MaleGender (as listed)
Washington UniversityGroup practice

Quick answers

Which hospitals does Omar H. Butt work at?
Medicare's official clinician data lists Omar H. Butt at 4 hospitals: Barnes Jewish Hospital, Barnes-Jewish St Peters Hospital, Barnes-Jewish West County Hospital and Missouri Baptist Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Omar H. Butt see patients?
Medicare's clinician data lists 2 practice locations, including Saint Louis, MO. Call before your visit to confirm the address.
What is Omar H. Butt's specialty?
Medicare lists Medical Oncology as the primary specialty, and also Internal Medicine.
Does Omar H. Butt accept Medicare assignment?
Yes. Medicare's clinician data says Omar H. Butt 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 Omar H. Butt offer telehealth?
Medicare's clinician data says Omar H. Butt offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Omar H. Butt?
(314) 747-3000, as listed in official Medicare / NPI Registry data.
What is Omar H. Butt's NPI number?
1750731337. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Omar H. Butt works

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

Group practices

Medicare enrollment lists Omar H. Butt as a member of this group (CMS data updated 2026-10-02).

  • Washington University3,029 clinicians in the group

Specialties

Find other Medical Oncology doctors in Missouri →

Other oncologists in Saint Louis

Clinicians with the same Medicare primary specialty in Saint Louis, MO — not a recommendation.

All oncologists in Saint Louis →

Clinician information

CredentialMD
Medical schoolPerelman School Of Med At The University Of Pennsylvania
Graduation year2016
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1750731337
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