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Hospitalist

Mack Bell, MD

Works at hospitals in Columbia, MD · Maryland

Summary

Mack Bell, MD (Hospitalist) is listed by Medicare at 1 hospital in Columbia, MD. NPI 1801359930. 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 Mack Bell, 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

HospitalistPrimary specialty
YesAccepts Medicare assignment
7Years since medical school (graduated 2019)
University Of Maryland School Of MedicineMedical school
MaleGender (as listed)
Johns Hopkins Community Physicians, IncGroup practice

Quick answers

Which hospitals does Mack Bell work at?
Medicare's official clinician data lists Mack Bell at 1 hospital: Johns Hopkins Howard County Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Mack Bell see patients?
Medicare's clinician data lists 2 practice locations, including Baltimore, MD and Columbia, MD. Call before your visit to confirm the address.
What is Mack Bell's specialty?
Medicare lists Hospitalist as the primary specialty, and also Internal Medicine.
Does Mack Bell accept Medicare assignment?
Yes. Medicare's clinician data says Mack Bell 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 Mack Bell?
(410) 522-9800, as listed in official Medicare / NPI Registry data.
What is Mack Bell's NPI number?
1801359930. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Mack Bell works

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

Group practices

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

  • Johns Hopkins Community Physicians, Inc763 clinicians in the group

Specialties

Find other Hospitalist doctors in Maryland →

Other hospitalists in Baltimore

Clinicians with the same Medicare primary specialty in Baltimore, MD — not a recommendation.

All hospitalists in Baltimore →

Clinician information

CredentialMD
Medical schoolUniversity Of Maryland School Of Medicine
Graduation year2019
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1801359930
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