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

Diagnostic Radiology

Johnny Alexander, MD

Works at hospitals in Rockville, MD · Port Charlotte, FL · Panama City, FL … · Maryland, Florida

Summary

Johnny Alexander, MD (Diagnostic Radiology) is listed by Medicare at 5 hospitals in Rockville, MD, Port Charlotte, FL and Panama City, FL and other places. NPI 1649439043. 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 Johnny Alexander, 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

Diagnostic RadiologyPrimary specialty
YesAccepts Medicare assignment
24Years since medical school (graduated 2002)
Saint Louis University School Of MedicineMedical school
MaleGender (as listed)
Mori Bean and Brooks IncGroup practice (+5 more)

Quick answers

Which hospitals does Johnny Alexander work at?
Medicare's official clinician data lists Johnny Alexander at 5 hospitals: Adventist Healthcare Shady Grove Medical Center, HCA Florida Fawcett Hospital, HCA Florida Gulf Coast Hospital, Holy Cross Hospital and Sinai Hospital of Baltimore. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Johnny Alexander see patients?
Medicare's clinician data lists 11 practice locations, including Silver Spring, MD, Waycross, GA and Germantown, MD. Call before your visit to confirm the address.
What is Johnny Alexander's specialty?
Medicare lists Diagnostic Radiology as the primary specialty.
Does Johnny Alexander accept Medicare assignment?
Yes. Medicare's clinician data says Johnny Alexander 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 Johnny Alexander?
(301) 754-7000, as listed in official Medicare / NPI Registry data.
What is Johnny Alexander's NPI number?
1649439043. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Johnny Alexander works

Medicare's Facility Affiliation Data lists Johnny Alexander 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 Johnny Alexander is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 11; the Medicare profile lists all.

Group practices

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

  • Mori Bean and Brooks Inc977 clinicians in the group
  • Jamaica Hospital255 clinicians in the group
  • Lifebridge Community Physicians Inc183 clinicians in the group
  • Howard University181 clinicians in the group
  • Professional Services of Holy Cross158 clinicians in the group
  • Eastpointe Radiologists, P.C.110 clinicians in the group

Specialties

Find other Diagnostic Radiology doctors in Maryland →

Other radiologists in Silver Spring

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

All radiologists in Silver Spring →

Clinician information

CredentialMD
Medical schoolSaint Louis University School Of Medicine
Graduation year2002
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1649439043
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