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Cardiovascular Disease (Cardiology)

Donald Messersmith, MD

Works at hospitals in Cocoa Beach, FL · Melbourne, FL · Florida

Summary

Donald Messersmith, MD (Cardiovascular Disease (Cardiology)) is listed by Medicare at 2 hospitals in Cocoa Beach, FL and Melbourne, FL. NPI 1538235338. 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 Donald Messersmith, 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

Cardiovascular Disease (Cardiology)Primary specialty
YesAccepts Medicare assignment
50Years since medical school (graduated 1976)
University Of Miami, Lm Miller School Of MedicineMedical school
MaleGender (as listed)
Orlando Health Medical Group IncGroup practice

Quick answers

Which hospitals does Donald Messersmith work at?
Medicare's official clinician data lists Donald Messersmith at 2 hospitals: Cape Canaveral Hospital and Orlando Health Melbourne Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Donald Messersmith see patients?
Medicare's clinician data lists 2 practice locations, including Merritt Island, FL and Melbourne, FL. Call before your visit to confirm the address.
What is Donald Messersmith's specialty?
Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty.
Does Donald Messersmith accept Medicare assignment?
Yes. Medicare's clinician data says Donald Messersmith 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 Donald Messersmith?
(772) 589-6400, as listed in official Medicare / NPI Registry data.
What is Donald Messersmith's NPI number?
1538235338. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Donald Messersmith works

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

Group practices

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

  • Orlando Health Medical Group Inc2,287 clinicians in the group

Specialties

Find other Cardiovascular Disease (Cardiology) doctors in Florida →

Other cardiologists in Florida

Clinicians with the same Medicare primary specialty in Florida — not a recommendation.

All cardiologists in Florida →

Clinician information

CredentialMD
Medical schoolUniversity Of Miami, Lm Miller School Of Medicine
Graduation year1976
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1538235338
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