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

Internal Medicine

John Joyce

Works at hospitals in Westminster, MD · Maryland

Summary

John Joyce (Internal Medicine) is listed by Medicare at 1 hospital in Westminster, MD. NPI 1659004414. 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 John Joyce, 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

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
5Years since medical school (graduated 2021)
MaleGender (as listed)
Emergency Medicine Associates P.A., P.C.Group practice

Quick answers

Which hospitals does John Joyce work at?
Medicare's official clinician data lists John Joyce at 1 hospital: Carroll Hospital Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does John Joyce see patients?
Medicare's clinician data lists 1 practice location in Westminster, MD. Call before your visit to confirm the address.
What is John Joyce's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does John Joyce accept Medicare assignment?
Yes. Medicare's clinician data says John Joyce 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 John Joyce?
(410) 871-6700, as listed in official Medicare / NPI Registry data.
What is John Joyce's NPI number?
1659004414. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where John Joyce works

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

Group practices

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

  • Emergency Medicine Associates P.A., P.C.714 clinicians in the group

Specialties

Find other Internal Medicine doctors in Maryland →

Other internal medicine doctors in Westminster

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

All internal medicine doctors in Westminster →

Clinician information

Graduation year2021
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1659004414
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