Quick answers
- Which hospitals does Joseph Marine work at?
- Medicare's official clinician data lists Joseph Marine at 4 hospitals: Johns Hopkins Bayview Medical Center, Johns Hopkins Howard County Medical Center, The Johns Hopkins Hospital and Umd Upper Chesapeake Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Joseph Marine see patients?
- Medicare's clinician data lists 2 practice locations, including Baltimore, MD and Middle River, MD. Call before your visit to confirm the address.
- What is Joseph Marine's specialty?
- Medicare lists Cardiac Electrophysiology as the primary specialty, and also Cardiovascular Disease (Cardiology) and Internal Medicine.
- Does Joseph Marine accept Medicare assignment?
- Medicare's clinician data says Joseph Marine may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- Does Joseph Marine offer telehealth?
- Medicare's clinician data says Joseph Marine offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Joseph Marine?
- (410) 550-0100, as listed in official Medicare / NPI Registry data.
- What is Joseph Marine's NPI number?
- 1902848278. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Joseph Marine works
Medicare's Facility Affiliation Data lists Joseph Marine at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Johns Hopkins Bayview Medical CenterBaltimore, MD · Acute Care Hospital · CCN 210029
- Johns Hopkins Howard County Medical CenterColumbia, MD · Acute Care Hospital · CCN 210048
- The Johns Hopkins HospitalBaltimore, MD · Acute Care Hospital · CCN 210009
- Umd Upper Chesapeake Medical CenterBel Air, MD · Acute Care Hospital · CCN 210049
Practice locations
Addresses where Joseph Marine is enrolled with Medicare (CMS data updated 2026-10-02).
- 4940 Eastern AveBaltimore, MD 21224 (410) 550‑0100
- 6201 Greenleigh AveMiddle River, MD 21220
Group practices
Medicare enrollment lists Joseph Marine as a member of these groups (CMS data updated 2026-10-02).
- Johns Hopkins University2,909 clinicians in the group
- Johns Hopkins University713 clinicians in the group
Specialties
Other cardiac electrophysiologists in Baltimore
Clinicians with the same Medicare primary specialty in Baltimore, MD — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, San Francisco School Of Medicine |
| Graduation year | 1994 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1902848278 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians