Quick answers
- Which hospitals does Gregory M. Baker work at?
- Medicare's official clinician data lists Gregory M. Baker at 3 hospitals: Christiana Hospital, Hospital of Univ of Pennsylvania and Union Hospital of Cecil County. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Gregory M. Baker see patients?
- Medicare's clinician data lists 7 practice locations, including Newark, DE, Middletown, DE and Bear, DE. Call before your visit to confirm the address.
- What is Gregory M. Baker's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty, and also Interventional Cardiology.
- Does Gregory M. Baker accept Medicare assignment?
- Yes. Medicare's clinician data says Gregory M. Baker 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 Gregory M. Baker?
- (302) 366-8600, as listed in official Medicare / NPI Registry data.
- What is Gregory M. Baker's NPI number?
- 1255726667. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Gregory M. Baker works
Medicare's Facility Affiliation Data lists Gregory M. Baker at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Christiana HospitalNewark, DE · Acute Care Hospital · CCN 080001
- Hospital of Univ of PennsylvaniaPhiladelphia, PA · Acute Care Hospital · CCN 390111
- Union Hospital of Cecil CountyElkton, MD · Acute Care Hospital · CCN 210032
Practice locations
Addresses where Gregory M. Baker is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 7; the Medicare profile lists all.
- 1 Centurian Dr, Suite 200Newark, DE 19713 (302) 366‑8600
- 1050 Industrial DrMiddletown, DE 19709 (302) 366‑8600
- 121 Becks Woods Dr, Suite 200Bear, DE 19701 (302) 366‑8600
- 34446 King St RowLewes, DE 19958 (302) 366‑8600
- 34453 King St RowLewes, DE 19958 (302) 366‑8600
Group practices
Medicare enrollment lists Gregory M. Baker as a member of these groups (CMS data updated 2026-10-02).
- Christiana Care Health Services Inc1,483 clinicians in the group
- Cardiology Physicians, LLC49 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Delaware →
Other cardiologists in Newark
Clinicians with the same Medicare primary specialty in Newark, DE — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2015 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1255726667 |
| 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