Quick answers
- Which hospitals does Jay B. Greenberg work at?
- Medicare's official clinician data lists Jay B. Greenberg at 1 hospital: Meritus Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jay B. Greenberg see patients?
- Medicare's clinician data lists 1 practice location in Hagerstown, MD. Call before your visit to confirm the address.
- What is Jay B. Greenberg's specialty?
- Medicare lists Obstetrics/Gynecology as the primary specialty.
- Does Jay B. Greenberg accept Medicare assignment?
- Yes. Medicare's clinician data says Jay B. Greenberg 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 Jay B. Greenberg?
- (240) 313-9650, as listed in official Medicare / NPI Registry data.
- What is Jay B. Greenberg's NPI number?
- 1154322238. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jay B. Greenberg works
Medicare's Facility Affiliation Data lists Jay B. Greenberg at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Meritus Medical CenterHagerstown, MD · Acute Care Hospital · CCN 210001
Practice locations
Addresses where Jay B. Greenberg is enrolled with Medicare (CMS data updated 2026-10-02).
- 1130 Professional CtHagerstown, MD 21740 (240) 313‑9650
Group practices
Medicare enrollment lists Jay B. Greenberg as a member of this group (CMS data updated 2026-10-02).
- Medical Practices of Antietam, LLC234 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Hagerstown
Clinicians with the same Medicare primary specialty in Hagerstown, MD — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | George Washington University School Of Medicine |
| Graduation year | 1980 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1154322238 |
| 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