Quick answers
- Which hospitals does Gregory Tiesi work at?
- Medicare's official clinician data lists Gregory Tiesi at 5 hospitals: Jersey Shore University Medical Center, JFK University Medical Center, Ocean Medical Center, Riverview Medical Center and Southern Ocean Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Gregory Tiesi see patients?
- Medicare's clinician data lists 13 practice locations, including Red Bank, NJ, Manahawkin, NJ and Neptune, NJ. Call before your visit to confirm the address.
- What is Gregory Tiesi's specialty?
- Medicare lists Surgical Oncology as the primary specialty.
- Does Gregory Tiesi accept Medicare assignment?
- Yes. Medicare's clinician data says Gregory Tiesi 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 Tiesi?
- (732) 264-1132, as listed in official Medicare / NPI Registry data.
- What is Gregory Tiesi's NPI number?
- 1942464003. 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 Tiesi works
Medicare's Facility Affiliation Data lists Gregory Tiesi at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Jersey Shore University Medical CenterNeptune, NJ · Acute Care Hospital · CCN 310073
- JFK University Medical CenterEdison, NJ · Acute Care Hospital · CCN 310108
- Ocean Medical CenterBrick, NJ · Acute Care Hospital · CCN 310052
- Riverview Medical CenterRed Bank, NJ · Acute Care Hospital · CCN 310034
- Southern Ocean Medical CenterManahawkin, NJ · Acute Care Hospital · CCN 310113
Practice locations
Addresses where Gregory Tiesi is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 13; the Medicare profile lists all.
- 1 Riverview PlzRed Bank, NJ 07701 (732) 264‑1132
- 1 Riverview Plz, Fl 2Red Bank, NJ 07701
- 1140 Route 72 WManahawkin, NJ 08050 (609) 597‑6011
- 1301 Route 72 WManahawkin, NJ 08050
- 19 Davis AveNeptune, NJ 07753
Group practices
Medicare enrollment lists Gregory Tiesi as a member of this group (CMS data updated 2026-10-02).
- Hackensack Meridian Health Medical Group - Specialty Care PC1,922 clinicians in the group
Specialties
- Surgical Oncologyprimary
Other surgical oncologists in New Jersey
Clinicians with the same Medicare primary specialty in New Jersey — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2007 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1942464003 |
| 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