Quick answers
- Which hospitals does Larry Siu work at?
- Medicare's official clinician data lists Larry Siu at 5 hospitals: Ahs Hospital Corp, Cooperman Barnabas Medical Center, Morristown Medical Center, Newton Medical Center and Overlook Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Larry Siu see patients?
- Medicare's clinician data lists 2 practice locations, including Morristown, NJ and West Orange, NJ. Call before your visit to confirm the address.
- What is Larry Siu's specialty?
- Medicare lists Gastroenterology as the primary specialty.
- Does Larry Siu accept Medicare assignment?
- Yes. Medicare's clinician data says Larry Siu 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.
- Does Larry Siu offer telehealth?
- Medicare's clinician data says Larry Siu offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Larry Siu?
- (973) 731-4600, as listed in official Medicare / NPI Registry data.
- What is Larry Siu's NPI number?
- 1972765675. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Larry Siu works
Medicare's Facility Affiliation Data lists Larry Siu at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Ahs Hospital CorpHackettstown, NJ · Acute Care Hospital · CCN 310115
- Cooperman Barnabas Medical CenterLivingston, NJ · Acute Care Hospital · CCN 310076
- Morristown Medical CenterMorristown, NJ · Acute Care Hospital · CCN 310015
- Newton Medical CenterNewton, NJ · Acute Care Hospital · CCN 310028
- Overlook Medical CenterSummit, NJ · Acute Care Hospital · CCN 310051
Practice locations
Addresses where Larry Siu is enrolled with Medicare (CMS data updated 2026-10-02).
- 101 Madison AveMorristown, NJ 07960
- 101 Old Short Hills Rd, Suite 217West Orange, NJ 07052 (973) 731‑4600
Group practices
Medicare enrollment lists Larry Siu as a member of this group (CMS data updated 2026-10-02).
- Barnabas Health Multispecialty23 clinicians in the group
Specialties
- Gastroenterologyprimary
Other gastroenterologists in Morristown
Clinicians with the same Medicare primary specialty in Morristown, NJ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2008 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1972765675 |
| 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