Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Orthopedic Surgery

Michael J. Greller, MD

Works at hospitals in Freehold, NJ · New Jersey

Summary

Michael J. Greller, MD (Orthopedic Surgery) is listed by Medicare at 1 hospital in Freehold, NJ. NPI 1194799346. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Michael J. Greller, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Orthopedic SurgeryPrimary specialty
YesAccepts Medicare assignment
32Years since medical school (graduated 1994)
Albert Einstein College Of Medicine Of Yeshiva UniversityMedical school
MaleGender (as listed)
Advanced Orthopedic and Sports Medicine Institute PCGroup practice

Quick answers

Which hospitals does Michael J. Greller work at?
Medicare's official clinician data lists Michael J. Greller at 1 hospital: Centrastate Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Michael J. Greller see patients?
Medicare's clinician data lists 2 practice locations, including Freehold, NJ and Monroe, NJ. Call before your visit to confirm the address.
What is Michael J. Greller's specialty?
Medicare lists Orthopedic Surgery as the primary specialty.
Does Michael J. Greller accept Medicare assignment?
Yes. Medicare's clinician data says Michael J. Greller 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 Michael J. Greller?
(732) 720-2555, as listed in official Medicare / NPI Registry data.
What is Michael J. Greller's NPI number?
1194799346. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Michael J. Greller works

Medicare's Facility Affiliation Data lists Michael J. Greller at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Michael J. Greller is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Michael J. Greller as a member of this group (CMS data updated 2026-10-02).

  • Advanced Orthopedic and Sports Medicine Institute PC35 clinicians in the group

Specialties

Find other Orthopedic Surgery doctors in New Jersey →

Other orthopedic surgeons in Freehold

Clinicians with the same Medicare primary specialty in Freehold, NJ — not a recommendation.

All orthopedic surgeons in Freehold →

Clinician information

CredentialMD
Medical schoolAlbert Einstein College Of Medicine Of Yeshiva University
Graduation year1994
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1194799346
CorrectionsReport 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

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians