Justin K. Greisberg, MD

Medicare activity in 2024

Official CMS public-use data for Justin K. Greisberg, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Most frequent services

1. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)279 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)273 services
3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)137 services
4. X-ray of foot, minimum of 3 views (73630)62 services
5. X-ray of ankle, minimum of 3 views (73610)32 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

• High cholesterol73%
• Arthritis71%
• High blood pressure63%
• Diabetes26%
• Anxiety24%
• Osteoporosis24%

Hospitals where Justin K. Greisberg works

Medicare's Facility Affiliation Data lists Justin K. Greisberg at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

• New York-Presbyterian HospitalNew York, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330101

Practice locations

Addresses where Justin K. Greisberg is enrolled with Medicare (CMS data updated October 2, 2026).

• 223 N Van Dien Ave, Valley HospitalRidgewood, NJ 07450 (212) 305‑0914
• 622 W 168th StNew York, NY 10032

Group practices

Medicare enrollment lists Justin K. Greisberg as a member of these groups (CMS data updated October 2, 2026).

• Trustees of Columbia University in the City of New York2,296 clinicians in the group
• Columbia Doctors of New Jersey P C59 clinicians in the group

Specialties

• Orthopedic Surgeryprimary

Find other Orthopedic Surgery doctors in New Jersey →

Other orthopedic surgeons in Ridgewood

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

• Anthony J. Delfico, MD
• Ismar Dizdarevic, MD
• Mark Pizzurro, MD
• Louis F. Amorosa, MD
• Matthew Bauer, MD
• Andrew A. Brief, MD
• Brian De Palma, MD
• Seth Grossman, MD

All orthopedic surgeons in Ridgewood →

Other clinicians in Trustees of Columbia University in the City of New York

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Philip E. George, MD
• Jason S. Hawksworth, MD
• Jonathan M. Barasch, MD
• Mark J. Heath, MD
• Enad M. Dawod, MD
• Cortessa L. Russell, MD

Clinician information

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 October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians