Jason H. Tam, MD

Medicare activity in 2024

Official CMS public-use data for Jason H. Tam, 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. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)493 services
2. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)228 services
3. Aspiration and/or injection of fluid from large joint (20610)149 services
4. Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)129 services
5. Hyaluronan or derivative, orthovisc, for intra-articular injection, per dose (J7324)102 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 cholesterol75%
• High blood pressure71%
• Arthritis66%
• Ischemic heart disease33%
• Diabetes28%
• Osteoporosis22%

Hospitals where Jason H. Tam works

Medicare's Facility Affiliation Data lists Jason H. Tam 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.

• Long Island Jewish Medical CenterNew Hyde Park, NY · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 330195
• Mount Sinai South NassauOceanside, NY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 330198

Practice locations

Addresses where Jason H. Tam is enrolled with Medicare (CMS data updated October 2, 2026).

• 1155 Northern BlvdManhasset, NY 11030 (516) 390‑2850
• 9901 Queens BlvdRego Park, NY 11374 (718) 520‑6100

Group practices

Medicare enrollment lists Jason H. Tam as a member of this group (CMS data updated October 2, 2026).

• North Shore Medical Group of the Mount Sinai School of Medicine331 clinicians in the group

Specialties

• Orthopedic Surgeryprimary
• Sports Medicinealso

Find other Orthopedic Surgery doctors in New York →

Other orthopedic surgeons in Manhasset

Clinicians with the same Medicare primary specialty in Manhasset, NY — not a recommendation.

• Stanley E. Asnis, MD
• Barry G. Simonson, MD
• Lewis B. Lane, MD
• Rohit Verma, MD
• Anthony H. Zou, MD
• Joshua Steinvurzel, MD
• John E. Morrison, MD

All orthopedic surgeons in Manhasset →

Other clinicians in North Shore Medical Group of the Mount Sinai School of Medicine

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

• Steven M. Weiss, MD
• Jacqueline G. Oboyle, DO
• Stephen W. Lastig, MD
• Susan N. Ramdhaney, MD
• Steven Xian, MD
• George M. Schmitz, 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