Gregory V. Tobias, MD

Medicare activity in 2024

Official CMS public-use data for Gregory V. Tobias, 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. Insertion of artery tube for blood sampling or infusion through skin (36620)18 services
2. Anesthesia for procedure on heart and large blood vessels using heart-lung machine (1 year or older) (00562)15 services
3. Anesthesia for procedure to assess heart electrical activity (00537)11 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 blood pressure75%
• High cholesterol75%
• Atrial fibrillation60%
• Arthritis56%
• Ischemic heart disease56%
• Diabetes54%

Hospitals where Gregory V. Tobias works

Medicare's Facility Affiliation Data lists Gregory V. Tobias 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.

• Mercy Hospital of BuffaloBuffalo, NY · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 330279

Practice locations

Addresses where Gregory V. Tobias is enrolled with Medicare (CMS data updated October 2, 2026).

• 515 Abbott Rd, Suite 410Buffalo, NY 14220 (716) 826‑6628

Group practices

Medicare enrollment lists Gregory V. Tobias as a member of this group (CMS data updated October 2, 2026).

• Abbott Anesthesiologist Associates PC18 clinicians in the group

Specialties

• Anesthesiologyprimary

Find other Anesthesiology doctors in New York →

Other anesthesiologists in Buffalo

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

• Katherine A. Gambacorta, DO
• Oksana Fabri, MD
• Joanne M. Massucci, MD
• Melissa L. Williams, MD
• Audrey M. Jensen, MD
• Joanna Aiken, DO
• Jack R. Perez-Perez Hodgkins
• Erik J. Jensen, MD

All anesthesiologists in Buffalo →

Other clinicians in Abbott Anesthesiologist Associates PC

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

• Audrey M. Jensen, MD
• Anthony J. Winkowski, MD
• Stephen C. Gladysz, MD
• Jillian L. Gugino, MD
• Lori A. Lee, PA
• Salvatore J. Parlato, 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