Andrew Toenniessen, MD

Medicare activity in 2024

Official CMS public-use data for Andrew Toenniessen, 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. Advance care planning, first 30 minutes (99497)1,747 services
2. Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)1,424 services
3. Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)302 services
4. Nursing facility discharge day management, 30 minutes or less (99315)41 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%
• Depression61%
• Diabetes53%
• Arthritis52%
• Anxiety52%

Hospitals where Andrew Toenniessen works

Medicare's Facility Affiliation Data lists Andrew Toenniessen 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.

• Bassett HealthcareCooperstown, NY · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 330136
• Kaleida HealthBuffalo, NY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 330005

Practice locations

Addresses where Andrew Toenniessen is enrolled with Medicare (CMS data updated October 2, 2026).

• 10 Munson StLe Roy, NY 14482 (585) 768‑2561
• 822 Cedar AveNiagara Falls, NY 14301 (310) 709‑1236

Group practices

Medicare enrollment lists Andrew Toenniessen as a member of these groups (CMS data updated October 2, 2026).

• Peyman Younesi MD PLLC92 clinicians in the group
• Fresh Meadows Physician Practice PLLC37 clinicians in the group
• Py Medical Services of NY PLLC14 clinicians in the group

Specialties

• General Practiceprimary

Find other General Practice doctors in New York →

Other general practitioners in New York

Clinicians with the same Medicare primary specialty in New York — not a recommendation.

• Sumitra Agarwal, MD
• Jesus M. Hernandez, MD
• Reuven C. Blobstein, MD
• Eman Alamin, MD
• Michael Tenore, DO
• Stephen R. Weinman, MD
• Michael P. Rodriguez, MD
• Tariq Waseem, MD

All general practitioners in New York →

Other clinicians in Peyman Younesi MD PLLC

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

• Russell J. Warren, PT
• Melinda Simmons
• Olubunmi A. Olojede, MD
• Florence Pua, MD
• Mohammed Hasan, MD
• Sonal Patel

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