Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Tonya L Previglian, CRNA

Individual provider Certified Registered Nurse Anesthetist · NPI 1659443059

Tonya L Previglian, CRNA is registered under Certified Registered Nurse Anesthetist (CRNA) in West Seneca, New York. Graduated from State University of New York at Buffalo School of Medicine in 1997, 29 years ago. Practices with Great Lakes Anesthesiology PC, a 90-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in New York.

Years since qualifying
29
Trained at
State University of New York at Buffalo School of Medicine
Licensed in
NY
In the registry since
2006
What do these letters mean?
CRNA — Certified Registered Nurse Anesthetist
An advanced practice nurse who administers anaesthesia.

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Practice location Address checks out

4185 Seneca St Ste 11
West Seneca, NY 14224-3565
Phone: (716) 674-8189
Fax: (716) 712-0469
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 3921 Sheridan Dr, Amherst, NY 14226-1747 — (716) 250-6520
  • 3095 Harlem Rd, Cheektowaga, NY 14225-2500 — (716) 896-3815

Specialties & licences

Certified Registered Nurse Anesthetist (primary) Taxonomy 367500000X · Licence 412948-1 (NY)

Record details

NPI number1659443059
Entity typeIndividual (Type 1)
GenderFemale
Credentials CRNA
Sole proprietorNo
NPI enumeratedNovember 14, 2006
Last updated in NPPESJuly 21, 2022

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolSTATE UNIVERSITY OF NEW YORK AT BUFFALO SCHOOL OF MEDICINE
Graduated 1997 (29 years in practice)
Group practice Great Lakes Anesthesiology Pc — 90 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients100
Services billed 101 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Great Lakes Anesthesiology PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 90 clinicians in the practice; 12 are shown here.

Other providers in West Seneca