TONYA L PREVIGLIAN CRNA
NPI 1659443059
Nurse Anesthetist, Certified Registered in Olean, NY
About Tonya L Previglian Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TONYA L PREVIGLIAN CRNA (NPI 1659443059) is an individual nurse anesthetist, certified registered in Olean, New York, licensed in New York (412948-1) and active in the NPI registry since November 2006. She is affiliated with Kenmore Mercy Hospital, maintains 3 additional practice locations, and is a graduate of State University Of New York At Buffalo School Of Medicine (1997).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Tonya L Previglian Crna is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
4Medicare enrollment records show Tonya Previglian reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
West Seneca, NY 14224
- Reassigned Medicare billing, New York enrollment
- 44 clinicians in this Medicare group
Buffalo, NY 14203
- Reassigned Medicare billing, New York enrollment
- 182 clinicians in this Medicare group
Buffalo, NY 14215
- Reassigned Medicare billing, New York enrollment
- 66 clinicians in this Medicare group
Melville, NY 11747
- Reassigned Medicare billing, New York enrollment
- 508 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Kenmore Mercy Hospital
Acute Care Hospitals · Kenmore, NYOlean General Hospital
Acute Care Hospitals · Olean, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 14760 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Tonya Previglian's NPI number?
The NPI number for Tonya Previglian is 1659443059. It was assigned to this individual provider in the NPPES registry on November 14, 2006.
Where is Tonya Previglian located?
Tonya Previglian practices at 515 Main St, Olean, NY 14760. The listed phone number is (716) 373-2600.
What is Tonya Previglian's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Tonya Previglian enrolled in Medicare?
Yes. Tonya Previglian is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Tonya Previglian's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tonya Previglian reassigns Medicare benefits to 4 organizations: Niagara Frontier Anesthesia Services LLP (West Seneca, NY), Great Lakes Anesthesiology, PC (Buffalo, NY), Anesthesiology Medical Consultants, PLLC (Buffalo, NY) and North American Partners In Anesthesia LLP (Melville, NY). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Tonya Previglian's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Tonya Previglian affiliated with any hospitals?
According to CMS data, Tonya Previglian is affiliated with Kenmore Mercy Hospital and Olean General Hospital.
When was this NPI record last updated?
The NPPES record for Tonya Previglian was last updated on August 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Tonya L Previglian, CRNA · NPI 1659443059
Nurse Anesthetist, Certified Registered physician in Olean, New York. Individual provider, active in the CMS NPPES registry since November 14, 2006.
## Identity
- **NPI:** 1659443059 (Entity type: Individual)
- **Enumerated:** November 14, 2006
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** 412948-1 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 515 MAIN ST, Olean, NY 14760-1513
- **Phone:** (716) 373-2600
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Niagara Frontier Anesthesia Services LLP (NPI 1962444505, West Seneca, NY); Great Lakes Anesthesiology, PC (NPI 1306852181, Buffalo, NY); Anesthesiology Medical Consultants, PLLC (NPI 1366487555, Buffalo, NY); North American Partners In Anesthesia LLP (NPI 1649264706, Melville, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** State University Of New York At Buffalo School Of Medicine, class of 1997
## Record status
- **NPPES last updated:** August 18, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1659443059) · Data from the CMS NPPES public registry.