CATHERINE A ONORATO CRNA
NPI 1295757052
Nurse Anesthetist, Certified Registered in Greenwich, CT
About Catherine A Onorato Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CATHERINE A ONORATO CRNA (NPI 1295757052) is an individual nurse anesthetist, certified registered in Greenwich, Connecticut, licensed in Connecticut (038280) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1985).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
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
Catherine A Onorato 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 Reassignment
Medicare enrollment records show Catherine Onorato reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Greenwich, CT 06830
- Reassigned Medicare billing, Connecticut enrollment
- 43 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 06830 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.
GREENWICH, CT 06830
GREENWICH, CT 06830
GREENWICH, CT 06830
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 Catherine Onorato's NPI number?
The NPI number for Catherine Onorato is 1295757052. It was assigned to this individual provider in the NPPES registry on July 24, 2006. The provider is also known as Catherine Ciavolino Crna.
Where is Catherine Onorato located?
Catherine Onorato practices at 5 Perryridge Rd, Greenwich, CT 06830. The listed phone number is (203) 661-5330.
What is Catherine Onorato's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Catherine Onorato enrolled in Medicare?
Yes. Catherine Onorato 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 organization bills Medicare for Catherine Onorato's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Catherine Onorato reassigns Medicare benefits to Greenwich Anesthesiology Associates, PC (Greenwich, CT). The 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 Catherine Onorato's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Catherine Onorato was last updated on November 29, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years 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.
# Catherine A Onorato, CRNA · NPI 1295757052
Nurse Anesthetist, Certified Registered physician in Greenwich, Connecticut. Individual provider, active in the CMS NPPES registry since July 24, 2006.
## Identity
- **NPI:** 1295757052 (Entity type: Individual)
- **Enumerated:** July 24, 2006
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** 038280 (Connecticut)
- **Sole proprietor:** No
## Practice location
- **Address:** 5 PERRYRIDGE RD, Greenwich, CT 06830-4608
- **Phone:** (203) 661-5330
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging
- **Bills Medicare through:** Greenwich Anesthesiology Associates, PC (NPI 1972557486, Greenwich, CT), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1985
## Record status
- **NPPES last updated:** November 29, 2011
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Source: [NPI Profile](https://npiprofile.com/npi/1295757052) · Data from the CMS NPPES public registry.