CATHERINE GUAY CRNA
NPI 1881641843
Nurse Anesthetist, Certified Registered in Springfield, MA
About Catherine Guay Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CATHERINE GUAY CRNA (NPI 1881641843) is an individual nurse anesthetist, certified registered in Springfield, Massachusetts, licensed in Massachusetts (115429) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1991).
NPPES Registry Identity
Specialties & Licenses
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 Guay 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
2Medicare enrollment records show Catherine Guay reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Springfield, MA 01118
- Reassigned Medicare billing, Massachusetts enrollment
- 144 clinicians in this Medicare group
Springfield, MA 01107
- Reassigned Medicare billing, Massachusetts enrollment
- 30 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 4
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01118 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.
SPRINGFIELD, MA 01118
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 Guay's NPI number?
The NPI number for Catherine Guay is 1881641843. It was assigned to this individual provider in the NPPES registry on May 27, 2006.
Where is Catherine Guay located?
Catherine Guay practices at 908 Allen St, Springfield, MA 01118. The listed phone number is (413) 796-7494.
What is Catherine Guay's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Catherine Guay enrolled in Medicare?
Yes. Catherine Guay 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 Catherine Guay's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Catherine Guay reassigns Medicare benefits to 2 organizations: Springfield Anesthesia Service, Inc. (Springfield, MA) and Pulse Anesthesia Consultants PC (Springfield, MA). 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 Catherine Guay'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 Guay was last updated on June 3, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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 Guay, CRNA · NPI 1881641843
Nurse Anesthetist, Certified Registered physician in Springfield, Massachusetts. Individual provider, active in the CMS NPPES registry since May 27, 2006.
## Identity
- **NPI:** 1881641843 (Entity type: Individual)
- **Enumerated:** May 27, 2006
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** 115429 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 908 ALLEN ST, Springfield, MA 01118-2533
- **Phone:** (413) 796-7494 · **Fax:** (413) 796-7498
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Springfield Anesthesia Service, Inc. (NPI 1093768830, Springfield, MA); Pulse Anesthesia Consultants PC (NPI 1407560618, Springfield, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1991
## Record status
- **NPPES last updated:** June 3, 2008
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Source: [NPI Profile](https://npiprofile.com/npi/1881641843) · Data from the CMS NPPES public registry.