BRIAN FENN CRNA
NPI 1891779732
Nurse Anesthetist, Certified Registered in Plymouth, MA
About Brian Fenn Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
BRIAN FENN CRNA (NPI 1891779732) is an individual nurse anesthetist, certified registered in Plymouth, Massachusetts, licensed in Massachusetts (RN174475) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (1985).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
Other Identifiers 5
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
Brian Fenn 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
7Medicare enrollment records show Brian Fenn reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Plymouth, MA 02360
- Reassigned Medicare billing, Massachusetts enrollment
- 556 clinicians in this Medicare group
Winchester, MA 01890
- Reassigned Medicare billing, Massachusetts enrollment
- 88 clinicians in this Medicare group
Winchester, MA 01890
- Reassigned Medicare billing, Massachusetts enrollment
- 105 clinicians in this Medicare group
Middleton, MA 01949
- Reassigned Medicare billing, New Hampshire enrollment
- 49 clinicians in this Medicare group
Rye, NH 03870
- Reassigned Medicare billing, New Hampshire enrollment
- 2 clinicians in this Medicare group
Barrington, NH 03825
- Reassigned Medicare billing, New Hampshire enrollment
- 2 clinicians in this Medicare group
Barrington, NH 03825
- Reassigned Medicare billing, New Hampshire enrollment
- 11 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 3
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 02360 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.
PLYMOUTH, MA 02360
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 Brian Fenn's NPI number?
The NPI number for Brian Fenn is 1891779732. It was assigned to this individual provider in the NPPES registry on December 5, 2005.
Where is Brian Fenn located?
Brian Fenn practices at 275 Sandwich St, Plymouth, MA 02360. The listed phone number is (508) 746-2000.
What is Brian Fenn's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Brian Fenn enrolled in Medicare?
Yes. Brian Fenn 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 Brian Fenn's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Brian Fenn reassigns Medicare benefits to 7 organizations: Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (Plymouth, MA), Winchester Anesthesia Associates 2 Inc (Winchester, MA), Winchester Anesthesia Associates, Inc (Winchester, MA), Icon Anesthesia Services Of New England LLC (Middleton, MA), Rye Surgical Center, LLC (Rye, NH) and 2 more organizations, listed in the Medicare section above. 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 Brian Fenn'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 Brian Fenn was last updated on January 4, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Brian Fenn, CRNA · NPI 1891779732
Nurse Anesthetist, Certified Registered physician in Plymouth, Massachusetts. Individual provider, active in the CMS NPPES registry since December 5, 2005.
## Identity
- **NPI:** 1891779732 (Entity type: Individual)
- **Enumerated:** December 5, 2005
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** RN174475 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 275 SANDWICH ST, Plymouth, MA 02360
- **Phone:** (508) 746-2000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging
- **Bills Medicare through:** 7 organizations under Medicare reassignment (form CMS-855R): Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (NPI 1568859643, Plymouth, MA); Winchester Anesthesia Associates 2 Inc (NPI 1427599588, Winchester, MA); Winchester Anesthesia Associates, Inc (NPI 1972626117, Winchester, MA); Icon Anesthesia Services Of New England LLC (NPI 1629583323, Middleton, MA); Rye Surgical Center, LLC (NPI 1336562156, Rye, NH); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1985
## Record status
- **NPPES last updated:** January 4, 2023
- **Other identifiers:** Medicaid 0810500 (OH); Medicaid 3134668 (NH); Medicaid 74382060 (KY); and 2 more
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Source: [NPI Profile](https://npiprofile.com/npi/1891779732) · Data from the CMS NPPES public registry.