MS. ALEXANDRA ALFONSO CRNA
NPI 1386262129
Nurse Anesthetist, Certified Registered in Portland, ME
About Ms. Alexandra Alfonso Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. ALEXANDRA ALFONSO CRNA (NPI 1386262129) is an individual nurse anesthetist, certified registered in Portland, Maine, licensed in Maine (RNA223043) and active in the NPI registry since July 2020. She is enrolled in Medicare PECOS, is affiliated with Maine Medical Center, and maintains a secondary practice location in Chestnut Hill.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 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
Ms. Alexandra Alfonso 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 Alexandra Alfonso reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Portland, ME 04102
- Reassigned Medicare billing, Maine enrollment
- 3,140 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Maine Medical Center
Acute Care Hospitals · Portland, MEPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 04102 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
PORTLAND, ME 04102
PORTLAND, ME 04102
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 Alexandra Alfonso's NPI number?
The NPI number for Alexandra Alfonso is 1386262129. It was assigned to this individual provider in the NPPES registry on July 8, 2020.
Where is Alexandra Alfonso located?
Alexandra Alfonso practices at 22 Bramhall St, Portland, ME 04102. The listed phone number is (207) 662-0111.
What is Alexandra Alfonso's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Alexandra Alfonso enrolled in Medicare?
Yes. Alexandra Alfonso 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 Alexandra Alfonso's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alexandra Alfonso reassigns Medicare benefits to Mainehealth (Portland, ME). 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 Alexandra Alfonso's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Alexandra Alfonso affiliated with any hospitals?
According to CMS data, Alexandra Alfonso is affiliated with Maine Medical Center.
When was this NPI record last updated?
The NPPES record for Alexandra Alfonso was last updated on July 19, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Ms. Alexandra Alfonso, CRNA · NPI 1386262129
Nurse Anesthetist, Certified Registered physician in Portland, Maine. Individual provider, active in the CMS NPPES registry since July 8, 2020.
## Identity
- **NPI:** 1386262129 (Entity type: Individual)
- **Enumerated:** July 8, 2020
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** RNA223043 (Maine)
- **Sole proprietor:** No
## Practice location
- **Address:** 22 BRAMHALL ST, Portland, ME 04102-3134
- **Phone:** (207) 662-0111
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging
- **Bills Medicare through:** Mainehealth (NPI 1073701157, Portland, ME), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** July 19, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1386262129) · Data from the CMS NPPES public registry.