Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Alexandra Alfonso, CRNA

Certified Registered Nurse Anesthetist in Portland, ME · enumerated 2020.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1386262129

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Registry record

Entity type Individual (Type 1)

Name Ms. Alexandra Alfonso

Credential CRNA

Sex Female

Practice address 22 Bramhall St, Portland, ME, 04102

Phone (207) 662-0111

Enumeration date Jul 8, 2020

Last updated in NPPES Jul 19, 2022

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License RN2295294 (MA) Secondary

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License RNA223043 (ME) Primary

CRNA · Certified Registered Nurse Anesthetist: An advanced practice nurse specializing in anesthesia care. About the CRNA credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Alexandra Alfonso practice?

The practice location on file with NPPES is in Portland, ME. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Alexandra Alfonso?

The National Provider Identifier (NPI) for Alexandra Alfonso is 1386262129, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Jeffrey Berman Pediatric Ophthalmology and Strabismus Specialist Physician · Portland, ME NPI 1407852528 Suzanne Maynard Certified Registered Nurse Anesthetist · Portland, ME NPI 1386641355 Monique Patterson Certified Registered Nurse Anesthetist · Portland, ME NPI 1750389359 Christian Trahan Certified Registered Nurse Anesthetist · Portland, ME NPI 1477552180 Mark Parker Nephrology Physician · Portland, ME NPI 1770583346 Thomas Charrette Hospitalist Physician · Portland, ME NPI 1679565626 Donald Hankinson Neuromusculoskeletal Medicine & OMM Physician · Portland, ME NPI 1285627257 Heidi Deblock Internal Medicine Physician · Portland, ME NPI 1922095892

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-19.