ALEXANDRA IRENE GUNDERSEN MD
NPI 1295264091
Physical Medicine & Rehabilitation in Providence, RI
About Alexandra Irene Gundersen Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALEXANDRA IRENE GUNDERSEN MD (NPI 1295264091) is an individual physical medicine & rehabilitation provider in Providence, Rhode Island, licensed in Rhode Island (MD18517) and active in the NPI registry since June 2017. She is enrolled in Medicare PECOS, is affiliated with Massachusetts General Hospital, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 3
Other Identifiers 1
Accepted Insurance
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
Alexandra Irene Gundersen Md 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
4Medicare enrollment records show Alexandra Gundersen reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Providence, RI 02903
- Reassigned Medicare billing, Rhode Island enrollment
- 1,372 clinicians in this Medicare group
Providence, RI 02903
- Reassigned Medicare billing, Rhode Island enrollment
- 182 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,234 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,360 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 6
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.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Massachusetts General Hospital
Acute Care Hospitals · Boston, MARhode Island Hospital
Acute Care Hospitals · Providence, RIThe Miriam Hospital
Acute Care Hospitals · Providence, RIFrequently 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 Gundersen's NPI number?
The NPI number for Alexandra Gundersen is 1295264091. It was assigned to this individual provider in the NPPES registry on June 6, 2017.
Where is Alexandra Gundersen located?
Alexandra Gundersen practices at 593 Eddy St Ste 7A, Providence, RI 02903. The listed phone number is (401) 444-8732.
What is Alexandra Gundersen's specialty?
The primary specialty registered for this NPI is Physical Medicine & Rehabilitation with taxonomy code 208100000X.
Is Alexandra Gundersen enrolled in Medicare?
Yes. Alexandra Gundersen 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 Alexandra Gundersen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alexandra Gundersen reassigns Medicare benefits to 4 organizations: Lifespan Physician Group, Inc. (Providence, RI), Rhode Island Hospital (Providence, RI), The General Hospital Corporation (Boston, MA) and Massachusetts General Physicians Organization Inc (Boston, 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 Alexandra Gundersen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Alexandra Gundersen accept?
Health plans from Anthem Blue Cross and Blue Shield and Taro Health list Alexandra Gundersen as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Alexandra Gundersen affiliated with any hospitals?
According to CMS data, Alexandra Gundersen is affiliated with Massachusetts General Hospital, Rhode Island Hospital and The Miriam Hospital.
When was this NPI record last updated?
The NPPES record for Alexandra Gundersen was last updated on November 25, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.