ALEXANDRA NICOLE KAMMEN MD
NPI 1194256255
Neurological Surgery in Boston, MA
About Alexandra Nicole Kammen Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALEXANDRA NICOLE KAMMEN MD (NPI 1194256255) is an individual neurological surgery provider in Boston, Massachusetts, licensed in California (A162923) and active in the NPI registry since March 2017. She is enrolled in Medicare PECOS, is affiliated with St Luke's Cornwall Hospital, and maintains a secondary practice location in Los Angeles.
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
Alexandra Nicole Kammen 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 Kammen reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,360 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,234 clinicians in this Medicare group
White Plains, NY 10601
- Reassigned Medicare billing, New York enrollment
- 479 clinicians in this Medicare group
White Plains, NY 10601
- Reassigned Medicare billing, New York enrollment
- 445 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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St Luke's Cornwall Hospital
Acute Care Hospitals · Newburgh, NYWhite Plains Hospital Center
Acute Care Hospitals · White Plains, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02114 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.
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
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 Kammen's NPI number?
The NPI number for Alexandra Kammen is 1194256255. It was assigned to this individual provider in the NPPES registry on March 21, 2017.
Where is Alexandra Kammen located?
Alexandra Kammen practices at 55 Fruit St, Boston, MA 02114. The listed phone number is (617) 726-8275.
What is Alexandra Kammen's specialty?
The primary specialty registered for this NPI is Neurological Surgery with taxonomy code 207T00000X.
Is Alexandra Kammen enrolled in Medicare?
Yes. Alexandra Kammen 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 Kammen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alexandra Kammen reassigns Medicare benefits to 4 organizations: Massachusetts General Physicians Organization Inc (Boston, MA), The General Hospital Corporation (Boston, MA), East Post Road Medical Services PC (White Plains, NY) and White Plains Physician Services PC (White Plains, NY). 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 Kammen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Alexandra Kammen affiliated with any hospitals?
According to CMS data, Alexandra Kammen is affiliated with St Luke's Cornwall Hospital and White Plains Hospital Center.
When was this NPI record last updated?
The NPPES record for Alexandra Kammen was last updated on July 8, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.