Alexandra Kammen, MD
NPI 1194256255 · Neurological Surgery Physician · Boston, MA
Enrolled with Medicare as Practitioner - Neurosurgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alexandra Kammen, MD is a Neurological Surgery Physician provider in Boston, MA (NPI 1194256255).
Provider details
- NPI number
- 1194256255
- Entity type
- Individual
- Primary specialty
- Neurological Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
9 yrs in NPPES registry
- Profile completeness33% of score
83% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$34,158 across 50 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 1200 N State StLos Angeles, CA 90033-1029Phone: (323) 226-7421
Registry dates
- Enumerated
- 2017-03-21
- Last updated
- 2024-07-08
- Certified
- 2024-07-08
Frequently asked questions
- What is Alexandra Kammen's NPI number?
- Alexandra Kammen's National Provider Identifier (NPI) is 1194256255, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alexandra Kammen's specialty?
- Alexandra Kammen is listed in the NPPES registry with a primary specialty of Neurological Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Alexandra Kammen located?
- Alexandra Kammen's practice location on file with NPPES is 55 Fruit St, Boston, MA 02114-2621.
- What is Alexandra Kammen's phone number?
- The practice phone number listed in the NPPES registry for Alexandra Kammen is (617) 726-8275.
- Does Alexandra Kammen accept Medicare?
- Alexandra Kammen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alexandra Kammen's NPI active?
- Yes — Alexandra Kammen's NPI (1194256255) is active in the NPPES registry as of the last update on 2024-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.