ALEXANDER J NEIL MD
NPI 1477189454
Pathology - Anatomic Pathology & Clinical Pathology in Boston, MA
About Alexander J Neil Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALEXANDER J NEIL MD (NPI 1477189454) is an individual anatomic pathology & clinical pathology provider in Boston, Massachusetts, licensed in Massachusetts (1014439) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS, is affiliated with Brigham And Women's Hospital, and maintains a secondary practice location in Boston.
NPPES Registry Identity
Specialties & Licenses
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
Alexander J Neil 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 Alexander Neil reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 4,574 clinicians in this Medicare group
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 35 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Brigham And Women's Hospital
Acute Care Hospitals · Boston, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02115 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 02115
BOSTON, MA 02115
BOSTON, MA 02115
BOSTON, MA 02115
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 Alexander Neil's NPI number?
The NPI number for Alexander Neil is 1477189454. It was assigned to this individual provider in the NPPES registry on March 21, 2020.
Where is Alexander Neil located?
Alexander Neil practices at 75 Francis St, Boston, MA 02115. The listed phone number is (617) 732-5500.
What is Alexander Neil's specialty?
The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.
Is Alexander Neil enrolled in Medicare?
Yes. Alexander Neil 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 Alexander Neil's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Neil reassigns Medicare benefits to 4 organizations: Brigham & Womens Physicians Organization Inc (Boston, MA), Children's Hospital Pathology Foundation, Inc. (Boston, MA), 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 Alexander Neil's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Alexander Neil affiliated with any hospitals?
According to CMS data, Alexander Neil is affiliated with Brigham And Women's Hospital.
When was this NPI record last updated?
The NPPES record for Alexander Neil was last updated on August 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.
# Alexander J Neil, MD · NPI 1477189454
Anatomic Pathology & Clinical Pathology physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since March 21, 2020.
## Identity
- **NPI:** 1477189454 (Entity type: Individual)
- **Enumerated:** March 21, 2020
- **Primary specialty:** Pathology - Anatomic Pathology & Clinical Pathology · taxonomy 207ZP0102X
- **State license:** 1014439 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 75 FRANCIS ST, Boston, MA 02115-6110
- **Phone:** (617) 732-5500
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Brigham & Womens Physicians Organization Inc (NPI 1033535497, Boston, MA); Children's Hospital Pathology Foundation, Inc. (NPI 1376502112, Boston, MA); The General Hospital Corporation (NPI 1023049236, Boston, MA); Massachusetts General Physicians Organization Inc (NPI 1801874573, Boston, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Tufts University School Of Medicine, class of 2020
## Record status
- **NPPES last updated:** August 6, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1477189454) · Data from the CMS NPPES public registry.