ALEXANDER HARRIS DILLS DO
NPI 1215514385
Radiology - Diagnostic Radiology in Boston, MA
About Alexander Harris Dills Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALEXANDER HARRIS DILLS DO (NPI 1215514385) is an individual diagnostic radiology provider in Boston, Massachusetts, licensed in Massachusetts (294308) and active in the NPI registry since March 2021. He is enrolled in Medicare PECOS, maintains a secondary practice location in Boston, and is a graduate of Chicago College Of Osteopathy (2021).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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 (PECOS)
Alexander Harris Dills Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Alexander Dills reassigns Medicare billing to 2 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
- 6,234 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02111 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 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Dills's NPI number?
The NPI number for Alexander Dills is 1215514385. It was assigned to this individual provider in the NPPES registry on March 25, 2021.
Where is Alexander Dills located?
Alexander Dills practices at 800 Washington St # 299, Boston, MA 02111. The listed phone number is (617) 636-0067.
What is Alexander Dills's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Alexander Dills enrolled in Medicare?
Yes. Alexander Dills is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Alexander Dills's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Dills reassigns Medicare benefits to 2 organizations: 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 Dills's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Alexander Dills accept?
Health plans from Taro Health list Alexander Dills 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.
When was this NPI record last updated?
The NPPES record for Alexander Dills was last updated on May 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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 Harris Dills, DO · NPI 1215514385
Diagnostic Radiology physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since March 25, 2021.
## Identity
- **NPI:** 1215514385 (Entity type: Individual)
- **Enumerated:** March 25, 2021
- **Primary specialty:** Radiology - Diagnostic Radiology · taxonomy 2085R0202X
- **State license:** 294308 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 800 WASHINGTON ST # 299, Boston, MA 02111-1552
- **Phone:** (617) 636-0067
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): 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:** Chicago College Of Osteopathy, class of 2021
## Record status
- **NPPES last updated:** May 6, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1215514385) · Data from the CMS NPPES public registry.