DR. ABDUL-RAHMAN FADI DIAB MD
NPI 1811699572
Internal Medicine in Boston, MA
About Dr. Abdul-rahman Fadi Diab Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ABDUL-RAHMAN FADI DIAB MD (NPI 1811699572) is an individual internal medicine provider in Boston, Massachusetts, licensed in Massachusetts (1027915) and active in the NPI registry since March 2023. He is enrolled in Medicare PECOS and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
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)
Dr. Abdul-rahman Fadi Diab Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Abdul-rahman Diab reassigns Medicare billing to 3 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 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 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 Abdul-rahman Diab's NPI number?
The NPI number for Abdul-rahman Diab is 1811699572. It was assigned to this individual provider in the NPPES registry on March 20, 2023.
Where is Abdul-rahman Diab located?
Abdul-rahman Diab practices at 75 Francis St, Boston, MA 02115. The listed phone number is (617) 278-0055.
What is Abdul-rahman Diab's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Abdul-rahman Diab enrolled in Medicare?
Yes. Abdul-rahman Diab is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Abdul-rahman Diab's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Abdul-rahman Diab reassigns Medicare benefits to 3 organizations: Brigham & Womens Physicians Organization 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 Abdul-rahman Diab's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Abdul-rahman Diab accept?
Health plans from Taro Health list Abdul-rahman Diab 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 Abdul-rahman Diab was last updated on September 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 44 days 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.
# Dr. Abdul-Rahman Fadi Diab, MD · NPI 1811699572
Internal Medicine physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since March 20, 2023.
## Identity
- **NPI:** 1811699572 (Entity type: Individual)
- **Enumerated:** March 20, 2023
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 1027915 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 75 FRANCIS ST, Boston, MA 02115-6110
- **Phone:** (617) 278-0055 · **Fax:** (617) 278-6906
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Brigham & Womens Physicians Organization Inc (NPI 1033535497, 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
## Record status
- **NPPES last updated:** September 11, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1811699572) · Data from the CMS NPPES public registry.