ARIEL NASIM MAJIDI
NPI 1245736867
Hospitalist in Cambridge, MA
About Ariel Nasim Majidi NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ARIEL NASIM MAJIDI (NPI 1245736867) is an individual hospitalist provider in Cambridge, Massachusetts, licensed in Massachusetts (286569) and active in the NPI registry since April 2018. She is enrolled in Medicare PECOS, is affiliated with North Shore Medical Center -, and is a graduate of Emory University School Of Medicine (2018).
NPPES Registry Identity
Specialties & Licenses 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 and accepts Medicare assignment
Ariel Nasim Majidi 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
2Medicare enrollment records show Ariel Majidi 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
- 6,360 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,234 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.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
North Shore Medical Center -
Acute Care Hospitals · Salem, MAMassachusetts General Hospital
Acute Care Hospitals · Boston, MAMassachusetts Eye And Ear Infirmary -
Acute Care Hospitals · Boston, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02139 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.
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 Ariel Majidi's NPI number?
The NPI number for Ariel Majidi is 1245736867. It was assigned to this individual provider in the NPPES registry on April 3, 2018.
Where is Ariel Majidi located?
Ariel Majidi practices at 1493 Cambridge St, Cambridge, MA 02139. The listed phone number is (617) 665-1000.
What is Ariel Majidi's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Ariel Majidi enrolled in Medicare?
Yes. Ariel Majidi 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 Ariel Majidi's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ariel Majidi reassigns Medicare benefits to 2 organizations: Massachusetts General Physicians Organization Inc (Boston, MA) and The General Hospital Corporation (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 Ariel Majidi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ariel Majidi accept?
Health plans from Anthem Blue Cross and Blue Shield and Taro Health list Ariel Majidi 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.
Is Ariel Majidi affiliated with any hospitals?
According to CMS data, Ariel Majidi is affiliated with North Shore Medical Center -, Massachusetts General Hospital and Massachusetts Eye And Ear Infirmary -.
When was this NPI record last updated?
The NPPES record for Ariel Majidi was last updated on September 17, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Ariel Nasim Majidi · NPI 1245736867
Hospitalist physician in Cambridge, Massachusetts. Individual provider, active in the CMS NPPES registry since April 3, 2018.
## Identity
- **NPI:** 1245736867 (Entity type: Individual)
- **Enumerated:** April 3, 2018
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** 286569 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 1493 CAMBRIDGE ST, Cambridge, MA 02139-1047
- **Phone:** (617) 665-1000
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Massachusetts General Physicians Organization Inc (NPI 1801874573, Boston, MA); The General Hospital Corporation (NPI 1023049236, Boston, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Emory University School Of Medicine, class of 2018
## Record status
- **NPPES last updated:** September 17, 2021
---
Source: [NPI Profile](https://npiprofile.com/npi/1245736867) · Data from the CMS NPPES public registry.