DR. JOSEPH NATHANIEL MEHRABI MD
NPI 1942886379
Internal Medicine - Rheumatology in Mission Hills, CA
About Dr. Joseph Nathaniel Mehrabi Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOSEPH NATHANIEL MEHRABI MD (NPI 1942886379) is an individual rheumatology provider in Mission Hills, California, licensed in California (A194640) and active in the NPI registry since March 2021. He is enrolled in Medicare PECOS and is a graduate of Other (2021).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Joseph Nathaniel Mehrabi Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Joseph Mehrabi reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Los Angeles, CA 90015
- Reassigned Medicare billing, California enrollment
- 2,052 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 91345 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.
MISSION HILLS, CA 91345
MISSION HILLS, CA 91345
MISSION HILLS, CA 91345
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 Joseph Mehrabi's NPI number?
The NPI number for Joseph Mehrabi is 1942886379. It was assigned to this individual provider in the NPPES registry on March 24, 2021.
Where is Joseph Mehrabi located?
Joseph Mehrabi practices at 11600 Indian Hills Rd, Mission Hills, CA 91345. The listed phone number is (818) 838-4500.
What is Joseph Mehrabi's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.
Is Joseph Mehrabi enrolled in Medicare?
Yes. Joseph Mehrabi is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Joseph Mehrabi's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Joseph Mehrabi reassigns Medicare benefits to Healthcare Partners Affiliates Medical Group (Los Angeles, CA). The 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 Joseph Mehrabi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Joseph Mehrabi was last updated on August 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Dr. Joseph Nathaniel Mehrabi, MD · NPI 1942886379
Rheumatology physician in Mission Hills, California. Individual provider, active in the CMS NPPES registry since March 24, 2021.
## Identity
- **NPI:** 1942886379 (Entity type: Individual)
- **Enumerated:** March 24, 2021
- **Primary specialty:** Internal Medicine - Rheumatology · taxonomy 207RR0500X
- **State license:** A194640 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 11600 INDIAN HILLS RD, Mission Hills, CA 91345-1225
- **Phone:** (818) 838-4500
## 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:** Healthcare Partners Affiliates Medical Group (NPI 1659312593, Los Angeles, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2021
## Record status
- **NPPES last updated:** August 24, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1942886379) · Data from the CMS NPPES public registry.