MAHDI DIAB MD
NPI 1043892391
Family Medicine in San Diego, CA
About Mahdi Diab Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MAHDI DIAB MD (NPI 1043892391) is an individual family medicine provider in San Diego, California, licensed in California (A191988) and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS and is a graduate of Other (2020).
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 and accepts Medicare assignment
Mahdi Diab 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 Reassignment
Medicare enrollment records show Mahdi Diab reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
San Diego, CA 92113
- Reassigned Medicare billing, California enrollment
- 1,100 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 92113 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.
SAN DIEGO, CA 92113
SAN DIEGO, CA 92113
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 Mahdi Diab's NPI number?
The NPI number for Mahdi Diab is 1043892391. It was assigned to this individual provider in the NPPES registry on April 26, 2021.
Where is Mahdi Diab located?
Mahdi Diab practices at 1809 National Ave, San Diego, CA 92113. The listed phone number is (619) 515-2300.
What is Mahdi Diab's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Mahdi Diab enrolled in Medicare?
Yes. Mahdi Diab 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 organization bills Medicare for Mahdi Diab's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mahdi Diab reassigns Medicare benefits to Family Health Centers Of San Diego, Inc. (San Diego, 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 Mahdi Diab'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 Mahdi Diab was last updated on January 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 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.
# Mahdi Diab, MD · NPI 1043892391
Family Medicine physician in San Diego, California. Individual provider, active in the CMS NPPES registry since April 26, 2021.
## Identity
- **NPI:** 1043892391 (Entity type: Individual)
- **Enumerated:** April 26, 2021
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** A191988 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1809 NATIONAL AVE, San Diego, CA 92113-2113
- **Phone:** (619) 515-2300
## 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:** Family Health Centers Of San Diego, Inc. (NPI 1326231713, San Diego, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** January 6, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1043892391) · Data from the CMS NPPES public registry.