AHMAD RIAD JAMAL RAMADAN M.D.
NPI 1164738910
Psychiatry & Neurology - Neurocritical Care in Orange, CA
About Ahmad Riad Jamal Ramadan M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
AHMAD RIAD JAMAL RAMADAN M.D. (NPI 1164738910) is an individual neurocritical care provider in Orange, California, licensed in California (C201158) and active in the NPI registry since August 2010. He is enrolled in Medicare PECOS, maintains a secondary practice location in Detroit, and is a graduate of Other (2010).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
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
Ahmad Riad Jamal Ramadan M.d. 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 Ahmad Riad Ramadan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Orange, CA 92868
- Reassigned Medicare billing, California enrollment
- 135 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
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.
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.
ORANGE, CA 92868
ORANGE, CA 92868
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 Ahmad Riad Ramadan's NPI number?
The NPI number for Ahmad Riad Ramadan is 1164738910. It was assigned to this individual provider in the NPPES registry on August 30, 2010.
Where is Ahmad Riad Ramadan located?
Ahmad Riad Ramadan practices at 101 The City Dr S, Orange, CA 92868. The listed phone number is (714) 456-8888.
What is Ahmad Riad Ramadan's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurocritical Care, with taxonomy code 2084A2900X.
Is Ahmad Riad Ramadan enrolled in Medicare?
Yes. Ahmad Riad Ramadan 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 Ahmad Riad Ramadan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ahmad Riad Ramadan reassigns Medicare benefits to Regents Of The University Of Claifornia Univ Neursciences (Orange, 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 Ahmad Riad Ramadan'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 Ahmad Riad Ramadan was last updated on October 27, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Ahmad Riad Jamal Ramadan, M.D. · NPI 1164738910
Neurocritical Care physician in Orange, California. Individual provider, active in the CMS NPPES registry since August 30, 2010.
## Identity
- **NPI:** 1164738910 (Entity type: Individual)
- **Enumerated:** August 30, 2010
- **Primary specialty:** Psychiatry & Neurology - Neurocritical Care · taxonomy 2084A2900X
- **State license:** C201158 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 101 THE CITY DR S, Orange, CA 92868-3201
- **Phone:** (714) 456-8888
## 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:** Regents Of The University Of Claifornia Univ Neursciences (NPI 1205884210, Orange, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2010
## Record status
- **NPPES last updated:** October 27, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1164738910) · Data from the CMS NPPES public registry.