DR. ROYA HORMOZDIARAN MD,
NPI 1427245349
Internal Medicine in Irvine, CA
About Dr. Roya Hormozdiaran Md, NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ROYA HORMOZDIARAN MD, (NPI 1427245349) is an individual internal medicine provider in Irvine, California, licensed in California (A96931) and active in the NPI registry since September 2007. She is enrolled in Medicare PECOS and is a graduate of Other (2008).
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
Dr. Roya Hormozdiaran 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 Reassignments
2Medicare enrollment records show Roya Hormozdiaran reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Irvine, CA 92606
- Reassigned Medicare billing, California enrollment
Anaheim, CA 92807
- Reassigned Medicare billing, California enrollment
- 13,921 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 92606 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 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
IRVINE, CA 92606
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 Roya Hormozdiaran's NPI number?
The NPI number for Roya Hormozdiaran is 1427245349. It was assigned to this individual provider in the NPPES registry on September 25, 2007.
Where is Roya Hormozdiaran located?
Roya Hormozdiaran practices at 62 Corporate Park Ste 130, Irvine, CA 92606. The listed phone number is (949) 735-2155.
What is Roya Hormozdiaran's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Roya Hormozdiaran enrolled in Medicare?
Yes. Roya Hormozdiaran 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 Roya Hormozdiaran's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Roya Hormozdiaran reassigns Medicare benefits to 2 organizations: Roya Hormozdiaran MD Professional Corporation (Irvine, CA) and Southern California Permanente Medical Group (Anaheim, CA). 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 Roya Hormozdiaran'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 Roya Hormozdiaran was last updated on November 4, 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.
# Dr. Roya Hormozdiaran, MD, · NPI 1427245349
Internal Medicine physician in Irvine, California. Individual provider, active in the CMS NPPES registry since September 25, 2007.
## Identity
- **NPI:** 1427245349 (Entity type: Individual)
- **Enumerated:** September 25, 2007
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** A96931 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 62 CORPORATE PARK STE 130, Irvine, CA 92606-3132
- **Phone:** (949) 735-2155
## 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): Roya Hormozdiaran MD Professional Corporation (NPI 1881488047, Irvine, CA); Southern California Permanente Medical Group (NPI 1952333460, Anaheim, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2008
## Record status
- **NPPES last updated:** November 4, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1427245349) · Data from the CMS NPPES public registry.