HRAK DERDERIAN M.D.
NPI 1619034725
Emergency Medicine in West Hills, CA
About Hrak Derderian M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
HRAK DERDERIAN M.D. (NPI 1619034725) is an individual emergency medicine provider in West Hills, California, licensed in California (A92365) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS and is a graduate of Morehouse School Of Medicine (2004).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
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
Hrak Derderian 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 Reassignments
5Medicare enrollment records show Hrak Derderian reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Simi Valley, CA 93065
- Reassigned Medicare billing, California enrollment
- 33 clinicians in this Medicare group
Panorama City, CA 91402
- Reassigned Medicare billing, California enrollment
- 121 clinicians in this Medicare group
Los Angeles, CA 90095
- Reassigned Medicare billing, California enrollment
- 135 clinicians in this Medicare group
Oceanside, CA 92056
- Reassigned Medicare billing, California enrollment
- 140 clinicians in this Medicare group
Delano, CA 93215
- Reassigned Medicare billing, California enrollment
- 301 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 6
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 91307 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.
WEST HILLS, CA 91307
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 Hrak Derderian's NPI number?
The NPI number for Hrak Derderian is 1619034725. It was assigned to this individual provider in the NPPES registry on January 2, 2007.
Where is Hrak Derderian located?
Hrak Derderian practices at 7300 Medical Center Dr, West Hills, CA 91307. The listed phone number is (818) 676-4000.
What is Hrak Derderian's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Hrak Derderian enrolled in Medicare?
Yes. Hrak Derderian 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 Hrak Derderian's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Hrak Derderian reassigns Medicare benefits to 5 organizations: Synergy Observation Specialists PC (Simi Valley, CA), Can Emergency Physicians Medical Group, Inc. (Panorama City, CA), Regents Of The Univ Of Ca Emer Med (Los Angeles, CA), Team Physicians Of Southern California Medical Group, Inc. (Oceanside, CA) and Team Physicians Of California Medical Group Inc (Delano, 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 Hrak Derderian'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 Hrak Derderian was last updated on July 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.
# Hrak Derderian, M.D. · NPI 1619034725
Emergency Medicine physician in West Hills, California. Individual provider, active in the CMS NPPES registry since January 2, 2007.
## Identity
- **NPI:** 1619034725 (Entity type: Individual)
- **Enumerated:** January 2, 2007
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** A92365 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 7300 MEDICAL CENTER DR, West Hills, CA 91307-1902
- **Phone:** (818) 676-4000
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): Synergy Observation Specialists PC (NPI 1023773587, Simi Valley, CA); Can Emergency Physicians Medical Group, Inc. (NPI 1265810006, Panorama City, CA); Regents Of The Univ Of Ca Emer Med (NPI 1104889138, Los Angeles, CA); Team Physicians Of Southern California Medical Group, Inc. (NPI 1225499015, Oceanside, CA); Team Physicians Of California Medical Group Inc (NPI 1447288345, Delano, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Morehouse School Of Medicine, class of 2004
## Record status
- **NPPES last updated:** July 23, 2025
- **Other identifiers:** Other A92365 (CA); Medicaid 00A923650 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1619034725) · Data from the CMS NPPES public registry.