DR. BERJ GEORGE DEMIRJIAN M.D.
NPI 1578711982
Internal Medicine in Los Angeles, CA
About Dr. Berj George Demirjian M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. BERJ GEORGE DEMIRJIAN M.D. (NPI 1578711982) is an individual internal medicine provider in Los Angeles, California, licensed in California (A97497) and active in the NPI registry since August 2008. He is enrolled in Medicare PECOS and is a graduate of Other (2005).
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. Berj George Demirjian 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 Berj Demirjian reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Los Angeles, CA 90034
- Reassigned Medicare billing, California enrollment
- Also billed through NPI 1396287082 (California)
- 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.
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 90073 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.
LOS ANGELES, CA 90073
LOS ANGELES, CA 90073
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 Berj Demirjian's NPI number?
The NPI number for Berj Demirjian is 1578711982. It was assigned to this individual provider in the NPPES registry on August 28, 2008.
Where is Berj Demirjian located?
Berj Demirjian practices at 11301 Wilshire Blvd 691/111q Room 3025, Los Angeles, CA 90073. The listed phone number is (310) 478-3711.
What is Berj Demirjian's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Berj Demirjian enrolled in Medicare?
Yes. Berj Demirjian 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 Berj Demirjian's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Berj Demirjian reassigns Medicare benefits to Southern California Permanente 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 Berj Demirjian'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 Berj Demirjian was last updated on December 2, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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. Berj George Demirjian, M.D. · NPI 1578711982
Internal Medicine physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since August 28, 2008.
## Identity
- **NPI:** 1578711982 (Entity type: Individual)
- **Enumerated:** August 28, 2008
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** A97497 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 11301 WILSHIRE BLVD, 691/111Q ROOM 3025, Los Angeles, CA 90073-1003
- **Phone:** (310) 478-3711
## 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:** Southern California Permanente Medical Group (NPI 1043242563, Los Angeles, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2005
## Record status
- **NPPES last updated:** December 2, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1578711982) · Data from the CMS NPPES public registry.