ARASH NAEIM MD
NPI 1821017658
Internal Medicine - Hematology & Oncology in Los Angeles, CA
About Arash Naeim Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ARASH NAEIM MD (NPI 1821017658) is an individual hematology & oncology provider in Los Angeles, California, licensed in California (A62996) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and is a graduate of University Of California, Geffen School Of Medicine (1995).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
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
Arash Naeim 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 Arash Naeim reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Los Angeles, CA 90095
- Reassigned Medicare billing, California enrollment
- 1,766 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 90095 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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 90095
LOS ANGELES, CA 90095
LOS ANGELES, CA 90095
LOS ANGELES, CA 90095
LOS ANGELES, CA 90095
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 Arash Naeim's NPI number?
The NPI number for Arash Naeim is 1821017658. It was assigned to this individual provider in the NPPES registry on July 19, 2006.
Where is Arash Naeim located?
Arash Naeim practices at 200 Medical Plaza #365,530,420,120, Los Angeles, CA 90095. The listed phone number is (310) 825-6301.
What is Arash Naeim's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.
Is Arash Naeim enrolled in Medicare?
Yes. Arash Naeim 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 Arash Naeim's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Arash Naeim reassigns Medicare benefits to The Regents Of The University Of California (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 Arash Naeim'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 Arash Naeim was last updated on July 13, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Arash Naeim, MD · NPI 1821017658
Hematology & Oncology physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since July 19, 2006.
## Identity
- **NPI:** 1821017658 (Entity type: Individual)
- **Enumerated:** July 19, 2006
- **Primary specialty:** Internal Medicine - Hematology & Oncology · taxonomy 207RH0003X
- **State license:** A62996 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 200 MEDICAL PLAZA, #365,530,420,120, Los Angeles, CA 90095
- **Phone:** (310) 825-6301
## 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:** The Regents Of The University Of California (NPI 1235107566, Los Angeles, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, Geffen School Of Medicine, class of 1995
## Record status
- **NPPES last updated:** July 13, 2010
- **Other identifiers:** Medicare PIN WA62996B (CA); Medicaid 00A629960 (CA); Medicare UPIN G59772 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1821017658) · Data from the CMS NPPES public registry.