ELLEN KLAPPER MD
NPI 1487650966
Pathology - Anatomic Pathology & Clinical Pathology in West Hollywood, CA
About Ellen Klapper Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ELLEN KLAPPER MD (NPI 1487650966) is an individual anatomic pathology & clinical pathology provider in West Hollywood, California, licensed in California (G62356) and active in the NPI registry since June 2005. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Ellen Klapper Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Ellen Klapper reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Los Angeles, CA 90048
- Reassigned Medicare billing, California enrollment
- 2,118 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 3
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 90048 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.
WEST HOLLYWOOD, CA 90048
WEST HOLLYWOOD, CA 90048
WEST HOLLYWOOD, CA 90048
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 Ellen Klapper's NPI number?
The NPI number for Ellen Klapper is 1487650966. It was assigned to this individual provider in the NPPES registry on June 21, 2005.
Where is Ellen Klapper located?
Ellen Klapper practices at 8700 Beverly Blvd Rm 8725, West Hollywood, CA 90048. The listed phone number is (818) 338-8103.
What is Ellen Klapper's specialty?
The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.
Is Ellen Klapper enrolled in Medicare?
Yes. Ellen Klapper is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Ellen Klapper's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ellen Klapper reassigns Medicare benefits to Cedars-Sinai Medical Care Foundation (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 Ellen Klapper'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 Ellen Klapper was last updated on August 6, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Ellen Klapper, MD · NPI 1487650966
Anatomic Pathology & Clinical Pathology physician in West Hollywood, California. Individual provider, active in the CMS NPPES registry since June 21, 2005.
## Identity
- **NPI:** 1487650966 (Entity type: Individual)
- **Enumerated:** June 21, 2005
- **Primary specialty:** Pathology - Anatomic Pathology & Clinical Pathology · taxonomy 207ZP0102X
- **State license:** G62356 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 8700 BEVERLY BLVD, RM 8725, West Hollywood, CA 90048-1804
- **Phone:** (818) 338-8103 · **Fax:** (818) 338-8119
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Cedars-Sinai Medical Care Foundation (NPI 1043826720, Los Angeles, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 6, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1487650966) · Data from the CMS NPPES public registry.