DR. MARILYN LI MD
NPI 1528260825
Allergy & Immunology in Beverly Hills, CA
About Dr. Marilyn Li Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARILYN LI MD (NPI 1528260825) is an individual allergy & immunology provider in Beverly Hills, California, licensed in California (A64596) and active in the NPI registry since May 2007. She is enrolled in Medicare PECOS, maintains a secondary practice location in Los Angeles, and is a graduate of Other (1996).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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. Marilyn Li 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
3Medicare enrollment records show Marilyn Li reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Los Angeles, CA 90048
- Reassigned Medicare billing, California enrollment
- 2,118 clinicians in this Medicare group
Los Angeles, CA 90033
- Reassigned Medicare billing, California enrollment
- 2,445 clinicians in this Medicare group
Fullerton, CA 92835
- Reassigned Medicare billing, California enrollment
- 2 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.
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BEVERLY HILLS, CA 90211
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 Marilyn Li's NPI number?
The NPI number for Marilyn Li is 1528260825. It was assigned to this individual provider in the NPPES registry on May 31, 2007.
Where is Marilyn Li located?
Marilyn Li practices at 250 N Robertson Blvd Ste 501, Beverly Hills, CA 90211. The listed phone number is (310) 423-3040.
What is Marilyn Li's specialty?
The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.
Is Marilyn Li enrolled in Medicare?
Yes. Marilyn Li 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 Marilyn Li's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marilyn Li reassigns Medicare benefits to 3 organizations: Cedars-Sinai Medical Care Foundation (Los Angeles, CA), Usc Care Medical Group, Inc (Los Angeles, CA) and Saba Haq Above Medical PC (Fullerton, 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 Marilyn Li'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 Marilyn Li was last updated on August 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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. Marilyn Li, MD · NPI 1528260825
Allergy & Immunology physician in Beverly Hills, California. Individual provider, active in the CMS NPPES registry since May 31, 2007.
## Identity
- **NPI:** 1528260825 (Entity type: Individual)
- **Enumerated:** May 31, 2007
- **Primary specialty:** Allergy & Immunology · taxonomy 207K00000X
- **State license:** A64596 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 250 N ROBERTSON BLVD STE 501, Beverly Hills, CA 90211-1770
- **Phone:** (310) 423-3040
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Cedars-Sinai Medical Care Foundation (NPI 1043826720, Los Angeles, CA); Usc Care Medical Group, Inc (NPI 1902846306, Los Angeles, CA); Saba Haq Above Medical PC (NPI 1508739749, Fullerton, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1996
## Record status
- **NPPES last updated:** August 25, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1528260825) · Data from the CMS NPPES public registry.