MR. ALEXANDER SANGKYOO LEE MD
NPI 1003201922
Emergency Medicine in Los Angeles, CA
About Mr. Alexander Sangkyoo Lee Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. ALEXANDER SANGKYOO LEE MD (NPI 1003201922) is an individual emergency medicine provider in Los Angeles, California, licensed in California (A155554) and active in the NPI registry since March 2015. He is enrolled in Medicare PECOS and maintains a secondary practice location in Detroit.
NPPES Registry Identity
Specialties & Licenses 2
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 (PECOS)
Mr. Alexander Sangkyoo Lee Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Alexander Lee reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Los Angeles, CA 90033
- Reassigned Medicare billing, California enrollment
- 2,445 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 90017 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.
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 Alexander Lee's NPI number?
The NPI number for Alexander Lee is 1003201922. It was assigned to this individual provider in the NPPES registry on March 30, 2015.
Where is Alexander Lee located?
Alexander Lee practices at 1225 Wilshire Blvd, Los Angeles, CA 90017. The listed phone number is (213) 977-2121.
What is Alexander Lee's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Alexander Lee enrolled in Medicare?
Yes. Alexander Lee is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Alexander Lee's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Lee reassigns Medicare benefits to Usc Care Medical Group, Inc (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 Alexander Lee'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 Alexander Lee was last updated on July 24, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Mr. Alexander Sangkyoo Lee, MD · NPI 1003201922
Emergency Medicine physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since March 30, 2015.
## Identity
- **NPI:** 1003201922 (Entity type: Individual)
- **Enumerated:** March 30, 2015
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** A155554 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1225 WILSHIRE BLVD, Los Angeles, CA 90017
- **Phone:** (213) 977-2121
## 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:** Usc Care Medical Group, Inc (NPI 1902846306, Los Angeles, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 24, 2018
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Source: [NPI Profile](https://npiprofile.com/npi/1003201922) · Data from the CMS NPPES public registry.