DR. ERIN YIM M.D.
NPI 1396326062
Hospitalist in Los Angeles, CA
About Dr. Erin Yim M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ERIN YIM M.D. (NPI 1396326062) is an individual hospitalist provider in Los Angeles, California, licensed in California (A192378) and active in the NPI registry since April 2021. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Loma Linda University School Of Medicine (2021).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 2
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. Erin Yim 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 Reassignments
2Medicare enrollment records show Erin Yim reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Los Angeles, CA 90034
- Reassigned Medicare billing, California enrollment
- 13,921 clinicians in this Medicare group
Duarte, CA 91010
- Reassigned Medicare billing, California enrollment
- 1,335 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 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.
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 Erin Yim's NPI number?
The NPI number for Erin Yim is 1396326062. It was assigned to this individual provider in the NPPES registry on April 15, 2021.
Where is Erin Yim located?
Erin Yim practices at 757 Westwood Plz Ste 7501, Los Angeles, CA 90095. The listed phone number is (310) 267-9643.
What is Erin Yim's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Erin Yim enrolled in Medicare?
Yes. Erin Yim 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 Erin Yim's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Erin Yim reassigns Medicare benefits to 2 organizations: Southern California Permanente Medical Group (Los Angeles, CA) and City Of Hope Medical Foundation (Duarte, 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 Erin Yim'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 Erin Yim was last updated on September 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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. Erin Yim, M.D. · NPI 1396326062
Hospitalist physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since April 15, 2021.
## Identity
- **NPI:** 1396326062 (Entity type: Individual)
- **Enumerated:** April 15, 2021
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** A192378 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 757 WESTWOOD PLZ STE 7501, Los Angeles, CA 90095-8358
- **Phone:** (310) 267-9643
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Southern California Permanente Medical Group (NPI 1043242563, Los Angeles, CA); City Of Hope Medical Foundation (NPI 1871886366, Duarte, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Loma Linda University School Of Medicine, class of 2021
## Record status
- **NPPES last updated:** September 18, 2025
---
Source: [NPI Profile](https://npiprofile.com/npi/1396326062) · Data from the CMS NPPES public registry.