ETHAN WIN THEIN LIN MD
NPI 1255871711
Hospitalist in Los Angeles, CA
About Ethan Win Thein Lin Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ETHAN WIN THEIN LIN MD (NPI 1255871711) is an individual hospitalist provider in Los Angeles, California, licensed in California (A164328) and active in the NPI registry since March 2017. He is enrolled in Medicare PECOS, maintains a secondary practice location in San Diego, and is a graduate of Other (2016).
NPPES Registry Identity
Specialties & Licenses 3
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
Ethan Win Thein Lin 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
12Medicare enrollment records show Ethan Lin reassigns Medicare billing to 12 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Los Angeles, CA 90015
- Reassigned Medicare billing, California enrollment
- 2,052 clinicians in this Medicare group
Los Angeles, CA 90012
- Reassigned Medicare billing, California enrollment
- 17 clinicians in this Medicare group
Los Angeles, CA 90033
- Reassigned Medicare billing, California enrollment
- 962 clinicians in this Medicare group
Colton, CA 92324
- Reassigned Medicare billing, California enrollment
- 338 clinicians in this Medicare group
Apple Valley, CA 92307
- Reassigned Medicare billing, California enrollment
- 914 clinicians in this Medicare group
San Diego, CA 92123
- Reassigned Medicare billing, California enrollment
- 1,437 clinicians in this Medicare group
San Diego, CA 92123
- Reassigned Medicare billing, California enrollment
- 78 clinicians in this Medicare group
San Francisco, CA 94109
- Reassigned Medicare billing, California enrollment
- 213 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 5,645 clinicians in this Medicare group
San Francisco, CA 94122
- Reassigned Medicare billing, California enrollment
- 5,544 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 4
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.
Referred Medical Equipment & Supplies CMS DME claims 4
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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 Ethan Lin's NPI number?
The NPI number for Ethan Lin is 1255871711. It was assigned to this individual provider in the NPPES registry on March 3, 2017.
Where is Ethan Lin located?
Ethan Lin practices at 1100 Wilshire Blvd Apt 2507, Los Angeles, CA 90017. The listed phone number is (510) 612-5529.
What is Ethan Lin's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Ethan Lin enrolled in Medicare?
Yes. Ethan Lin 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 Ethan Lin's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ethan Lin reassigns Medicare benefits to 12 organizations: Healthcare Partners Affiliates Medical Group (Los Angeles, CA), Global Physicians Resources Inc (Los Angeles, CA), Galen Inpatient Physicians PC (Los Angeles, CA), Quantum Healthcare Medical Associates Inc. (Colton, CA), Hospitalist Medicine Physicians Of California, Inc (Apple Valley, CA) and 7 more organizations, listed in the Medicare section above. 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 Ethan Lin'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 Ethan Lin was last updated on October 20, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Ethan Win Thein Lin, MD · NPI 1255871711
Hospitalist physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since March 3, 2017.
## Identity
- **NPI:** 1255871711 (Entity type: Individual)
- **Enumerated:** March 3, 2017
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** A164328 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1100 WILSHIRE BLVD APT 2507, Los Angeles, CA 90017-1963
- **Phone:** (510) 612-5529
## 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:** 12 organizations under Medicare reassignment (form CMS-855R): Healthcare Partners Affiliates Medical Group (NPI 1659312593, Los Angeles, CA); Global Physicians Resources Inc (NPI 1972044469, Los Angeles, CA); Galen Inpatient Physicians PC (NPI 1205787686, Los Angeles, CA); Quantum Healthcare Medical Associates Inc. (NPI 1568490597, Colton, CA); Hospitalist Medicine Physicians Of California, Inc (NPI 1184663965, Apple Valley, CA); and 7 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2016
## Record status
- **NPPES last updated:** October 20, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1255871711) · Data from the CMS NPPES public registry.