Ethan W. Hsu
- Hospital affiliations
- 1
- Industry payments
- $137
- Medical group
- 1
- State licenses
- 3
- Year NPI issued
- 2021
- Practice address
- 335 E Ave K6, Lancaster, CA 93535
- Practice phone
- Call (661) 948-8581
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
High Desert Regional Health Center
Lancaster, California
Find Ethan Hsu's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Ethan W. Hsu is an internist in Lancaster, California
Ethan Hsu practices at High Desert Regional Health Center in Lancaster, California.
Ethan Hsu's NPI, 1982270401, was assigned on June 3, 2021. Ethan Hsu graduated from University Institute of Medicine 1 in 1991. Ethan Hsu holds California license A193086.
- NPI
- 1982270401NPI Registry (opens in a new tab)
- NPI enumeration date
- June 3, 2021
- NPI status
- Active
- Practice phone
- (661) 948-8581
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 28
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Ethan W. Hsu practices at High Desert Regional Health Center in Lancaster, California
Ethan Hsu's primary practice is High Desert Regional Health Center, at 335 E Ave K6, Lancaster, CA 93535 in Los Angeles County. The practice phone is (661) 948-8581.
- High Desert Regional Health Center335 E Ave K6, Lancaster, CA 93535 · Los Angeles CountyPhone(661) 948-8581
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Ethan W. Hsu is affiliated with 4 sites of care and 1 medical group
Ethan Hsu's primary practice is High Desert Regional Health Center in Lancaster, California. Ethan Hsu is also affiliated with Olive View-UCLA Medical Center. The medical group on file is Harbor-UCLA Medical Center. Dmand AI also links Ethan Hsu to 1 more group practice or clinic and 1 home health agency, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Ethan W. Hsu's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Ethan Hsu practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| High Desert Regional Health Center | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Ethan W. Hsu is one of 16,751 internists in California
Internal medicine is Ethan Hsu's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Ethan Hsu is board certified in geriatric medicine by the American Board of Internal Medicine. Dmand AI has Ethan Hsu's licenses on file in 3 states: California, New York and Nevada.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
- New York license
- Nevada license
Internists near Ethan Hsu
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Ethan W. Hsu's patients have a median age of 55
Across all payers, Dmand AI patient panel data puts Ethan Hsu's median patient age at 55, with 67% women.
Ethan Hsu's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 55
Patient panel by sex, all payers
- Women67%
- Men33%
Source: Dmand AI Patient Panel Data
Ethan W. Hsu received $137 in industry payments in 2024
CMS Open Payments shows 1 general payment to Ethan Hsu from 1 drug or device company in 2024. Food and beverage make up the largest share, 100% of the total. Phathom Pharmaceuticals, Inc. paid the most, $137.
Companies that paid Ethan Hsu the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Ethan W. Hsu graduated from University Institute of Medicine 1
Ethan Hsu graduated from University Institute of Medicine 1 in 1991.
- Medical school
- Board certified in geriatric medicine
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Sources for Ethan W. Hsu's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Ethan W. Hsu
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Ethan W. Hsu's NPI number?
Ethan W. Hsu's NPI number is 1982270401. It was assigned on June 3, 2021, and it is active in the NPI Registry.
What does Ethan W. Hsu specialize in?
Ethan W. Hsu is an internist in Lancaster, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Ethan W. Hsu practice?
Ethan Hsu practices at 335 E Ave K6, Lancaster, CA 93535. Ethan Hsu's primary practice is High Desert Regional Health Center in Lancaster, California. Dmand AI also links Ethan Hsu to 1 group practice or clinic and 1 home health agency.
What is Ethan W. Hsu's office phone number?
The practice phone on file for Ethan Hsu is (661) 948-8581.
What is Ethan W. Hsu's medical license number?
Ethan Hsu holds California license A193086, one of the licenses on file in 3 states.
Which states has Ethan W. Hsu been licensed in?
Dmand AI has state licenses on file for Ethan Hsu in California (2024 to 2026), New York (2024 to 2026) and Nevada (2023).
Which hospitals is Ethan W. Hsu affiliated with?
Ethan Hsu is affiliated with Olive View-UCLA Medical Center.
What medical group is Ethan W. Hsu part of?
Ethan Hsu is linked to Harbor-UCLA Medical Center.
Is Ethan W. Hsu board certified?
Yes. Ethan Hsu is board certified in geriatric medicine by the American Board of Internal Medicine.
Where did Ethan W. Hsu go to medical school?
Ethan Hsu graduated from University Institute of Medicine 1 in 1991.
Has Ethan W. Hsu received payments from drug or device companies?
CMS Open Payments shows $137 in general payments to Ethan Hsu from 1 company from 2024 to 2024. The largest total came from Phathom Pharmaceuticals, Inc.
How long has Ethan W. Hsu been practicing?
Ethan Hsu graduated from medical school in 1991, 35 years ago.
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