Ethan W. Hsu
Internal Medicine Physician · Lancaster, CA
Ethan W. Hsu is an internal medicine physician with a practice address in Lancaster, California, and NPI 1982270401, issued on Jun 3, 2021. Check the license (California A193086, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ethan W. Hsu
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A193086 CA
Self-reported in NPPES; status is on the state search - Practice location
- 44750 60TH St W, Lancaster, CA 93536
- Phone
- (661) 729-2000
- Enumerated
- Jun 3, 2021
- Record last updated
- Jun 28, 2024
- Medicare enrollment
- Enrolled (PECOS I20250828004440); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 44750 60TH St W
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jeanne Mireille AtanganaStudent in an Organized Health Care Education/Training Program1710625389
- Anna Benitez, MSWStudent in an Organized Health Care Education/Training Program1780246439
- Gurpreet Bhasin, DDSDentist1386827541
Verify Ethan W. Hsu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A193086Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $137.06
1 payment: food and beverage; the largest payer was Phathom Pharmaceuticals, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Ethan W. Hsu among 17,696 internal medicine physician records in California
Ethan W. Hsu is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 92% of them.
- NPI issued2021 · 92% of these records are older, 5% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2024 · median 2004 among the 11,065 with a school on file
- Record last updated2024 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
55 internal medicine physician records list a practice address in Lancaster
They are 55 of the 4,273 NPPES records with a practice address in Lancaster, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Lancaster → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Canagaretnam Chandradas, M.D.Lancaster, CA 935361093840936
- Junaid Fitter, M.D.Lancaster, CA 935361255466835
- Ali Jafferi, M.D.Lancaster, CA 935361912042235
- Kartikey Mehta, M.D.Lancaster, CA 935361184750473
- Jose Pascual, M.D.Lancaster, CA 935361306981683
- Marvin Ross, M.D.Lancaster, CA 935361659408227
- Sangar Selva, MDLancaster, CA 935361114957925
- Violeta Vallejo-Sinavsky, M.D.Lancaster, CA 935361013042357
Common questions
What is Ethan W. Hsu's NPI number?
Ethan W. Hsu's National Provider Identifier (NPI) is 1982270401, issued on Jun 3, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Ethan W. Hsu located?
The NPPES record lists a practice address at 44750 60TH St W, Lancaster, CA, 93536. Phone: (661) 729-2000. Providers update this record themselves, so call before visiting.
How can I verify Ethan W. Hsu's license?
NPPES lists California license number A193086, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.