Dr. Sherwin Stephen Hsu, MD
- Part D claims, 2024
- 48
- Publications
- 2
- Hospital affiliations
- 1
- Medical group
- 1
- State licenses
- 2
- Practice address
- 14445 Olive View Drive, Sylmar, CA 91342
- Practice phone
- Call (818) 364-1555
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. 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.
Dr. Sherwin Stephen Hsu is an internist in Sylmar, California
Dr. Hsu practices at Olive View-UCLA Medical Center in Sylmar, California, part of County of Los Angeles.
Dr. Hsu's NPI, 1366679763, was assigned on June 12, 2009. Dr. Hsu graduated from Joe R. & Teresa Lozano Long School of Medicine in 2009. Dr. Hsu's Texas license number on file is P5081.
- NPI
- 1366679763NPI Registry (opens in a new tab)
- NPI enumeration date
- June 12, 2009
- NPI status
- Active
- Practice phone
- (818) 364-1555
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Sherwin Stephen Hsu practices at Olive View-UCLA Medical Center in Sylmar, California
Dr. Hsu's primary practice is Olive View-UCLA Medical Center, at 14445 Olive View Drive, Sylmar, CA 91342 in Los Angeles County. The practice phone is (818) 364-1555.
- Olive View-UCLA Medical Center14445 Olive View Drive, Sylmar, CA 91342 · Los Angeles CountyPhone(818) 364-1555
Source: Dmand AI Affiliation Data
Dr. Sherwin Stephen Hsu is affiliated with 1 site of care and 1 medical group
Dr. Hsu's primary practice is Olive View-UCLA Medical Center in Sylmar, California, part of County of Los Angeles. The medical group on file is Harbor-UCLA Medical Center. Dr. Hsu's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Sherwin Stephen Hsu's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hsu practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Olive View-UCLA Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Sherwin Stephen Hsu is one of 16,751 internists in California
Internal medicine is Dr. Hsu's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Hsu is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Hsu's licenses on file in 2 states: Texas and California.
Specialties and state licenses
- Internal medicine, TexasPrimary
- California license
Clinical focus
Dmand AI lists acute respiratory failure, pneumonia and respiratory infection, sepsis and syncope & collapse among the conditions Dr. Hsu treats.
Internists near Dr. 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
Dr. Sherwin Stephen Hsu's patients have a median age of 58
Across all payers, Dmand AI patient panel data puts Dr. Hsu's median patient age at 58, with 38% women.
Dr. 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 58
Patient panel by sex, all payers
- Women38%
- Men62%
Source: Dmand AI Patient Panel Data
Dr. Sherwin Stephen Hsu wrote 48 Medicare Part D claims in 2024
In 2024, Dr. Hsu wrote 48 Medicare Part D claims for 16 patients. 77% of them were for generic drugs.
Dr. Hsu's Part D claims by kind of drug, 2024
- Generic37 claims77%
- Brand-name and other11 claims23%
Drug classes CMS tracks in Dr. Hsu's Part D claims, 2024
- Antibiotics27%13 of 48 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Dr. Sherwin Stephen Hsu has 2 publications on record
Dmand AI links 2 papers to Dr. Hsu in 2025. Dr. Hsu's most frequent co-authors are Luci K. Leykum, MD, Tabatha Holtz Matthias, DO and Huy D. Phan.
Dr. Hsu's most frequent co-authors
Recent publications by Dr. Hsu
J Gen Intern Med
See who Dr. Hsu researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Hsu works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Sherwin Stephen Hsu graduated from Joe R. & Teresa Lozano Long School of Medicine
Dr. Hsu graduated from Joe R. & Teresa Lozano Long School of Medicine in 2009. Dr. Hsu is a member of SHM.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Sources for Dr. Sherwin Stephen 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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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 Dr. Sherwin Stephen 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 Dr. Sherwin Stephen Hsu's NPI number?
Dr. Sherwin Stephen Hsu's NPI number is 1366679763. It was assigned on June 12, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Sherwin Stephen Hsu?
Dr. Sherwin Stephen Hsu is an internist in Sylmar, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Sherwin Stephen Hsu practice?
Dr. Hsu practices at 14445 Olive View Drive, Sylmar, CA 91342. Dr. Hsu's primary practice is Olive View-UCLA Medical Center in Sylmar, California, part of County of Los Angeles.
What is Dr. Sherwin Stephen Hsu's office phone number?
The practice phone on file for Dr. Hsu is (818) 364-1555.
What is Dr. Sherwin Stephen Hsu's medical license number?
Dr. Hsu's Texas license number on file is P5081, one of the licenses on file in 2 states.
Which states has Dr. Sherwin Stephen Hsu been licensed in?
Dmand AI has state licenses on file for Dr. Hsu in Texas (2012 to 2019) and California (2010 to 2026).
Which hospitals is Dr. Sherwin Stephen Hsu affiliated with?
Dr. Hsu practices at Olive View-UCLA Medical Center in Sylmar, California.
What medical group is Dr. Sherwin Stephen Hsu part of?
Dr. Hsu is linked to Harbor-UCLA Medical Center.
Is Dr. Sherwin Stephen Hsu board certified?
Yes. Dr. Hsu is board certified in internal medicine by the American Board of Internal Medicine.
Where did Dr. Sherwin Stephen Hsu go to medical school?
Dr. Hsu graduated from Joe R. & Teresa Lozano Long School of Medicine in 2009.
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How long has Dr. Sherwin Stephen Hsu been practicing?
Dr. Hsu graduated from medical school in 2009, 17 years ago.
Does Dr. Sherwin Stephen Hsu do research?
Dmand AI links 2 publications to Dr. Hsu.
Who does Dr. Sherwin Stephen Hsu publish with?
Dr. Hsu's most frequent co-authors are Luci K. Leykum, MD (1 shared paper), Tabatha Holtz Matthias, DO (1 shared paper) and Huy D. Phan (1 shared paper).
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