Patrick Hsu

  • Fremont, CA
  • Emergency medicine physician
NPI1174011530PAC ID0143626770
Medicare services, 2024
303
Medicare patients, 2024
298
Part D claims, 2024
162
Publications
2
Hospital affiliations
4
Practice address
2000 Mowry Ave, Fremont, CA 94538
Practice phone
Call (510) 797-1111
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Washington Health

Hospital · Fremont, California

See all 11 affiliations

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Patrick Hsu is an emergency medicine physician in Fremont, California

Patrick Hsu practices at Washington Health in Fremont, California, part of Washington Health.

Patrick Hsu's NPI, 1174011530, was assigned on May 1, 2018. Patrick Hsu graduated from Touro University California - Vallejo in 2018. Patrick Hsu holds Nevada license DO3040.

NPI and contact details
Medicare PAC ID
0143626770
NPI enumeration date
May 1, 2018
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(510) 797-1111
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
34
Medical school graduation
2018

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Patrick Hsu practices at Washington Health in Fremont, California

Patrick Hsu's primary practice is Washington Health, at 2000 Mowry Ave, Fremont, CA 94538 in Alameda County. The practice phone is (510) 797-1111.

  • Washington Health
    2000 Mowry Ave, Fremont, CA 94538 · Alameda CountyPhone(510) 797-1111

Source: Dmand AI Affiliation Data

Patrick Hsu is affiliated with 4 sites of care and 7 medical groups

Patrick Hsu's primary practice is Washington Health in Fremont, California, part of Washington Health. Patrick Hsu is also affiliated with Santa Clara Valley Medical Center. The medical group on file is Emergency Physicians Associates. Dmand AI also links Patrick Hsu to 2 more hospitals and 6 medical groups, each named with a free account.

See all 11 affiliations for Patrick Hsu

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Patrick Hsu's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Patrick Hsu practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Washington HealthAvailable with a free account
+3 more sites and 6 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Patrick Hsu is one of 7,423 emergency medicine physicians in California

Emergency medicine is Patrick Hsu's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Patrick Hsu is board certified in emergency medicine by the American Board of Emergency Medicine. Dmand AI has Patrick Hsu's licenses on file in 2 states: Nevada and California.

Specialties and state licenses

  • Emergency medicine, NevadaPrimaryLicense DO3040 · taxonomy 207P00000X
  • California licenseLicense 18749

Emergency medicine physicians near Patrick Hsu

Counts of emergency medicine physicians 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

Patrick Hsu billed Medicare for 303 services in 2024

CMS data shows 303 Medicare services from Patrick Hsu across 4 procedure codes in 2024, for 298 Medicare patients. Medicare paid $36,674 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024303
Medicare patients298
Paid by Medicare$36,674
Procedure codes4

Patrick Hsu's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 2082024: 30346%

Patrick Hsu compared with the California median for emergency medicine physicians, 2024

  • Patrick Hsu
  • California median
Medicare services
303vs 26514% above
Medicare patients
298vs 24323% above
Part D claims
71vs 6215% above

Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.

Patrick Hsu's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Patrick Hsu

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Patrick Hsu treated 298 Medicare patients in 2024, average age 73

CMS counts 298 Medicare patients who saw Patrick Hsu in 2024. The largest group is 65 to 74, with 110 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 32% are also on Medicaid. Their average risk score is 1.99, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Patrick Hsu's median patient age at 49, with 55% women.

Medicare patients, 2024298
Average age73
Average risk score1.99
Also on Medicaid32%

Patrick Hsu's Medicare patients by age, 2024

Patrick Hsu's Medicare patients by sex, 2024

  • Women16756%
  • Men13144%

Chronic conditions among Patrick Hsu's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis49%
  4. Diabetes48%
  5. Ischemic heart disease38%
  6. Chronic kidney disease35%
  7. Mood disorders34%
  8. Anxiety33%

Share of Medicare patients with each condition. A patient can have several.

Patrick 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 49

Patient panel by sex, all payers

  • Women55%
  • Men44%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Patrick Hsu wrote 162 Medicare Part D claims in 2024

In 2024, Patrick Hsu wrote 162 Medicare Part D claims for 119 patients. 94% of them were for generic drugs. CMS names the drug for 71 of them, across 5 drugs with 11 or more claims each, at $635 in total drug cost. In 2023, CMS named 45 claims across 3 drugs.

Part D claims, 2024162
Drugs named by CMS5
Total drug cost$635
Part D patients119

Patrick Hsu's Part D claims by kind of drug, 2024

  • Generic153 claims94%
  • Brand-name and other9 claims6%

Patrick Hsu's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Patrick Hsu's Part D claims, 2024

  • Antibiotics44%72 of 162 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 452024: 7158%

Drugs named by CMS: 5 in 2024, 3 in 2023.

See all prescribing by Patrick Hsu

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

How Patrick Hsu takes part in Medicare

Patrick Hsu accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Patrick Hsu has 2 publications on record

Dmand AI links 2 papers to Patrick Hsu in 2020. 2020 was the busiest year, with 2. Patrick Hsu has published most often in Cureus. Patrick Hsu's most frequent co-authors are Eric J. Kalivoda, MD and Matthew Bryce McClure, BA, BS, MD.

Papers2

Patrick Hsu's most frequent co-authors

Recent publications by Patrick Hsu

See all 2 publications and co-authors

See who Patrick Hsu researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Patrick Hsu works with, so you can find a warm path to the right emergency medicine physicians.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Patrick Hsu received $165 in industry payments from 2023 to 2025

CMS Open Payments shows 6 general payments to Patrick Hsu from 3 drug and device companies from 2023 to 2025. Food and beverage make up the largest share, 100% of the total. Integra LifeSciences Corporation paid the most, $92.

General payments to Patrick Hsu by program year, 2023 to 2025

Companies that paid Patrick Hsu the most, 2023 to 2025

Share is of all general payments to this clinician.

See all payments to Patrick Hsu

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Patrick Hsu graduated from Touro University California - Vallejo

Patrick Hsu graduated from Touro University California - Vallejo in 2018.

  1. Medical schoolTouro University California - Vallejo
  2. Board certified in emergency medicineAmerican Board of Emergency Medicine
  3. Board certified in 2021 - 2026CA State License
  4. Board certified in 2020 - 2026FL State License
  5. Board certified in 2021 - 2025NV State License
  6. Board certified in 2022 - 2025TX State License

Source: Dmand AI Professional Profile Data

Patrick Hsu accepts plans from 3 insurance carriers

Patrick Hsu is in network with 3 carriers, including CMS Medicare, GA State Medicaid and NV State Medicaid. Medicaid plans come from the most carriers, 2. Check the plan with the practice before a visit.

  • CMS Medicare
  • GA State Medicaid
  • NV State Medicaid

Plan types Patrick Hsu accepts, by number of carriers

  1. Medicaid2
  2. Medicare1

Source: Dmand AI Insurance Network Data

Sources for Patrick Hsu's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Patrick 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 Patrick Hsu's NPI number?

Patrick Hsu's NPI number is 1174011530. It was assigned on May 1, 2018, and it is active in the NPI Registry.

What does Patrick Hsu specialize in?

Patrick Hsu is an emergency medicine physician in Fremont, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).

Where does Patrick Hsu practice?

Patrick Hsu practices at 2000 Mowry Ave, Fremont, CA 94538. Patrick Hsu's primary practice is Washington Health in Fremont, California, part of Washington Health. Dmand AI also links Patrick Hsu to 2 hospitals and 6 medical groups.

What is Patrick Hsu's office phone number?

The practice phone on file for Patrick Hsu is (510) 797-1111.

What is Patrick Hsu's medical license number?

Patrick Hsu holds Nevada license DO3040, one of the licenses on file in 2 states.

Which states has Patrick Hsu been licensed in?

Dmand AI has state licenses on file for Patrick Hsu in Nevada and California.

Which hospitals is Patrick Hsu affiliated with?

Patrick Hsu practices at Washington Health in Fremont, California. Patrick Hsu is also affiliated with Santa Clara Valley Medical Center. Dmand AI links Patrick Hsu to 2 more hospitals.

What medical group is Patrick Hsu part of?

Patrick Hsu is linked to Emergency Physicians Associates. Dmand AI links Patrick Hsu to 6 more medical groups.

Does Patrick Hsu accept Medicare?

Yes. CMS data shows Patrick Hsu billed Medicare for 303 services in 2024, and Patrick Hsu accepts Medicare assignment.

How many Medicare patients does Patrick Hsu see?

CMS counts 298 Medicare patients who saw Patrick Hsu in 2024, with an average age of 73.

Show 9 more questionsShow fewer questions

Is Patrick Hsu board certified?

Yes. Patrick Hsu is board certified in emergency medicine by the American Board of Emergency Medicine.

What services does Patrick Hsu bill to Medicare?

In 2024, Patrick Hsu's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and critical care (99291).

Where did Patrick Hsu go to medical school?

Patrick Hsu graduated from Touro University California - Vallejo in 2018.

What drugs does Patrick Hsu prescribe most?

In 2024 Medicare Part D data, Patrick Hsu's most prescribed drugs by claims were Cephalexin, Ondansetron ODT and Amoxicillin-Clavulanate Potass.

Has Patrick Hsu received payments from drug or device companies?

CMS Open Payments shows $165 in general payments to Patrick Hsu from 3 companies from 2023 to 2025. The largest total came from Integra LifeSciences Corporation.

How long has Patrick Hsu been practicing?

Patrick Hsu graduated from medical school in 2018, 8 years ago.

Does Patrick Hsu do research?

Dmand AI links 2 publications to Patrick Hsu.

Who does Patrick Hsu publish with?

Patrick Hsu's most frequent co-authors are Eric J. Kalivoda, MD (2 shared papers) and Matthew Bryce McClure, BA, BS, MD (1 shared paper).

What insurance does Patrick Hsu accept?

Patrick Hsu is in network with 3 carriers, including CMS Medicare, GA State Medicaid and NV State Medicaid. Medicaid plans come from the most carriers, 2. Check the plan with the practice before a visit.

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