Patrick Hsu
- 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
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Patrick 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.
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
- 1174011530NPI Registry (opens in a new tab)
- 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
- Get email
- Mobile number
- Get number
- 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 Health2000 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.
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.
| Site | EHR vendor and product |
|---|---|
| Washington Health | Available with a free account |
| +3 more sites and 6 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Washington Health and 6.2K+ hospitals, with verified contacts in the same login.
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, NevadaPrimary
- California license
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.
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.
Need commercial claims for Patrick Hsu?
Medicare shows one payer. Book a meeting to get commercial claims data for Patrick Hsu and other emergency medicine physicians in California.
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.
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
- High blood pressure75%
- High cholesterol75%
- Arthritis49%
- Diabetes48%
- Ischemic heart disease38%
- Chronic kidney disease35%
- Mood disorders34%
- 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.
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.
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.
Patrick Hsu's most frequent co-authors
Recent publications by Patrick Hsu
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.
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.
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.
- Medical school
- Board certified in emergency medicine
- Board certified in 2021 - 2026
- Board certified in 2020 - 2026
- Board certified in 2021 - 2025
- Board certified in 2022 - 2025
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
- Medicaid2
- Medicare1
Source: Dmand AI Insurance Network Data
Sources for Patrick 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 services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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 percentiles | Doctors and Clinicians National Downloadable File (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 |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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 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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