Dr. Ekai K. Hsu, MD
- Medicare services, 2024
- 162
- Medicare patients, 2024
- 91
- Part D claims, 2019
- 11
- Hospital affiliations
- 3
- Industry payments
- $924
- Practice address
- 2105 Forest Avenue, San Jose, CA 95128
- Practice phone
- Call (408) 947-2831
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
O'Connor Hospital
Skilled Nursing Facility - Hospital-Based · San Jose, California
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. Ekai K. Hsu is a general surgeon in San Jose, California
Dr. Hsu practices at O'Connor Hospital in San Jose, California.
Dr. Hsu's NPI, 1912175340, was assigned on February 19, 2008. Dr. Hsu graduated from Tufts University School Of Medicine in 2003. Dr. Hsu's California license number on file is A103079.
- NPI
- 1912175340NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3971663584
- NPI enumeration date
- February 19, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (408) 947-2831
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ekai K. Hsu practices at O'Connor Hospital in San Jose, California
Dr. Hsu's primary practice is O'Connor Hospital, at 2105 Forest Avenue, San Jose, CA 95128 in Santa Clara County. The practice phone is (408) 947-2831.
- O'Connor Hospital2105 Forest Avenue, San Jose, CA 95128 · Santa Clara CountyPhone(408) 947-2831
Source: Dmand AI Affiliation Data
Dr. Ekai K. Hsu is affiliated with 5 sites of care and 6 medical groups
Dr. Hsu's primary practice is O'Connor Hospital in San Jose, California. Dr. Hsu is also affiliated with Santa Clara Valley Medical Center. The medical group on file is Palo Alto Foundation Medical Group. Dmand AI also links Dr. Hsu to 2 more hospitals, 5 medical groups and 1 physician office, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ekai K. Hsu's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hsu practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| O'Connor Hospital | Available with a free account |
| +4 more sites and 5 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ekai K. Hsu is one of 2,926 general surgeons in California
Surgery is Dr. Hsu's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Hsu is board certified in surgery by the American Board of Surgery. Dmand AI has Dr. Hsu's licenses on file in 3 states: California, Colorado and Florida.
Specialties and state licenses
- Surgery, CaliforniaPrimary
- Colorado license
- Florida license
Clinical focus
Dmand AI lists abdominal adhesion surgery, colon removal and gallbladder removal among the conditions Dr. Hsu treats.
General surgeons near Dr. Hsu
Counts of general surgeons 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. Ekai K. Hsu billed Medicare for 162 services in 2024
CMS data shows 162 Medicare services from Dr. Hsu across 5 procedure codes in 2024, for 91 Medicare patients. Medicare paid $12,530 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Hsu's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2432024: 16233%
Dr. Hsu compared with the California median for general surgeons, 2024
- Dr. Hsu
- California median
- Medicare services
- 162vs 166Close to median
- Medicare patients
- 91vs 12125% below
- Part D claims
- 11vs 3468% below
Medians across 2,606 general surgeons in California with Dmand AI profiles that report each measure.
Dr. 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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Hsu and other general surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ekai K. Hsu treated 91 Medicare patients in 2024, average age 73
CMS counts 91 Medicare patients who saw Dr. Hsu in 2024. The largest group is 65 to 74, with 41 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 57% are also on Medicaid. Their average risk score is 2.12, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Hsu's median patient age at 66, with 53% women.
Dr. Hsu's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Hsu's Medicare patients by sex, 2024
- Women4752%
- Men4448%
Chronic conditions among Dr. Hsu's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes53%
- Mood disorders41%
- Arthritis38%
- Ischemic heart disease36%
- Depression35%
- Chronic kidney disease34%
Share of Medicare patients with each condition. A patient can have several.
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 66
Patient panel by sex, all payers
- Women53%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ekai K. Hsu wrote 11 Medicare Part D claims in 2019
In 2019, Dr. Hsu wrote 11 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $75 in total drug cost. In 2018, CMS named 16 claims across 1 drug.
Dr. Hsu's most prescribed drugs by claims, 2019
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2018 to 2019
- 2018
- 2019
- Claims for drugs CMS names
- 2018: 162019: 1131%
Drugs named by CMS: 1 in 2019, 1 in 2018.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
How Dr. Ekai K. Hsu takes part in Medicare
Dr. Hsu accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Ekai K. Hsu received $924 in industry payments from 2016 to 2023
CMS Open Payments shows 23 general payments to Dr. Hsu from 13 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 100% of the total. TissueTech, Inc. paid the most, $678.
General payments to Dr. Hsu by program year, 2016 to 2023
Companies that paid Dr. Hsu the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Ekai K. Hsu graduated from Tufts University School Of Medicine
Dr. Hsu graduated from Tufts University School Of Medicine in 2003.
- Medical school
- Board certified in surgery
Source: Dmand AI Professional Profile Data
Dr. Ekai K. Hsu accepts plans from 7 insurance carriers
Dr. Hsu is in network with 7 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- CMS Medicare
- Molina
Plan types Dr. Hsu accepts, by number of carriers
- Medicare7
- PPO5
- HMO2
- POS2
- EPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Ekai K. 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| 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 Dr. Ekai K. 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. Ekai K. Hsu's NPI number?
Dr. Ekai K. Hsu's NPI number is 1912175340. It was assigned on February 19, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Ekai K. Hsu?
Dr. Ekai K. Hsu is a general surgeon in San Jose, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Ekai K. Hsu practice?
Dr. Hsu practices at 2105 Forest Avenue, San Jose, CA 95128. Dr. Hsu's primary practice is O'Connor Hospital in San Jose, California. Dmand AI also links Dr. Hsu to 2 hospitals, 5 medical groups and 1 physician office.
What is Dr. Ekai K. Hsu's office phone number?
The practice phone on file for Dr. Hsu is (408) 947-2831.
What is Dr. Ekai K. Hsu's medical license number?
Dr. Hsu's California license number on file is A103079, one of the licenses on file in 3 states.
Which states has Dr. Ekai K. Hsu been licensed in?
Dmand AI has state licenses on file for Dr. Hsu in California (2008 to 2025), Colorado (2024 to 2027) and Florida (2021 to 2026).
Which hospitals is Dr. Ekai K. Hsu affiliated with?
Dr. Hsu is affiliated with Santa Clara Valley Medical Center. Dmand AI links Dr. Hsu to 2 more hospitals.
What medical group is Dr. Ekai K. Hsu part of?
Dr. Hsu is linked to Palo Alto Foundation Medical Group. Dmand AI links Dr. Hsu to 5 more medical groups.
Does Dr. Ekai K. Hsu accept Medicare?
Yes. CMS data shows Dr. Hsu billed Medicare for 162 services in 2024, and Dr. Hsu accepts Medicare assignment.
How many Medicare patients does Dr. Ekai K. Hsu see?
CMS counts 91 Medicare patients who saw Dr. Hsu in 2024, with an average age of 73.
Show 7 more questionsShow fewer questions
Is Dr. Ekai K. Hsu board certified?
Yes. Dr. Hsu is board certified in surgery by the American Board of Surgery.
What services does Dr. Ekai K. Hsu bill to Medicare?
In 2024, Dr. Hsu's most billed Medicare services were hospital inpatient care (99231), hospital inpatient care (99232) and hospital inpatient care (99222).
Where did Dr. Ekai K. Hsu go to medical school?
Dr. Hsu graduated from Tufts University School Of Medicine in 2003.
What drugs does Dr. Ekai K. Hsu prescribe most?
In 2019 Medicare Part D data, Dr. Hsu's most prescribed drugs by claims were Ibuprofen.
Has Dr. Ekai K. Hsu received payments from drug or device companies?
CMS Open Payments shows $924 in general payments to Dr. Hsu from 13 companies from 2016 to 2023. The largest total came from TissueTech, Inc.
How long has Dr. Ekai K. Hsu been practicing?
Dr. Hsu graduated from medical school in 2003, 23 years ago.
What insurance does Dr. Ekai K. Hsu accept?
Dr. Hsu is in network with 7 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
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