Dr. I-Chow Joe Hsu, MD

  • San Francisco, CA
  • Radiation oncologist
NPI1144263039PAC ID3375627995
Medicare services, 2024
900
Medicare patients, 2024
145
Part D claims, 2024
60
Publications
103
Clinical trials
5
Practice address
505 Parnassus Ave, Box 0296, San Francisco, CA 94143
Practice phone
Call (415) 353-2733
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

UCSF Helen Diller Medical Center at Parnassus Heights

Hospital · San Francisco, California

See all 6 affiliations

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Dr. I-Chow Joe Hsu is a radiation oncologist in San Francisco, California

Dr. Hsu practices at UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California, part of University of California Health.

Dr. Hsu's NPI, 1144263039, was assigned on June 14, 2006. Dr. Hsu graduated from The Johns Hopkins University School of Medicine in 1991. Dr. Hsu holds California license A51033.

NPI and contact details
Medicare PAC ID
3375627995
NPI enumeration date
June 14, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(415) 353-2733
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Male
Estimated age
61
Medical school graduation
1991

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

Dr. I-Chow Joe Hsu practices at UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California

Dr. Hsu's primary practice is UCSF Helen Diller Medical Center at Parnassus Heights, at 505 Parnassus Ave, Box 0296, San Francisco, CA 94143 in San Francisco County. The practice phone is (415) 353-2733.

Source: Dmand AI Affiliation Data

Dr. I-Chow Joe Hsu is affiliated with 3 sites of care and 3 medical groups

Dr. Hsu's primary practice is UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California, part of University of California Health. The medical group on file is UCSF Pediatrics. Dmand AI also links Dr. Hsu to 2 more group practices and clinics and 2 medical groups, each named with a free account.

See all 6 affiliations for Dr. Hsu

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

Dmand AI tracks the EHR system at Dr. I-Chow Joe Hsu's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hsu practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
UCSF Helen Diller Medical Center at Parnassus HeightsAvailable with a free account
+2 more sites and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. I-Chow Joe Hsu is one of 685 radiation oncologists in California

Radiation oncology is Dr. Hsu's primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dr. Hsu is board certified in radiation oncology by the American Board of Radiology. Dr. Hsu is licensed in California.

Specialties and state licenses

  • Radiation oncology, CaliforniaPrimaryLicense A51033 · 1992 to 2026 · taxonomy 2085R0001X

Clinical focus

Dmand AI lists cervical cancer radiation, prostate cancer radiation and uterine cancer radiation among the conditions Dr. Hsu treats.

Radiation oncologists near Dr. Hsu

Counts of radiation oncologists 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. I-Chow Joe Hsu billed Medicare for 900 services in 2024

CMS data shows 900 Medicare services from Dr. Hsu across 18 procedure codes in 2024, for 145 Medicare patients. Medicare paid $158,847 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024900
Medicare patients145
Paid by Medicare$158,847
Procedure codes18

Dr. Hsu's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Imaging
2023: 4762024: 61529%
Surgery
2023: 1572024: 157No change
Office and hospital visits
2023: 1602024: 12820%

Dr. Hsu compared with the California median for radiation oncologists, 2024

  • Dr. Hsu
  • California median
Medicare services
900vs 1,44438% below
Medicare patients
145vs 16412% below
Part D claims
43vs 3234% above

Medians across 633 radiation oncologists 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.

See all procedures by Dr. Hsu

Need commercial claims for Dr. Hsu?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Hsu and other radiation oncologists in California.

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

Dr. I-Chow Joe Hsu treated 145 Medicare patients in 2024, average age 74

CMS counts 145 Medicare patients who saw Dr. Hsu in 2024. The largest group is 75 to 84, with 66 patients. 75% of them have cancer, and 75% have high cholesterol. 18% are also on Medicaid. Their average risk score is 1.35, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Hsu's median patient age at 74, with 25% women.

Medicare patients, 2024145
Average age74
Average risk score1.35
Also on Medicaid18%

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

  • Women4330%
  • Men10270%

Chronic conditions among Dr. Hsu's Medicare patients, 2024

  1. Cancer75%
  2. High cholesterol75%
  3. High blood pressure71%
  4. Arthritis30%
  5. Ischemic heart disease28%
  6. Diabetes23%
  7. Anxiety20%
  8. Atrial fibrillation19%

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 74

Patient panel by sex, all payers

  • Women25%
  • Men75%

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

Dr. I-Chow Joe Hsu wrote 60 Medicare Part D claims in 2024

In 2024, Dr. Hsu wrote 60 Medicare Part D claims for 27 patients. 97% of them were for generic drugs. CMS names the drug for 43 of them, across 1 drug with 11 or more claims each, at $561 in total drug cost. In 2023, CMS named 50 claims across 1 drug.

Part D claims, 202460
Drugs named by CMS1
Total drug cost$561
Part D patients27

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

  • Generic58 claims97%
  • Brand-name and other2 claims3%

Dr. 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.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 502024: 4314%

Drugs named by CMS: 1 in 2024, 1 in 2023.

See all prescribing by Dr. 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

Dr. I-Chow Joe Hsu scored 87 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 87 out of 100 for Dr. Hsu for performance year 2024, reported as part of a group. Dr. Hsu accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Hsu as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Hsu's MIPS scores, performance year 2024

  • 87of 100Final score
  • 86.8of 100Quality
  • 40of 100Improvement Activities
  • 70of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. I-Chow Joe Hsu has 103 publications on record

Dmand AI links 103 papers to Dr. Hsu, published from 2005 to 2025. 2018 was the busiest year, with 7. The most frequent topics are Brachytherapy, Prostatic Neoplasms and Radiotherapy Dosage. Dr. Hsu has published most often in Brachytherapy. Dr. Hsu's most frequent co-authors are Mack Roach, MD, Albert Jeh-Seng Chang, MD and Lee-May Chen, MD.

Papers103
Years published2005 to 2025

Dr. Hsu's papers by year, 2016 to 2025

Topics Dr. Hsu writes about most

  • Brachytherapy
  • Prostatic Neoplasms
  • Radiotherapy Dosage
  • Radiotherapy Planning, Computer-Assisted
  • Algorithms
  • Prostate-Specific Antigen
  • Uterine Cervical Neoplasms
  • Tomography, X-Ray Computed

Dr. Hsu's most frequent co-authors

Recent publications by Dr. Hsu

See all 103 publications and co-authors

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 radiation oncologists.

How network discovery works

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

Dr. I-Chow Joe Hsu has worked on 5 clinical trials

Dmand AI links Dr. Hsu to 5 clinical trials. 2 are still active or recruiting. Conditions studied include Prostatic Neoplasms, Prostatic Diseases and Salivary Gland Adenoma, Pleomorphic. Radiation Therapy Oncology Group sponsors the most, 2.

Clinical trials with Dr. Hsu by phase

  1. NonePhase 1: no trials
  2. 1Phase 1/2: 1 trial
  3. 1Phase 2: 1 trial
  4. 1Phase 3: 1 trial
  5. NonePhase 4: no trials

Conditions in Dr. Hsu's trials

  • Prostatic Neoplasms
  • Prostatic Diseases
  • Salivary Gland Adenoma, Pleomorphic
  • Uterine Cervical Neoplasms

Investigators on the most trials with Dr. Hsu

Recent clinical trials with Dr. Hsu

Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)

Dr. I-Chow Joe Hsu received $15,083 in industry payments from 2016 to 2024

CMS Open Payments shows 12 general payments to Dr. Hsu from 3 drug and device companies from 2016 to 2024. Consulting fees make up the largest share, 80% of the total. Boston Scientific Corporation paid the most, $12,250.

General payments to Dr. Hsu by program year, 2016 to 2024

General payments to Dr. Hsu by kind, 2016 to 2024

$15.1Kin total
  • Consulting fees$12,08080%
  • Honoraria$1,50010%
  • Travel and lodging$7815%
  • Food and beverage$7225%

Companies that paid Dr. Hsu the most, 2016 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Hsu

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

Dr. I-Chow Joe Hsu has 1 award and honors on record

Dmand AI lists 1 award for Dr. Hsu, most recently Regional Top Doctor in 2014.

Awards and honors for Dr. Hsu

  1. 2014
    • Regional Top Doctor

Source: Dmand AI Professional Profile Data

Dr. I-Chow Joe Hsu graduated from The Johns Hopkins University School of Medicine

Dr. Hsu graduated from The Johns Hopkins University School of Medicine in 1991.

  1. Medical schoolThe Johns Hopkins University School of Medicine
  2. Board certified in radiation oncologyAmerican Board of Radiology

Source: Dmand AI Professional Profile Data

Dr. I-Chow Joe Hsu accepts plans from 9 insurance carriers

Dr. Hsu is in network with 9 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Blue Cross and Blue Shield of Kansas City
  • CMS Medicare
  • Elevance
  • +1 more carriersWith a free account

Plan types Dr. Hsu accepts, by number of carriers

  1. Medicare7
  2. HMO4
  3. PPO4
  4. POS3
  5. EPO2
  6. Medicaid1

Source: Dmand AI Insurance Network Data

Sources for Dr. I-Chow Joe 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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
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 Dr. I-Chow Joe 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. I-Chow Joe Hsu's NPI number?

Dr. I-Chow Joe Hsu's NPI number is 1144263039. It was assigned on June 14, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. I-Chow Joe Hsu?

Dr. I-Chow Joe Hsu is a radiation oncologist in San Francisco, California. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).

Where does Dr. I-Chow Joe Hsu practice?

Dr. Hsu practices at 505 Parnassus Ave, Box 0296, San Francisco, CA 94143. Dr. Hsu's primary practice is UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California, part of University of California Health. Dmand AI also links Dr. Hsu to 2 group practices and clinics and 2 medical groups.

What is Dr. I-Chow Joe Hsu's office phone number?

The practice phone on file for Dr. Hsu is (415) 353-2733.

What is Dr. I-Chow Joe Hsu's medical license number?

Dr. Hsu holds California license A51033.

Which hospitals is Dr. I-Chow Joe Hsu affiliated with?

Dr. Hsu practices at UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California.

What medical group is Dr. I-Chow Joe Hsu part of?

Dr. Hsu is linked to UCSF Pediatrics. Dmand AI links Dr. Hsu to 2 more medical groups.

Does Dr. I-Chow Joe Hsu accept Medicare?

Yes. CMS data shows Dr. Hsu billed Medicare for 900 services in 2024, and Dr. Hsu accepts Medicare assignment.

Does Dr. I-Chow Joe Hsu offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Hsu as offering telehealth services.

What is Dr. I-Chow Joe Hsu's MIPS score?

Dr. Hsu's MIPS final score for performance year 2024 is 87 out of 100, reported as part of a group.

Show 10 more questionsShow fewer questions

How many Medicare patients does Dr. I-Chow Joe Hsu see?

CMS counts 145 Medicare patients who saw Dr. Hsu in 2024, with an average age of 74.

Is Dr. I-Chow Joe Hsu board certified?

Yes. Dr. Hsu is board certified in radiation oncology by the American Board of Radiology.

What services does Dr. I-Chow Joe Hsu bill to Medicare?

In 2024, Dr. Hsu's most billed Medicare services were radiation oncology (77290), radiation oncology (77295) and radiation oncology (77771).

Where did Dr. I-Chow Joe Hsu go to medical school?

Dr. Hsu graduated from The Johns Hopkins University School of Medicine in 1991.

What drugs does Dr. I-Chow Joe Hsu prescribe most?

In 2024 Medicare Part D data, Dr. Hsu's most prescribed drugs by claims were Tamsulosin HCl.

Has Dr. I-Chow Joe Hsu received payments from drug or device companies?

CMS Open Payments shows $15,083 in general payments to Dr. Hsu from 3 companies from 2016 to 2024. The largest total came from Boston Scientific Corporation.

How long has Dr. I-Chow Joe Hsu been practicing?

Dr. Hsu graduated from medical school in 1991, 35 years ago.

Does Dr. I-Chow Joe Hsu do research?

Dmand AI links 103 publications to Dr. Hsu, published from 2005 to 2025. Dr. Hsu has worked on 5 clinical trials.

Who does Dr. I-Chow Joe Hsu publish with?

Dr. Hsu's most frequent co-authors are Mack Roach, MD (27 shared papers), Albert Jeh-Seng Chang, MD (10 shared papers) and Lee-May Chen, MD (10 shared papers).

What insurance does Dr. I-Chow Joe Hsu accept?

Dr. Hsu is in network with 9 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

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