J Neuroophthalmol
Optic ChiasmPituitary ApoplexyPituitary Neoplasms
Homer Hua Chiang
NPI1700310265PAC ID4880971175
- Medicare services, 2022
- 48
- Part D claims, 2024
- 1,501
- Publications
- 27
- Hospital affiliations
- 1
- Industry payments
- $233
- Practice address
- 710 Lawrence Expy, Santa Clara, CA 95051
- Practice phone
- Call (408) 851-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Permanente Medical Group Inc
Santa Clara, California
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Homer Hua Chiang is an ophthalmologist in Santa Clara, California
Homer Chiang practices at Permanente Medical Group Inc in Santa Clara, California.
Homer Chiang's NPI, 1700310265, was assigned on April 11, 2017. Homer Chiang graduated from The Robert Larner, M.D. College of Medicine in 2017. Homer Chiang holds California license A171994.
NPI and contact details
- NPI
- 1700310265NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4880971175
- NPI enumeration date
- April 11, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (408) 851-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Homer Hua Chiang practices at Permanente Medical Group Inc in Santa Clara, California
Homer Chiang's primary practice is Permanente Medical Group Inc, at 710 Lawrence Expy, Santa Clara, CA 95051 in Santa Clara County. The practice phone is (408) 851-1000.
- Permanente Medical Group Inc710 Lawrence Expy, Santa Clara, CA 95051 · Santa Clara CountyPhone(408) 851-1000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Homer Hua Chiang is affiliated with 2 sites of care and 1 medical group
Homer Chiang's primary practice is Permanente Medical Group Inc in Santa Clara, California. Homer Chiang is also affiliated with Santa Clara Medical Center. The medical group on file is The Permanente Medical Group, Inc.
Permanente Medical Group IncPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Homer Hua Chiang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Homer Chiang practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Permanente Medical Group Inc | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Homer Hua Chiang is one of 2,621 ophthalmologists in California
Ophthalmology is Homer Chiang's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Homer Chiang is board certified in ophthalmology by the American Board of Ophthalmology. Dmand AI has Homer Chiang's licenses on file in 2 states: California and Texas.
Specialties and state licenses
- Ophthalmology, CaliforniaPrimary
- Texas license
Ophthalmologists near Homer Chiang
Counts of ophthalmologists 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
Homer Hua Chiang billed Medicare for 48 services in 2022
CMS data shows 48 Medicare services from Homer Chiang across 2 procedure codes in 2022. Medicare paid $891 for them. Every service was in an office.
Medicare services, 202248
Paid by Medicare$891
Procedure codes2
Homer Chiang's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Tests and treatments
- 2021: 322022: 4850%
- Office and hospital visits
- 2021: 162022: 0100%
Homer Chiang compared with the California median for ophthalmologists, 2022
- Homer Chiang
- California median
- Medicare services
- 48vs 1,07996% below
- Part D claims
- 1,405vs 6182.3 times
Medians across 2,568 ophthalmologists in California with Dmand AI profiles that report each measure.
Homer Chiang's most billed Medicare procedure codes, 2022
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 Homer Chiang and other ophthalmologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Homer Hua Chiang's patients have a median age of 69
Across all payers, Dmand AI patient panel data puts Homer Chiang's median patient age at 69, with 65% women.
Homer Chiang's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women65%
- Men35%
Source: Dmand AI Patient Panel Data
Homer Hua Chiang wrote 1,501 Medicare Part D claims in 2024
In 2024, Homer Chiang wrote 1,501 Medicare Part D claims for 416 patients. 74% of them were for generic drugs. CMS names the drug for 1,405 of them, across 14 drugs with 11 or more claims each, at $44,896 in total drug cost. In 2023, CMS named 1,104 claims across 12 drugs.
Part D claims, 20241,501
Drugs named by CMS14
Total drug cost$44,896
Part D patients416
Homer Chiang's Part D claims by kind of drug, 2024
- Generic1,116 claims74%
- Brand-name385 claims26%
Homer Chiang'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: 1,1042024: 1,40527%
Drugs named by CMS: 14 in 2024, 12 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 Homer Hua Chiang takes part in Medicare
Homer Chiang accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Cataract surgery: 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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Homer Hua Chiang has 27 publications on record
Dmand AI links 27 papers to Homer Chiang, published from 2011 to 2023. 2013 was the busiest year, with 6. The most frequent topics are Cornea, Rats, Sprague-Dawley and Anesthetics, Local. Homer Chiang has published most often in Cornea. Homer Chiang's most frequent co-authors are James Chodosh, MD, MPH, Albert Hyukjae Kwon, MD and Vishakha Sabharwal, MD.
Papers27
Years published2011 to 2023
Homer Chiang's papers by year, 2011 to 2023
Topics Homer Chiang writes about most
- Cornea
- Rats, Sprague-Dawley
- Anesthetics, Local
- Corneal Transplantation
- Mice, Inbred C57BL
- NIH 3T3 Cells
- Cell Line
- Corneal Keratocytes
Homer Chiang's most frequent co-authors
- James Chodosh, MD, MPH2 shared papers
- Albert Hyukjae Kwon, MD2 shared papers
- Vishakha Sabharwal, MD2 shared papers
Recent publications by Homer Chiang
J Neuroophthalmol
Abducens NerveAbducens Nerve DiseasesBone Marrow
Digit J Ophthalmol
Brain StemCavernous SinusDiagnosis, Differential
AdhesivesBiocompatible MaterialsBiomechanical Phenomena
See who Homer Chiang researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Homer Chiang works with, so you can find a warm path to the right ophthalmologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Homer Hua Chiang received $233 in industry payments from 2021 to 2022
CMS Open Payments shows 7 general payments to Homer Chiang from 2 drug and device companies from 2021 to 2022. Food and beverage make up the largest share, 100% of the total. Alcon Laboratories Inc paid the most, $222.
General payments to Homer Chiang by program year, 2021 to 2022
Companies that paid Homer Chiang the most, 2021 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Homer Hua Chiang has 4 awards and honors on record
Dmand AI lists 4 awards for Homer Chiang, most recently Housestaff Council President in 2020.
Awards and honors for Homer Chiang
- 2020
- Housestaff Council President
- 2018
- Outstanding Intern
- 2017
- Fundraiser of the Year
- Volunteer of the Year
Source: Dmand AI Professional Profile Data
Homer Hua Chiang graduated from The Robert Larner, M.D. College of Medicine
Homer Chiang graduated from The Robert Larner, M.D. College of Medicine in 2017. Homer Chiang is a member of American Academy of Ophthalmology and The Association for Research in Vision and Ophthalmology.
- Medical school
- Board certified in ophthalmology
Source: Dmand AI Professional Profile Data
Homer Hua Chiang accepts plans from 2 insurance carriers
Homer Chiang is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Homer Chiang accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Homer Hua Chiang'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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 Data |
| 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)Doctors and Clinicians Utilization Data (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) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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 Homer Hua Chiang
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Homer Hua Chiang's NPI number?
Homer Hua Chiang's NPI number is 1700310265. It was assigned on April 11, 2017, and it is active in the NPI Registry.
What does Homer Hua Chiang specialize in?
Homer Hua Chiang is an ophthalmologist in Santa Clara, California. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Homer Hua Chiang practice?
Homer Chiang practices at 710 Lawrence Expy, Santa Clara, CA 95051. Homer Chiang's primary practice is Permanente Medical Group Inc in Santa Clara, California.
What is Homer Hua Chiang's office phone number?
The practice phone on file for Homer Chiang is (408) 851-1000.
What is Homer Hua Chiang's medical license number?
Homer Chiang holds California license A171994, one of the licenses on file in 2 states.
Which states has Homer Hua Chiang been licensed in?
Dmand AI has state licenses on file for Homer Chiang in California (2021 to 2027) and Texas (2017 to 2021).
Which hospitals is Homer Hua Chiang affiliated with?
Homer Chiang is affiliated with Santa Clara Medical Center.
What medical group is Homer Hua Chiang part of?
Homer Chiang is linked to The Permanente Medical Group, Inc.
Does Homer Hua Chiang accept Medicare?
Yes. CMS data shows Homer Chiang billed Medicare for 48 services in 2022, and Homer Chiang accepts Medicare assignment.
Is Homer Hua Chiang board certified?
Yes. Homer Chiang is board certified in ophthalmology by the American Board of Ophthalmology.
Show 8 more questionsShow fewer questions
What services does Homer Hua Chiang bill to Medicare?
In 2022, Homer Chiang's most billed Medicare services were eye exam or test (92133) and eye exam or test (92134).
Where did Homer Hua Chiang go to medical school?
Homer Chiang graduated from The Robert Larner, M.D. College of Medicine in 2017.
What drugs does Homer Hua Chiang prescribe most?
In 2024 Medicare Part D data, Homer Chiang's most prescribed drugs by claims were Prednisolone Acetate, Moxifloxacin and Diclofenac Sodium.
Has Homer Hua Chiang received payments from drug or device companies?
CMS Open Payments shows $233 in general payments to Homer Chiang from 2 companies from 2021 to 2022. The largest total came from Alcon Laboratories Inc.
How long has Homer Hua Chiang been practicing?
Homer Chiang graduated from medical school in 2017, 9 years ago.
Does Homer Hua Chiang do research?
Dmand AI links 27 publications to Homer Chiang, published from 2011 to 2023.
Who does Homer Hua Chiang publish with?
Homer Chiang's most frequent co-authors are James Chodosh, MD, MPH (2 shared papers), Albert Hyukjae Kwon, MD (2 shared papers) and Vishakha Sabharwal, MD (2 shared papers).
What insurance does Homer Hua Chiang accept?
Homer Chiang is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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