Matt Hung Siu, OD
- Medicare patients, 2024
- 106
- Part D claims, 2024
- 30
- Industry payments
- $112
- Affiliated sites
- 2
- Medical groups
- 2
- Practice address
- 7075 Redwood Blvd Suite F Suite F, Novato, CA 94945-4136
- Practice phone
- Call (415) 897-2997
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Eyewish Optometry
Eye care practice · Novato, California
Find Matt Siu'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.
Matt Hung Siu is an optometrist in Novato, California
Matt Siu practices at Eyewish Optometry in Novato, California.
Matt Siu's NPI, 1255783106, was assigned on July 4, 2016. Matt Siu graduated from State University of New York - State College Optometry in 2016. Matt Siu holds California license 34420TLG.
- NPI
- 1255783106NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5799052494
- NPI enumeration date
- July 4, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (415) 897-2997
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Matt Hung Siu practices at Eyewish Optometry in Novato, California
Matt Siu's primary practice is Eyewish Optometry, at 7075 Redwood Blvd Suite F Suite F, Novato, CA 94945-4136. The practice phone is (415) 897-2997.
- Eyewish Optometry7075 Redwood Blvd Suite F Suite F, Novato, CA 94945-4136Phone(415) 897-2997
Source: Dmand AI Affiliation Data
Matt Hung Siu is affiliated with 2 sites of care and 2 medical groups
Matt Siu's primary practice is Eyewish Optometry in Novato, California. Dmand AI also links Matt Siu to 2 medical groups and 1 group practice or clinic, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Matt Hung Siu's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Matt Siu practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Eyewish Optometry | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Matt Hung Siu is one of 7,206 optometrists in California
Optometrist is Matt Siu's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Dmand AI has Matt Siu's licenses on file in 2 states: California and Maryland.
Specialties and state licenses
- Optometrist, CaliforniaPrimary
- Maryland license
Optometrists near Matt Siu
Counts of optometrists 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
Matt Hung Siu treated 106 Medicare patients in 2024, average age 75
CMS counts 106 Medicare patients who saw Matt Siu in 2024. The largest group is 65 to 74, with 57 patients. 73% of them have high cholesterol, and 59% have high blood pressure. Their average risk score is 0.87, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Matt Siu's median patient age at 74, with 59% women.
Matt Siu's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Matt Siu's Medicare patients by sex, 2024
- Women6561%
- Men4139%
Chronic conditions among Matt Siu's Medicare patients, 2024
- High cholesterol73%
- High blood pressure59%
- Arthritis46%
- Osteoporosis19%
- Anxiety15%
- Cancer13%
- Diabetes13%
- Ischemic heart disease12%
Share of Medicare patients with each condition. A patient can have several.
Matt Siu'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
- Women59%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Matt Hung Siu wrote 30 Medicare Part D claims in 2024
In 2024, Matt Siu wrote 30 Medicare Part D claims for 18 patients. 47% of them were for generic drugs.
Matt Siu's Part D claims by kind of drug, 2024
- Generic14 claims47%
- Brand-name16 claims53%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Matt Hung Siu takes part in Medicare
Matt Siu 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)
For MedTech and pharma teams
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Matt Hung Siu received $112 in industry payments in 2025
CMS Open Payments shows 2 general payments to Matt Siu from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. CooperVision Inc. paid the most, $92.
Companies that paid Matt Siu the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Matt Hung Siu graduated from State University of New York - State College Optometry
Matt Siu graduated from State University of New York - State College Optometry in 2016.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Matt Hung Siu'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 Data |
| 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 (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 |
| 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 Matt Hung Siu
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Matt Hung Siu's NPI number?
Matt Hung Siu's NPI number is 1255783106. It was assigned on July 4, 2016, and it is active in the NPI Registry.
What does Matt Hung Siu specialize in?
Matt Hung Siu is an optometrist in Novato, California. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Matt Hung Siu practice?
Matt Siu practices at 7075 Redwood Blvd Suite F Suite F, Novato, CA 94945-4136. Matt Siu's primary practice is Eyewish Optometry in Novato, California. Dmand AI also links Matt Siu to 2 medical groups and 1 group practice or clinic.
What is Matt Hung Siu's office phone number?
The practice phone on file for Matt Siu is (415) 897-2997.
What is Matt Hung Siu's medical license number?
Matt Siu holds California license 34420TLG, one of the licenses on file in 2 states.
Which states has Matt Hung Siu been licensed in?
Dmand AI has state licenses on file for Matt Siu in California and Maryland.
Does Matt Hung Siu accept Medicare?
Yes. CMS lists Matt Siu as accepting Medicare assignment.
How many Medicare patients does Matt Hung Siu see?
CMS counts 106 Medicare patients who saw Matt Siu in 2024, with an average age of 75.
Where did Matt Hung Siu go to medical school?
Matt Siu graduated from State University of New York - State College Optometry in 2016.
Has Matt Hung Siu received payments from drug or device companies?
CMS Open Payments shows $112 in general payments to Matt Siu from 2 companies from 2025 to 2025. The largest total came from CooperVision Inc.
How long has Matt Hung Siu been practicing?
Matt Siu graduated from medical school in 2016, 10 years ago.
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