Steven K. Siu, OD
- Part D claims, 2024
- 14
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2020
- Practice address
- 23600 El Toro Rd, Lake Forest, CA 92630
- Practice phone
- Call (800) 571-5202
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
National Vision, Inc.
Lake Forest, California
Find Steven 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.
Steven K. Siu is an optometrist in Lake Forest, California
Steven Siu practices at National Vision, Inc. in Lake Forest, California.
Steven Siu's NPI, 1578196341, was assigned on February 19, 2020. Steven Siu holds Illinois license 046011416.
- NPI
- 1578196341NPI Registry (opens in a new tab)
- NPI enumeration date
- February 19, 2020
- NPI status
- Active
- Practice phone
- (800) 571-5202
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Steven K. Siu practices at National Vision, Inc. in Lake Forest, California
Steven Siu's primary practice is National Vision, Inc., at 23600 El Toro Rd, Lake Forest, CA 92630 in Orange County. The practice phone is (800) 571-5202.
- National Vision, Inc.23600 El Toro Rd, Lake Forest, CA 92630 · Orange CountyPhone(800) 571-5202
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Steven K. Siu is affiliated with 1 site of care and 1 medical group
Steven Siu's primary practice is National Vision, Inc. in Lake Forest, California. Dmand AI also links Steven Siu to 1 medical group, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Steven K. Siu's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Steven Siu practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| National Vision, Inc. | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Steven K. Siu is one of 7,206 optometrists in California
Optometrist is Steven Siu's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Steven Siu is licensed in Illinois.
Specialties and state licenses
- Optometrist, IllinoisPrimary
Optometrists near Steven 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
Steven K. Siu's patients have a median age of 60
Across all payers, Dmand AI patient panel data puts Steven Siu's median patient age at 60, with 50% women.
Steven 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 60
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
Steven K. Siu wrote 14 Medicare Part D claims in 2024
In 2024, Steven Siu wrote 14 Medicare Part D claims for 11 patients.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Sources for Steven K. 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 | 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 Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| 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 Steven K. 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 Steven K. Siu's NPI number?
Steven K. Siu's NPI number is 1578196341. It was assigned on February 19, 2020, and it is active in the NPI Registry.
What does Steven K. Siu specialize in?
Steven K. Siu is an optometrist in Lake Forest, California. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Steven K. Siu practice?
Steven Siu practices at 23600 El Toro Rd, Lake Forest, CA 92630. Steven Siu's primary practice is National Vision, Inc. in Lake Forest, California. Dmand AI also links Steven Siu to 1 medical group.
What is Steven K. Siu's office phone number?
The practice phone on file for Steven Siu is (800) 571-5202.
What is Steven K. Siu's medical license number?
Steven Siu holds Illinois license 046011416.
How long has Steven K. Siu been practicing?
Steven Siu's NPI was assigned in 2020.
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