Joanna Hsia, OD
- Affiliated sites
- 2
- Medical groups
- 2
- State license
- 1
- Year NPI issued
- 2010
- Practice locations
- 2
- Practice address
- 21612 Plano Trabuco Rd Ste C Suite C, Trabuco Canyon, CA 92679
- Practice phone
- Call (618) 462-9818
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Ecs Of Los Angeles I Optometry
Eye care practice · Trabuco Canyon, California
Find Joanna Hsia'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.
Joanna Hsia is an optometrist in Costa Mesa, California
Joanna Hsia practices at Ecs Of Los Angeles I Optometry in Trabuco Canyon, California.
Joanna Hsia's NPI, 1255631578, was assigned on November 2, 2010. Joanna Hsia holds California license OPT 13956 TLG.
- NPI
- 1255631578NPI Registry (opens in a new tab)
- NPI enumeration date
- November 2, 2010
- NPI status
- Active
- Practice phone
- (618) 462-9818
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Joanna Hsia practices in Trabuco Canyon and Costa Mesa
Joanna Hsia's primary practice is Ecs of Los Angeles I Optometry, at 21612 Plano Trabuco Rd Ste C Suite C, Trabuco Canyon, CA 92679. The practice phone is (618) 462-9818. The NPI Registry lists Joanna Hsia's practice address as 1696 Newport Blvd, Costa Mesa, CA 92627.
- Ecs of Los Angeles I OptometryPrimary21612 Plano Trabuco Rd Ste C Suite C, Trabuco Canyon, CA 92679Phone(618) 462-9818
- NPI Registry address1696 Newport Blvd, Costa Mesa, CA 92627
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Joanna Hsia is affiliated with 2 sites of care and 2 medical groups
Joanna Hsia's primary practice is Ecs Of Los Angeles I Optometry in Trabuco Canyon, California. Dmand AI also links Joanna Hsia to 2 medical groups and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Joanna Hsia's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Joanna Hsia practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ecs Of Los Angeles I 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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Joanna Hsia is one of 7,206 optometrists in California
Optometrist is Joanna Hsia's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Joanna Hsia is licensed in California.
Specialties and state licenses
- Optometrist, CaliforniaPrimary
Optometrists near Joanna Hsia
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
Joanna Hsia's patients have a median age of 64
Across all payers, Dmand AI patient panel data puts Joanna Hsia's median patient age at 64, with 46% women.
Joanna Hsia's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women46%
- Men54%
Source: Dmand AI Patient Panel Data
Sources for Joanna Hsia'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 Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel 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 Joanna Hsia
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Joanna Hsia's NPI number?
Joanna Hsia's NPI number is 1255631578. It was assigned on November 2, 2010, and it is active in the NPI Registry.
What does Joanna Hsia specialize in?
Joanna Hsia is an optometrist in Costa Mesa, California. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Joanna Hsia practice?
Joanna Hsia practices at 21612 Plano Trabuco Rd Ste C Suite C, Trabuco Canyon, CA 92679. Joanna Hsia also practices at 1696 Newport Blvd, Costa Mesa, CA 92627. Joanna Hsia's primary practice is Ecs Of Los Angeles I Optometry in Trabuco Canyon, California. Dmand AI also links Joanna Hsia to 2 medical groups and 1 group practice or clinic.
What is Joanna Hsia's office phone number?
The practice phone on file for Joanna Hsia is (618) 462-9818.
What is Joanna Hsia's medical license number?
Joanna Hsia holds California license OPT 13956 TLG.
How long has Joanna Hsia been practicing?
Joanna Hsia's NPI was assigned in 2010.
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