Stephen W. Lum, OD
- Industry payments
- $2,313
- Affiliated sites
- 2
- Medical group
- 1
- State licenses
- 2
- Year NPI issued
- 2007
- Practice address
- 2743 Highland Avenue, National City, CA 91950
- Practice phone
- Call (619) 474-2284
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
OpSam Health - National City
FQHC - Main Site · National City, California
Find Stephen Lum'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.
Stephen W. Lum is an optometrist in National City, California
Stephen Lum practices at OpSam Health - National City in National City, California.
Stephen Lum's NPI, 1538210182, was assigned on January 12, 2007. Stephen Lum holds Washington license OD60276564.
- NPI
- 1538210182NPI Registry (opens in a new tab)
- NPI enumeration date
- January 12, 2007
- NPI status
- Active
- Practice phone
- (619) 474-2284
- 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 Affiliation Data
Stephen W. Lum practices at OpSam Health - National City in National City, California
Stephen Lum's primary practice is OpSam Health - National City, at 2743 Highland Avenue, National City, CA 91950 in San Diego County. The practice phone is (619) 474-2284.
- OpSam Health - National City2743 Highland Avenue, National City, CA 91950 · San Diego CountyPhone(619) 474-2284
Source: Dmand AI Affiliation Data
Stephen W. Lum is affiliated with 2 sites of care and 1 medical group
Stephen Lum's primary practice is OpSam Health - National City in National City, California. Dmand AI also links Stephen Lum to 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Stephen W. Lum's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Stephen Lum practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| OpSam Health - National City | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Stephen W. Lum is one of 7,206 optometrists in California
Optometrist is Stephen Lum's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Dmand AI has Stephen Lum's licenses on file in 2 states: Washington and California.
Specialties and state licenses
- Optometrist, WashingtonPrimary
- California license
Optometrists near Stephen Lum
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
Stephen W. Lum's patients have a median age of 54
Across all payers, Dmand AI patient panel data puts Stephen Lum's median patient age at 54, with 51% women.
Stephen Lum's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 54
Patient panel by sex, all payers
- Women51%
- Men48%
Source: Dmand AI Patient Panel Data
Stephen W. Lum received $2,313 in industry payments in 2025
CMS Open Payments shows 1 general payment to Stephen Lum from 1 drug or device company in 2025. Speaker and faculty fees make up the largest share, 100% of the total. Optos, Inc. paid the most, $2,313.
Companies that paid Stephen Lum the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Stephen W. Lum'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 DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Industry payments | Open Payments (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 Stephen W. Lum
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Stephen W. Lum's NPI number?
Stephen W. Lum's NPI number is 1538210182. It was assigned on January 12, 2007, and it is active in the NPI Registry.
What does Stephen W. Lum specialize in?
Stephen W. Lum is an optometrist in National City, California. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Stephen W. Lum practice?
Stephen Lum practices at 2743 Highland Avenue, National City, CA 91950. Stephen Lum's primary practice is OpSam Health - National City in National City, California. Dmand AI also links Stephen Lum to 1 group practice or clinic and 1 medical group.
What is Stephen W. Lum's office phone number?
The practice phone on file for Stephen Lum is (619) 474-2284.
What is Stephen W. Lum's medical license number?
Stephen Lum holds Washington license OD60276564, one of the licenses on file in 2 states.
Which states has Stephen W. Lum been licensed in?
Dmand AI has state licenses on file for Stephen Lum in Washington and California.
Has Stephen W. Lum received payments from drug or device companies?
CMS Open Payments shows $2,313 in general payments to Stephen Lum from 1 company from 2025 to 2025. The largest total came from Optos, Inc.
How long has Stephen W. Lum been practicing?
Stephen Lum's NPI was assigned in 2007.
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