Mark Allen Chung, OD
- Industry payments
- $1,166
- Affiliated sites
- 2
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2007
- Practice address
- 27271 Las Ramblas, Mission Viejo, CA 92691
- Practice phone
- Call (858) 487-5555
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Total Vision
Mission Viejo, California
Find Mark Chung'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.
Mark Allen Chung is an optometrist in Mission Viejo, California
Mark Chung practices at Total Vision in Mission Viejo, California.
Mark Chung's NPI, 1841316833, was assigned on March 21, 2007. Mark Chung graduated from Southern California College of Optometry in 1982. Mark Chung holds California license 7904T.
- NPI
- 1841316833NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5395963433
- NPI enumeration date
- March 21, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (858) 487-5555
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 70
- Medical school graduation
- 1982
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Mark Allen Chung practices at Total Vision in Mission Viejo, California
Mark Chung's primary practice is Total Vision, at 27271 Las Ramblas, Mission Viejo, CA 92691 in Orange County. The practice phone is (858) 487-5555.
- Total Vision27271 Las Ramblas, Mission Viejo, CA 92691 · Orange CountyPhone(858) 487-5555
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Mark Allen Chung is affiliated with 3 sites of care and 1 medical group
Mark Chung's primary practice is Total Vision in Mission Viejo, California. Dmand AI also links Mark Chung to 1 physician office, 1 group practice or clinic and 1 medical group, each 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 Mark Allen Chung's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Mark Chung practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Total Vision | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Mark Allen Chung is one of 7,206 optometrists in California
Optometrist is Mark Chung's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Mark Chung is licensed in California.
Specialties and state licenses
- Optometrist, CaliforniaPrimary
Optometrists near Mark Chung
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
Mark Allen Chung's patients have a median age of 71
Across all payers, Dmand AI patient panel data puts Mark Chung's median patient age at 71, with 39% women.
Mark Chung's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women39%
- Men61%
Source: Dmand AI Patient Panel Data
How Mark Allen Chung takes part in Medicare
Mark Chung accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
Mark Allen Chung received $1,166 in industry payments in 2025
CMS Open Payments shows 11 general payments to Mark Chung from 4 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Glaukos Corporation paid the most, $630.
Companies that paid Mark Chung the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Mark Allen Chung graduated from Southern California College of Optometry
Mark Chung graduated from Southern California College of Optometry in 1982.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Mark Allen Chung'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 |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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 Mark Allen Chung
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Mark Allen Chung's NPI number?
Mark Allen Chung's NPI number is 1841316833. It was assigned on March 21, 2007, and it is active in the NPI Registry.
What does Mark Allen Chung specialize in?
Mark Allen Chung is an optometrist in Mission Viejo, California. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Mark Allen Chung practice?
Mark Chung practices at 27271 Las Ramblas, Mission Viejo, CA 92691. Mark Chung's primary practice is Total Vision in Mission Viejo, California. Dmand AI also links Mark Chung to 1 physician office, 1 group practice or clinic and 1 medical group.
What is Mark Allen Chung's office phone number?
The practice phone on file for Mark Chung is (858) 487-5555.
What is Mark Allen Chung's medical license number?
Mark Chung holds California license 7904T.
Does Mark Allen Chung accept Medicare?
Yes. CMS lists Mark Chung as accepting Medicare assignment.
Where did Mark Allen Chung go to medical school?
Mark Chung graduated from Southern California College of Optometry in 1982.
Has Mark Allen Chung received payments from drug or device companies?
CMS Open Payments shows $1,166 in general payments to Mark Chung from 4 companies from 2025 to 2025. The largest total came from Glaukos Corporation.
How long has Mark Allen Chung been practicing?
Mark Chung graduated from medical school in 1982, 44 years ago.
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