John Ryan Christiansen, OD
- Industry payments
- $163
- Affiliated sites
- 1
- State license
- 1
- Year NPI issued
- 2025
- Practice address
- 1060 Exposition Blvd, Los Angeles, CA 90007
- Practice phone
- Call (323) 541-1600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Rolland Curtis Clinic
FQHC - Main Site · Los Angeles, California
Find John Christiansen's professional email, personal email and mobile number
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John Ryan Christiansen is an optometrist in Los Angeles, California
John Christiansen practices at Rolland Curtis Clinic in Los Angeles, California.
John Christiansen's NPI, 1194618801, was assigned on May 31, 2025. John Christiansen holds California license 35956.
- NPI
- 1194618801NPI Registry (opens in a new tab)
- NPI enumeration date
- May 31, 2025
- NPI status
- Active
- Practice phone
- (323) 541-1600
- 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
John Ryan Christiansen practices at Rolland Curtis Clinic in Los Angeles, California
John Christiansen's primary practice is Rolland Curtis Clinic, at 1060 Exposition Blvd, Los Angeles, CA 90007 in Los Angeles County. The practice phone is (323) 541-1600.
- Rolland Curtis Clinic1060 Exposition Blvd, Los Angeles, CA 90007 · Los Angeles CountyPhone(323) 541-1600
Source: Dmand AI Affiliation Data
John Ryan Christiansen is affiliated with 1 site of care
John Christiansen's primary practice is Rolland Curtis Clinic in Los Angeles, California.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at John Ryan Christiansen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where John Christiansen practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Rolland Curtis Clinic | Available with a free account |
Source: Dmand AI Technology Install Data
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John Ryan Christiansen is one of 7,206 optometrists in California
Optometrist is John Christiansen's primary specialty in the NPI Registry, under taxonomy code 152W00000X. John Christiansen is licensed in California.
Specialties and state licenses
- Optometrist, CaliforniaPrimary
Optometrists near John Christiansen
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
John Ryan Christiansen's patients have a median age of 34
Across all payers, Dmand AI patient panel data puts John Christiansen's median patient age at 34, with 52% women.
John Christiansen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 34
Patient panel by sex, all payers
- Women52%
- Men48%
Source: Dmand AI Patient Panel Data
John Ryan Christiansen received $163 in industry payments in 2025
CMS Open Payments shows 2 general payments to John Christiansen from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. CooperVision Inc. paid the most, $163.
Companies that paid John Christiansen 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 John Ryan Christiansen'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 John Ryan Christiansen
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What is John Ryan Christiansen's NPI number?
John Ryan Christiansen's NPI number is 1194618801. It was assigned on May 31, 2025, and it is active in the NPI Registry.
What does John Ryan Christiansen specialize in?
John Ryan Christiansen is an optometrist in Los Angeles, California. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does John Ryan Christiansen practice?
John Christiansen practices at 1060 Exposition Blvd, Los Angeles, CA 90007. John Christiansen's primary practice is Rolland Curtis Clinic in Los Angeles, California.
What is John Ryan Christiansen's office phone number?
The practice phone on file for John Christiansen is (323) 541-1600.
What is John Ryan Christiansen's medical license number?
John Christiansen holds California license 35956.
Has John Ryan Christiansen received payments from drug or device companies?
CMS Open Payments shows $163 in general payments to John Christiansen from 1 company from 2025 to 2025. The largest total came from CooperVision Inc.
How long has John Ryan Christiansen been practicing?
John Christiansen's NPI was assigned in 2025.
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