Ryan Tsain Marr, OD
- Medicare patients, 2024
- 15
- Part D claims, 2024
- 53
- Industry payments
- $33
- Affiliated sites
- 3
- Medical groups
- 4
- Practice address
- 10737 Camino Ruiz, Suite 235, San Diego, CA 92126
- Practice phone
- Call (858) 578-4220
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
OpSam Health - Mira Mesa Medical & Dental
FQHC - Main Site · San Diego, California
Find Ryan Marr'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.
Ryan Tsain Marr is an optometrist in San Diego, California
Ryan Marr practices at OpSam Health - Mira Mesa Medical & Dental in San Diego, California.
Ryan Marr's NPI, 1235857525, was assigned on August 22, 2022. Ryan Marr holds California license 35302.
- NPI
- 1235857525NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5991181596
- NPI enumeration date
- August 22, 2022
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (858) 578-4220
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 30
- Medical school graduation
- 2022
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Ryan Tsain Marr practices at OpSam Health - Mira Mesa Medical & Dental in San Diego, California
Ryan Marr's primary practice is OpSam Health - Mira Mesa Medical & Dental, at 10737 Camino Ruiz, Suite 235, San Diego, CA 92126 in San Diego County. The practice phone is (858) 578-4220.
- OpSam Health - Mira Mesa Medical & Dental10737 Camino Ruiz, Suite 235, San Diego, CA 92126 · San Diego CountyPhone(858) 578-4220
Source: Dmand AI Affiliation Data
Ryan Tsain Marr is affiliated with 3 sites of care and 4 medical groups
Ryan Marr's primary practice is OpSam Health - Mira Mesa Medical & Dental in San Diego, California. The medical group on file is San Ysidro Health. Dmand AI also links Ryan Marr to 3 more medical groups, 1 community health center and 1 ambulatory surgery center, each named with a free account. Ryan Marr's employer is on file too: a community health center (fqhc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Ryan Tsain Marr's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Ryan Marr practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| OpSam Health - Mira Mesa Medical & Dental | Available with a free account |
| +2 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Ryan Tsain Marr is one of 7,206 optometrists in California
Optometrist is Ryan Marr's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Ryan Marr is licensed in California.
Specialties and state licenses
- Optometrist, CaliforniaPrimary
Optometrists near Ryan Marr
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
Ryan Tsain Marr treated 15 Medicare patients in 2024, average age 76
CMS counts 15 Medicare patients who saw Ryan Marr in 2024. The largest group is under 65, with 0 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.76, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Ryan Marr's median patient age at 55, with 60% women.
Ryan Marr's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Ryan Marr's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
Share of Medicare patients with each condition. A patient can have several.
Ryan Marr's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 55
Patient panel by sex, all payers
- Women60%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Ryan Tsain Marr wrote 53 Medicare Part D claims in 2024
In 2024, Ryan Marr wrote 53 Medicare Part D claims for 28 patients. 60% of them were for generic drugs.
Ryan Marr's Part D claims by kind of drug, 2024
- Generic32 claims60%
- Brand-name21 claims40%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Ryan Tsain Marr takes part in Medicare
Ryan Marr 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)
For MedTech and pharma teams
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Ryan Tsain Marr received $33 in industry payments in 2025
CMS Open Payments shows 2 general payments to Ryan Marr from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Tarsus Pharmaceuticals, Inc. paid the most, $20.
Companies that paid Ryan Marr 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 Ryan Tsain Marr'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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| 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) |
| 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 Ryan Tsain Marr
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Ryan Tsain Marr's NPI number?
Ryan Tsain Marr's NPI number is 1235857525. It was assigned on August 22, 2022, and it is active in the NPI Registry.
What does Ryan Tsain Marr specialize in?
Ryan Tsain Marr is an optometrist in San Diego, California. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Ryan Tsain Marr practice?
Ryan Marr practices at 10737 Camino Ruiz, Suite 235, San Diego, CA 92126. Ryan Marr's primary practice is OpSam Health - Mira Mesa Medical & Dental in San Diego, California. Dmand AI also links Ryan Marr to 3 medical groups, 1 community health center and 1 ambulatory surgery center.
What is Ryan Tsain Marr's office phone number?
The practice phone on file for Ryan Marr is (858) 578-4220.
What is Ryan Tsain Marr's medical license number?
Ryan Marr holds California license 35302, one of 2 state licenses on file.
What medical group is Ryan Tsain Marr part of?
Ryan Marr is linked to San Ysidro Health. Dmand AI links Ryan Marr to 3 more medical groups.
Does Ryan Tsain Marr accept Medicare?
Yes. CMS lists Ryan Marr as accepting Medicare assignment.
How many Medicare patients does Ryan Tsain Marr see?
CMS counts 15 Medicare patients who saw Ryan Marr in 2024, with an average age of 76.
Has Ryan Tsain Marr received payments from drug or device companies?
CMS Open Payments shows $33 in general payments to Ryan Marr from 2 companies from 2025 to 2025. The largest total came from Tarsus Pharmaceuticals, Inc.
How long has Ryan Tsain Marr been practicing?
Ryan Marr graduated from medical school in 2022, 4 years ago.
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