Louis Cai
- Medicare services, 2024
- 5,097
- Medicare patients, 2024
- 382
- Part D claims, 2024
- 238
- Publications
- 24
- MIPS score, 2024
- 100
- Practice address
- 3395 S Bascom Ave, Campbell, CA 95008
- Practice phone
- Call (408) 559-0666
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Retinal Diagnostic Center a Medical Corporation
Campbell, California
Find Louis Cai'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.
Louis Cai is an ophthalmologist in Campbell, California
Louis Cai practices at Retinal Diagnostic Center a Medical Corporation in Campbell, California.
Louis Cai's NPI, 1194220632, was assigned on March 27, 2018. Louis Cai graduated from University of Miami, Miller School of Medicine in 2018. Louis Cai holds Florida license ME154746.
- NPI
- 1194220632NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8729314034
- NPI enumeration date
- March 27, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (408) 559-0666
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 38
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Louis Cai practices at Retinal Diagnostic Center a Medical Corporation in Campbell, California
Louis Cai's primary practice is Retinal Diagnostic Center a Medical Corporation, at 3395 S Bascom Ave, Campbell, CA 95008 in Santa Clara County. The practice phone is (408) 559-0666.
- Retinal Diagnostic Center a Medical Corporation3395 S Bascom Ave, Campbell, CA 95008 · Santa Clara CountyPhone(408) 559-0666
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Louis Cai is affiliated with 4 sites of care and 2 medical groups
Louis Cai's primary practice is Retinal Diagnostic Center a Medical Corporation in Campbell, California. Louis Cai is also affiliated with Good Samaritan Hospital. The medical group on file is University of Miami Health System. Dmand AI also links Louis Cai to 1 more 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 Louis Cai's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Louis Cai practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Retinal Diagnostic Center a Medical Corporation | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Louis Cai is one of 2,621 ophthalmologists in California
Ophthalmology is Louis Cai's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Louis Cai is board certified in ophthalmology by the American Board of Ophthalmology. Dmand AI has Louis Cai's licenses on file in 3 states: Florida, California and Pennsylvania.
Specialties and state licenses
- Ophthalmology, FloridaPrimary
- Retina specialist (ophthalmology), California
- Pennsylvania license
Ophthalmologists near Louis Cai
Counts of ophthalmologists 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
Louis Cai billed Medicare for 5,097 services in 2024
CMS data shows 5,097 Medicare services from Louis Cai across 12 procedure codes in 2024, for 382 Medicare patients. Medicare paid $207,924 for them.
Louis Cai's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 02024: 4,131
- Tests and treatments
- 2023: 02024: 677
- Surgery
- 2023: 02024: 136
- Office and hospital visits
- 2023: 762024: 13578%
- Imaging
- 2023: 02024: 18
Where Louis Cai's Medicare services took place, 2024
- In an office5,06899%
- In a facility291%
Louis Cai compared with the California median for ophthalmologists, 2024
- Louis Cai
- California median
- Medicare services
- 5,097vs 1,0794.7 times
- Medicare patients
- 382vs 4219% below
- Part D claims
- 159vs 61874% below
Medians across 2,568 ophthalmologists in California with Dmand AI profiles that report each measure.
Louis Cai's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Louis Cai?
Medicare shows one payer. Book a meeting to get commercial claims data for Louis Cai and other ophthalmologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Louis Cai treated 382 Medicare patients in 2024, average age 76
CMS counts 382 Medicare patients who saw Louis Cai in 2024. The largest group is 65 to 74, with 167 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 35% are also on Medicaid. Their average risk score is 1.44, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Louis Cai's median patient age at 71, with 51% women.
Louis Cai's Medicare patients by age, 2024
Louis Cai's Medicare patients by sex, 2024
- Women22960%
- Men15340%
Chronic conditions among Louis Cai's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis43%
- Diabetes42%
- Chronic kidney disease27%
- Ischemic heart disease25%
- Osteoporosis22%
- Heart failure16%
Share of Medicare patients with each condition. A patient can have several.
Louis Cai'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
- Women51%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Louis Cai wrote 238 Medicare Part D claims in 2024
In 2024, Louis Cai wrote 238 Medicare Part D claims for 107 patients. 75% of them were for generic drugs. CMS names the drug for 159 of them, across 6 drugs with 11 or more claims each, at $2,931 in total drug cost. In 2023, CMS named 140 claims across 7 drugs.
Louis Cai's Part D claims by kind of drug, 2024
- Generic178 claims75%
- Brand-name60 claims25%
Louis Cai's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1402024: 15914%
Drugs named by CMS: 6 in 2024, 7 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Louis Cai scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Louis Cai for performance year 2024, reported as part of a group. Louis Cai accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Louis Cai's MIPS scores, performance year 2024
- 100of 100Final score
- 100of 100Quality
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Cataract surgery: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Louis Cai has 24 publications on record
Dmand AI links 24 papers to Louis Cai, published from 2018 to 2025. 2021 was the busiest year, with 4. The most frequent topics are Retina, Artificial Intelligence and Ophthalmology. Louis Cai has published most often in Am J Ophthalmol. Louis Cai's most frequent co-authors are Nicolas A. Yannuzzi, MD, John William Hinkle, MD and Ajay Eapen Kuriyan, MD.
Louis Cai's papers by year, 2018 to 2025
Topics Louis Cai writes about most
- Retina
- Artificial Intelligence
- Ophthalmology
- Retinal Detachment
- Vitrectomy
- Tomography, Optical Coherence
- Angiogenesis Inhibitors
- COVID-19
Louis Cai's most frequent co-authors
- Nicolas A. Yannuzzi, MD6 shared papers
- John William Hinkle, MD5 shared papers
- Ajay Eapen Kuriyan, MD5 shared papers
Recent publications by Louis Cai
Diagnostics (Basel)
Am J Ophthalmol
See who Louis Cai researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Louis Cai works with, so you can find a warm path to the right ophthalmologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Louis Cai received $3,340 in industry payments from 2021 to 2025
CMS Open Payments shows 58 general payments to Louis Cai from 15 drug and device companies from 2021 to 2025. Food and beverage make up the largest share, 100% of the total. Alcon Laboratories Inc paid the most, $1,150.
General payments to Louis Cai by program year, 2021 to 2025
Companies that paid Louis Cai the most, 2021 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Louis Cai graduated from University of Miami, Miller School of Medicine
Louis Cai graduated from University of Miami, Miller School of Medicine in 2018.
- Medical school
- Board certified in ophthalmology
Source: Dmand AI Professional Profile Data
Louis Cai accepts plans from 12 insurance carriers
Louis Cai is in network with 12 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Molina
- Regence Health Plans
- +4 more carriersWith a free account
Plan types Louis Cai accepts, by number of carriers
- Medicare9
- PPO7
- HMO6
- POS5
- EPO3
Source: Dmand AI Insurance Network Data
Sources for Louis Cai'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 services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| 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 and Drug (CMS) (opens in a new tab)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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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 Louis Cai
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Louis Cai's NPI number?
Louis Cai's NPI number is 1194220632. It was assigned on March 27, 2018, and it is active in the NPI Registry.
What does Louis Cai specialize in?
Louis Cai is an ophthalmologist in Campbell, California. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Louis Cai practice?
Louis Cai practices at 3395 S Bascom Ave, Campbell, CA 95008. Louis Cai's primary practice is Retinal Diagnostic Center a Medical Corporation in Campbell, California. Dmand AI also links Louis Cai to 1 physician office, 1 group practice or clinic and 1 medical group.
What is Louis Cai's office phone number?
The practice phone on file for Louis Cai is (408) 559-0666.
What is Louis Cai's medical license number?
Louis Cai holds Florida license ME154746, one of the licenses on file in 3 states.
Which states has Louis Cai been licensed in?
Dmand AI has state licenses on file for Louis Cai in Florida (2022 to 2026), California (2024 to 2026) and Pennsylvania (2019 to 2022).
Which hospitals is Louis Cai affiliated with?
Louis Cai is affiliated with Good Samaritan Hospital.
What medical group is Louis Cai part of?
Louis Cai is linked to University of Miami Health System. Dmand AI links Louis Cai to 1 more medical group.
Does Louis Cai accept Medicare?
Yes. CMS data shows Louis Cai billed Medicare for 5,097 services in 2024, and Louis Cai accepts Medicare assignment.
What is Louis Cai's MIPS score?
Louis Cai's MIPS final score for performance year 2024 is 100 out of 100, reported as part of a group.
Show 10 more questionsShow fewer questions
How many Medicare patients does Louis Cai see?
CMS counts 382 Medicare patients who saw Louis Cai in 2024, with an average age of 76.
Is Louis Cai board certified?
Yes. Louis Cai is board certified in ophthalmology by the American Board of Ophthalmology.
What services does Louis Cai bill to Medicare?
In 2024, Louis Cai's most billed Medicare services were injected or infused drug (J2777), eye exam or test (92134) and eye exam or test (92014).
Where did Louis Cai go to medical school?
Louis Cai graduated from University of Miami, Miller School of Medicine in 2018.
What drugs does Louis Cai prescribe most?
In 2024 Medicare Part D data, Louis Cai's most prescribed drugs by claims were Prednisolone Acetate, Dorzolamide-Timolol and Neomycin-Polymyxin-Dexameth.
Has Louis Cai received payments from drug or device companies?
CMS Open Payments shows $3,340 in general payments to Louis Cai from 15 companies from 2021 to 2025. The largest total came from Alcon Laboratories Inc.
How long has Louis Cai been practicing?
Louis Cai graduated from medical school in 2018, 8 years ago.
Does Louis Cai do research?
Dmand AI links 24 publications to Louis Cai, published from 2018 to 2025.
Who does Louis Cai publish with?
Louis Cai's most frequent co-authors are Nicolas A. Yannuzzi, MD (6 shared papers), John William Hinkle, MD (5 shared papers) and Ajay Eapen Kuriyan, MD (5 shared papers).
What insurance does Louis Cai accept?
Louis Cai is in network with 12 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
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