Louis Cai
NPI 1194220632 · Ophthalmology Physician · Campbell, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Louis Cai is a Ophthalmology Physician provider in Campbell, CA (NPI 1194220632).
Provider details
- NPI number
- 1194220632
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- A194964 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
8 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
987 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Imaging of Retina92134 | 415 | $49 |
| Established Patient Complete Exam of Visual System92014 | 190 | $153 |
| Injection of Drug Into Eye67028 | 136 | $140 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 106 | $194 |
| Established Patient Problem Focused Exam of Visual System92012 | 41 | $109 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 29 | $78 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisolone Acetate | 47 | 31 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 32 | 19 |
| Neomycin/Polymyxin B/Dexamethabrand: Neomycin-Polymyxin-Dexameth | 31 | 28 |
| Brimonidine Tartrate | 24 | — |
| Ketorolac Tromethamine | 14 | — |
| Valacyclovir Hclbrand: Valacyclovir | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$796 across 18 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-03-27
- Last updated
- 2024-08-02
- Certified
- 2024-08-02
Frequently asked questions
- What is Louis Cai's NPI number?
- Louis Cai's National Provider Identifier (NPI) is 1194220632, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Louis Cai's specialty?
- Louis Cai is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Louis Cai located?
- Louis Cai's practice location on file with NPPES is 3395 S Bascom Ave, Campbell, CA 95008-6770.
- What is Louis Cai's phone number?
- The practice phone number listed in the NPPES registry for Louis Cai is (140) 855-9066.
- Does Louis Cai accept Medicare?
- Louis Cai is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Louis Cai's NPI active?
- Yes — Louis Cai's NPI (1194220632) is active in the NPPES registry as of the last update on 2024-08-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.