Karin Thomas, MD
NPI 1861462525 · Ophthalmology Physician · La Jolla, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karin Thomas, MD is a Ophthalmology Physician provider in La Jolla, CA (NPI 1861462525).
Provider details
- NPI number
- 1861462525
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- C1-0011955 (DE)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 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
602 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) |
|---|---|---|
| Established Patient Problem Focused Exam of Visual System92012 | 195 | $88 |
| Established Patient Complete Exam of Visual System92014 | 143 | $124 |
| Imaging of Retina92134 | 47 | $40 |
| Exam of Visual Field With Extended Testing92083 | 40 | $63 |
| New Patient Complete Exam of Visual System92004 | 38 | $147 |
| Imaging of Optic Nerve92133 | 37 | $33 |
| Exam of the Internal Drainage System of Eye92020 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 76 | 25 |
| Erythromycin Basebrand: Erythromycin | 57 | 32 |
| Neomycin/Polymyxin B/Dexamethabrand: Neomycin-Polymyxin-Dexameth | 36 | 28 |
| Prednisolone Acetate | 35 | 18 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 27 | — |
| Timolol Maleate | 23 | — |
| Brimonidine Tartrate | 20 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$342 across 11 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
- 2006-01-25
- Last updated
- 2019-07-22
Frequently asked questions
- What is Karin Thomas's NPI number?
- Karin Thomas's National Provider Identifier (NPI) is 1861462525, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karin Thomas's specialty?
- Karin Thomas is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Karin Thomas located?
- Karin Thomas's practice location on file with NPPES is 9415 Campus Point Dr, La Jolla, CA 92093-0946.
- What is Karin Thomas's phone number?
- The practice phone number listed in the NPPES registry for Karin Thomas is (858) 534-6690.
- Does Karin Thomas accept Medicare?
- Karin Thomas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karin Thomas's NPI active?
- Yes — Karin Thomas's NPI (1861462525) is active in the NPPES registry as of the last update on 2019-07-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.