Diana Katsman, MD
NPI 1306003132 · Ophthalmology Physician · Torrance, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diana Katsman, MD is a Ophthalmology Physician provider in Torrance, CA (NPI 1306003132).
Provider details
- NPI number
- 1306003132
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- A112485 (CA)
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
18 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
7,610 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 | 2,602 | $31 |
| Injection of Drug Into Eye67028 | 966 | $123 |
| Extended Exam of the Back Part of the Eye With Optic Nerve Drawing92202 | 944 | $16 |
| Extended Exam of the Back Part of the Eye With Retinal Drawing92201 | 762 | $27 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 724 | $98 |
| Compounded Drug, Not Otherwise ClassifiedJ7999 | 554 | $93 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 26 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cyclosporine | 276 | 52 |
| Latanoprost | 136 | 35 |
| Neomycin/Polymyxin B/Dexamethabrand: Neomycin-Polymyxin-Dexameth | 113 | 72 |
| Cyclosporinebrand: Restasis | 81 | 28 |
| Brimonidine Tartrate | 66 | 18 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 62 | 19 |
| Brimonidine Tartrate/Timololbrand: Combigan | 59 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$678 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
- 2008-05-20
- Last updated
- 2018-04-04
Frequently asked questions
- What is Diana Katsman's NPI number?
- Diana Katsman's National Provider Identifier (NPI) is 1306003132, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diana Katsman's specialty?
- Diana Katsman is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Diana Katsman located?
- Diana Katsman's practice location on file with NPPES is 1000 West Carson Street, Torrance, CA 90509.
- What is Diana Katsman's phone number?
- The practice phone number listed in the NPPES registry for Diana Katsman is (310) 222-2409.
- Does Diana Katsman accept Medicare?
- Diana Katsman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diana Katsman's NPI active?
- Yes — Diana Katsman's NPI (1306003132) is active in the NPPES registry as of the last update on 2018-04-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.