Diana Kersten, M.D.
NPI 1154387595 · Ophthalmology Physician · Laguna Hills, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diana Kersten, M.D. is a Ophthalmology Physician provider in Laguna Hills, CA (NPI 1154387595).
Provider details
- NPI number
- 1154387595
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A42878 (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
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
2,566 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 Complete Exam of Visual System92014 | 466 | $139 |
| Imaging of Retina92134 | 386 | $42 |
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 352 | $534 |
| Insertion of Drug Delivery Implant Into Tear Duct of Eye68841 | 307 | $17 |
| Ct Scan of Cornea92025 | 280 | $40 |
| Measurement of Corneal Curvature and Depth of Eye92136 | 228 | $51 |
| Established Patient Problem Focused Exam of Visual System |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisolone Acetate | 263 | 186 |
| Latanoprost | 164 | 49 |
| Bromfenac Sodiumbrand: Prolensa | 121 | 91 |
| Difluprednate | 95 | 66 |
| Ofloxacin | 93 | 68 |
| Bromfenac Sodium | 56 | 37 |
| Timolol Maleate | 48 | 11 |
| Doxycycline Hyclate | 23 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$504 across 10 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
- 2006-04-25
- Last updated
- 2008-12-02
Frequently asked questions
- What is Diana Kersten's NPI number?
- Diana Kersten's National Provider Identifier (NPI) is 1154387595, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diana Kersten's specialty?
- Diana Kersten is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Diana Kersten located?
- Diana Kersten's practice location on file with NPPES is 24401 Calle De La Louisa, Laguna Hills, CA 92653-3623.
- What is Diana Kersten's phone number?
- The practice phone number listed in the NPPES registry for Diana Kersten is (949) 951-2020.
- Does Diana Kersten accept Medicare?
- Diana Kersten is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diana Kersten's NPI active?
- Yes — Diana Kersten's NPI (1154387595) is active in the NPPES registry as of the last update on 2008-12-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.