Ronald Gaster, MD
NPI 1306940325 · Ophthalmology Physician · Long Beach, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ronald Gaster, MD is a Ophthalmology Physician provider in Long Beach, CA (NPI 1306940325).
Provider details
- NPI number
- 1306940325
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A026039 (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
19 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
1,066 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 | 273 | $140 |
| Ct Scan of Cornea92025 | 225 | $40 |
| Ultrasound Scan of Cornea to Determine Thickness76514 | 189 | $12 |
| Ultrasound Scan to Determine Eye Length and Lens Power76519 | 179 | $54 |
| Imaging of Optic Nerve92133 | 93 | $37 |
| Established Patient Problem Focused Exam of Visual System92012 | 65 | $102 |
| New Patient Complete Exam of Visual System |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisolone Acetate | 86 | 38 |
| Moxifloxacin Hclbrand: Moxifloxacin | 54 | 26 |
| Lifitegrastbrand: Xiidra | 46 | — |
| Cyclosporinebrand: Restasis | 32 | — |
| Cyclosporinebrand: Restasis Multidose | 21 | — |
| Loteprednol Etabonate | 20 | — |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 16 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$516 across 15 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
- 2006-09-11
- Last updated
- 2007-07-08
Frequently asked questions
- What is Ronald Gaster's NPI number?
- Ronald Gaster's National Provider Identifier (NPI) is 1306940325, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ronald Gaster's specialty?
- Ronald Gaster is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Ronald Gaster located?
- Ronald Gaster's practice location on file with NPPES is 5901 E 7th St, Long Beach, CA 90822-5201.
- What is Ronald Gaster's phone number?
- The practice phone number listed in the NPPES registry for Ronald Gaster is (562) 826-8000.
- Does Ronald Gaster accept Medicare?
- Ronald Gaster is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ronald Gaster's NPI active?
- Yes — Ronald Gaster's NPI (1306940325) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.