Alessandro Castellarin, M.D.
NPI 1689773244 · Retina Specialist (Ophthalmology) Physician · Santa Barbara, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alessandro Castellarin, M.D. is a Retina Specialist (Ophthalmology) Physician provider in Santa Barbara, CA (NPI 1689773244).
Provider details
- NPI number
- 1689773244
- Entity type
- Individual
- Primary specialty
- Retina Specialist (Ophthalmology) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A85976 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Other Service Providers
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
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
13,336 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 | 4,728 | $43 |
| Injection of Drug Into Eye67028 | 3,325 | $139 |
| Established Patient Complete Exam of Visual System92014 | 1,689 | $135 |
| Established Patient Problem Focused Exam of Visual System92012 | 1,147 | $95 |
| Photography of the Retina92250 | 729 | $38 |
| Extended Exam of the Back Part of the Eye With Optic Nerve Drawing92202 | 415 | $16 |
| Extended Exam of the Back Part of the Eye With Retinal Drawing |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisolone Acetate | 125 | 86 |
| Erythromycin Basebrand: Erythromycin | 111 | 80 |
| Brimonidine Tartrate | 80 | 29 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 77 | 33 |
| Latanoprost | 74 | 23 |
| Ketorolac Tromethamine | 70 | 23 |
| Timolol Maleate | 67 | 21 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$4,582 across 51 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
Additional practice locations (1)
- 2901 N Ventura Rd Ste 250Oxnard, CA 93036-1133Phone: (805) 983-8808
Registry dates
- Enumerated
- 2006-09-21
- Last updated
- 2022-06-06
- Certified
- 2022-06-06
Frequently asked questions
- What is Alessandro Castellarin's NPI number?
- Alessandro Castellarin's National Provider Identifier (NPI) is 1689773244, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alessandro Castellarin's specialty?
- Alessandro Castellarin is listed in the NPPES registry with a primary specialty of Retina Specialist (Ophthalmology) Physician (Allopathic & Osteopathic Physicians).
- Where is Alessandro Castellarin located?
- Alessandro Castellarin's practice location on file with NPPES is 525 E Micheltorena St Ste a, Santa Barbara, CA 93103-4211.
- What is Alessandro Castellarin's phone number?
- The practice phone number listed in the NPPES registry for Alessandro Castellarin is (805) 963-1648.
- Does Alessandro Castellarin accept Medicare?
- Alessandro Castellarin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alessandro Castellarin's NPI active?
- Yes — Alessandro Castellarin's NPI (1689773244) is active in the NPPES registry as of the last update on 2022-06-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.