Doctor profile · Federal record

Dr. Alessandro Castellarin, M.D.

Retina Specialist (Ophthalmology) Physician (CMS: Ophthalmology) · Specialist · Santa Barbara, CA

  • NPI 1689773244
  • Accepts Medicare
  • 36 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
525 E Micheltorena St Ste A
Santa Barbara, CA 931034211
(805) 963-1648
Additional location
2901 N Ventura RD Ste 250
Oxnard, CA 930361133
(805) 983-8808

Credentials & registration

NPPES · NUCC
NPI registered
September 2006 — 20 yrs on file
Profile last updated
June 6, 2022
Year of graduation
1990 — 36 yrs since
Specialty taxonomy
207WX0107X — NUCC code
State license (1)
California #A85976

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1689773244. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
42,566
Distinct HCPCS
10
Medicare allowed
$6,912,653
HCPCS Description Services Patients Avg allowed
J2777 Injection, faricimab-svoa, 0.1 mg 17,880 59 $36
Q5128 Injection, ranibizumab-eqrn (cimerli), biosimilar, 0.1 mg 4,608 244 $274
92134 Imaging of retina 3,870 1,536 $43
67028 Injection of drug into eye 3,000 682 $136
J0178 Injection, aflibercept, 1 mg 2,932 295 $864
J2778 Injection, ranibizumab, 0.1 mg 1,906 101 $229
92014 Established patient complete exam of visual system 1,723 1,416 $136
92250 Photography of the retina 1,457 1,163 $39
Q5124 Injection, ranibizumab-nuna, biosimilar, (byooviz), 0.1 mg 1,160 65 $226
92012 Established patient problem focused exam of visual system 1,093 618 $97

In context: peer comparison

Among 5 peers in Santa Barbara Retina Specialist (Ophthalmology) Physician, average services per provider: 1,545. This provider delivers 28× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$4,582
Transactions
51
Manufacturers
13
Payer (manufacturer) Industry Txns Amount
Astellas Pharma US INC 9 $2,767.97
Abbvie INC. 10 $300.15
Regeneron Healthcare Solutions, INC. 9 $276.30
Apellis Pharmaceuticals, INC. 7 $204.20
Harrow Eye, LLC 2 $165.17
Alcon Vision LLC 1 $147.81
Regeneron Pharmaceuticals, INC. 1 $142.83
Glaukos Corporation 1 $125.00
Amgen INC. 1 $109.54
Bausch & Lomb Americas INC. 1 $104.17
Alimera Sciences, INC. 4 $98.81
Genentech USA, INC. 3 $82.47
Ocular Therapeutix, INC. 2 $57.52

By nature of payment

Consulting Fee
$2,382
Food and Beverage
$2,200

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
830
Patients
444
Total drug cost
$116,505
Drug Type Claims Patients Total cost
Prednisolone Acetate Generic 104 77 $5,922
Erythromycin (Erythromycin Base) Brand 92 64 $1,027
Latanoprost Generic 86 32 $1,374
Atropine Sulfate Generic 67 57 $4,140
Brimonidine Tartrate Generic 63 28 $2,259
Dorzolamide-Timolol (Dorzolamide Hcl/Timolol Maleat) Brand 63 31 $1,362
Ketorolac Tromethamine Generic 61 22 $1,248
Moxifloxacin (Moxifloxacin Hcl) Brand 50 38 $1,768
Timolol Maleate Generic 50 22 $612
Difluprednate Generic 47 14 $7,961

Frequently asked questions

Auto-generated from federal data
What is Dr. Alessandro Castellarin's medical specialty?
Dr. Alessandro Castellarin practices Retina Specialist (Ophthalmology) Physician in Santa Barbara, CA.
Where does Dr. Alessandro Castellarin practice?
Dr. Alessandro Castellarin practices at 525 E Micheltorena St Ste A, Santa Barbara, CA 931034211. Office phone: 8059631648.
What is Dr. Alessandro Castellarin's NPI?
Dr. Alessandro Castellarin's National Provider Identifier (NPI) is 1689773244, issued by NPPES.
Does Dr. Alessandro Castellarin accept Medicare assignment?
Yes. Dr. Alessandro Castellarin accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Alessandro Castellarin commonly perform?
Top Medicare-reported procedures in 2023: Injection, faricimab-svoa, 0.1 mg (HCPCS J2777); Injection, ranibizumab-eqrn (cimerli), biosimilar, 0.1 mg (HCPCS Q5128); Imaging of retina (HCPCS 92134). Source: CMS Medicare Physician & Other Practitioners file.