Diego Arias
Ophthalmology Physician · Los Angeles, CA
Diego Arias is an ophthalmology physician with a practice address in Los Angeles, California, and NPI 1346998093, issued on Mar 11, 2022. Check the license (California A207746, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Diego Arias
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- A207746 CA
Self-reported in NPPES; status is on the state search - Practice location
- 100 Stein Plz, Los Angeles, CA 90095
- Phone
- (310) 825-5000
- Enumerated
- Mar 11, 2022
- Record last updated
- Jul 2, 2026
- Fax
- (310) 825-9246
- Medicare enrollment
- Enrolled (PECOS I20260519002749); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Also registered at 100 Stein Plz
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Diana Abrahamyan, ODOptometrist1538834932
- Reginald Ariyasu, MDOphthalmology Physician1285654939
- William Astle, MDOphthalmology Physician1700808276
- Adrian Au, MDRetina Specialist (Ophthalmology) Physician1124482450
- Saghar Bagheri, MDGlaucoma Specialist (Ophthalmology) Physician1821627399
- Katherine Bergwerk, MDOphthalmology Physician1952323941
Verify Diego Arias in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A207746Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average ophthalmology physician in 2024
227 Medicare Part D claims for 56 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims.
Most prescribed
- Latanoprost65 claims
- Dorzolamide-Timolol31 claims
- Brimonidine Tartrate24 claims
- Vyzulta13 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Diego Arias among 2,899 ophthalmology physician records in California
Diego Arias is one of 2,899 ophthalmology physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 98% of them.
- NPI issued2022 · 98% of these records are older, under 1% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2022 · median 2001 among the 1,907 with a school on file
- Record last updated2026 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in California
There are 2,899 ophthalmology physician records in California.
All 2,899 in California → Every provider in Los Angeles → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Reginald Ariyasu, MDLos Angeles, CA 900951285654939
- Anthony Arnold, MDLos Angeles, CA 900951629098314
- William Astle, MDLos Angeles, CA 900951700808276
- John Bartlett, MDLos Angeles, CA 900951144242611
- Katherine Bergwerk, MDLos Angeles, CA 900951952323941
- Joseph Caprioli, MDLos Angeles, CA 900951417979584
- Sophie Deng, M.D.Los Angeles, CA 900951194775890
- Michael Gorin, MDLos Angeles, CA 900951578536462
Common questions
What is Diego Arias's NPI number?
Diego Arias's National Provider Identifier (NPI) is 1346998093, issued on Mar 11, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Diego Arias located?
The NPPES record lists a practice address at 100 Stein Plz, Los Angeles, CA, 90095. Phone: (310) 825-5000. Providers update this record themselves, so call before visiting.
How can I verify Diego Arias's license?
NPPES lists California license number A207746, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Diego Arias prescribe under Medicare Part D?
In 2024, Diego Arias had 227 Medicare Part D claims for 56 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.