Douglas Matsunaga
NPI 1821450818 · Ophthalmology Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Douglas Matsunaga is a Ophthalmology Physician provider in Los Angeles, CA (NPI 1821450818).
Provider details
- NPI number
- 1821450818
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- Yes
- License
- A168505 (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
10 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
2,783 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 | 1,165 | $43 |
| Established Patient Complete Exam of Visual System92014 | 930 | $136 |
| Injection of Drug Into Eye67028 | 476 | $132 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 85 | $179 |
| Extended Exam of the Back Part of the Eye With Retinal Drawing92201 | 30 | $27 |
| Established Patient Problem Focused Exam of Visual System92012 | 25 | $96 |
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 | 147 | 92 |
| Latanoprost | 92 | 31 |
| Ketorolac Tromethamine | 61 | 30 |
| Brimonidine Tartrate | 51 | 21 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 44 | 25 |
| Ofloxacin | 38 | 34 |
| Moxifloxacin Hclbrand: Moxifloxacin | 27 | 20 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$708 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
Additional practice locations (2)
- 9001 Wilshire Blvd Ste 301Beverly Hills, CA 90211-1841Phone: (310) 854-6201Fax: (213) 975-9118
- 3400 Lomita Blvd Ste 202Torrance, CA 90505-4914Phone: (310) 891-1000Fax: (213) 975-9118
Registry dates
- Enumerated
- 2016-03-28
- Last updated
- 2026-02-16
- Certified
- 2026-02-16
Frequently asked questions
- What is Douglas Matsunaga's NPI number?
- Douglas Matsunaga's National Provider Identifier (NPI) is 1821450818, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Douglas Matsunaga's specialty?
- Douglas Matsunaga is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Douglas Matsunaga located?
- Douglas Matsunaga's practice location on file with NPPES is 1245 Wilshire Blvd Ste 380, Los Angeles, CA 90017-4886.
- What is Douglas Matsunaga's phone number?
- The practice phone number listed in the NPPES registry for Douglas Matsunaga is (213) 483-8810.
- Does Douglas Matsunaga accept Medicare?
- Douglas Matsunaga is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Douglas Matsunaga's NPI active?
- Yes — Douglas Matsunaga's NPI (1821450818) is active in the NPPES registry as of the last update on 2026-02-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.