Douglas Sakamoto, M.D.
NPI 1871566554 · Ophthalmology Physician · Torrance, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Douglas Sakamoto, M.D. is a Ophthalmology Physician provider in Torrance, CA (NPI 1871566554).
Provider details
- NPI number
- 1871566554
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A87145 (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
20 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
5,324 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 Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 1,331 | $98 |
| Established Patient Complete Exam of Visual System92014 | 1,162 | $140 |
| Imaging of Optic Nerve92133 | 727 | $40 |
| Established Patient Problem Focused Exam of Visual System92012 | 681 | $99 |
| Exam of Visual Field With Intermediate Testing92082 | 645 | $53 |
| New Patient Complete Exam of Visual System92004 | 246 | $164 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 27 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 755 | 199 |
| Timolol Maleate | 417 | 130 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 382 | 96 |
| Brimonidine Tartrate | 333 | 91 |
| Prednisolone Acetate | 273 | 185 |
| Bimatoprostbrand: Lumigan | 223 | 55 |
| Dorzolamide Hcl | 186 | 68 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$105 across 6 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
- 2006-02-10
- Last updated
- 2022-08-05
- Certified
- 2022-08-05
Frequently asked questions
- What is Douglas Sakamoto's NPI number?
- Douglas Sakamoto's National Provider Identifier (NPI) is 1871566554, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Douglas Sakamoto's specialty?
- Douglas Sakamoto is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Douglas Sakamoto located?
- Douglas Sakamoto's practice location on file with NPPES is 23609 Hawthorne Blvd Ste a, Torrance, CA 90505-6023.
- What is Douglas Sakamoto's phone number?
- The practice phone number listed in the NPPES registry for Douglas Sakamoto is (310) 378-7474.
- Does Douglas Sakamoto accept Medicare?
- Douglas Sakamoto is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Douglas Sakamoto's NPI active?
- Yes — Douglas Sakamoto's NPI (1871566554) is active in the NPPES registry as of the last update on 2022-08-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.