Stephen Dinsmore, M.D.
NPI 1891906707 · Ophthalmology Physician · Torrance, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Dinsmore, M.D. is a Ophthalmology Physician provider in Torrance, CA (NPI 1891906707).
Provider details
- NPI number
- 1891906707
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- WG32005 (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
19 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
1,469 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 Complete Exam of Visual System92014 | 545 | $144 |
| Exam of Visual Field With Extended Testing92083 | 258 | $74 |
| Imaging of Retina92134 | 194 | $44 |
| Imaging of Optic Nerve92133 | 125 | $39 |
| Established Patient Problem Focused Exam of Visual System92012 | 118 | $103 |
| Photography of the Retina92250 | 101 | $41 |
| Ct Scan of Cornea92025 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 130 | 38 |
| Dorzolamide Hcl | 127 | 53 |
| Latanoprostene Bunodbrand: Vyzulta | 97 | 29 |
| Brimonidine Tartrate | 85 | 23 |
| Timolol Maleate | 69 | 24 |
| Prednisolone Acetate | 59 | 44 |
| Brinzolamide | 54 | 14 |
| Diclofenac Sodium | 36 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$108 across 5 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
- 2007-05-24
- Last updated
- 2011-11-09
Frequently asked questions
- What is Stephen Dinsmore's NPI number?
- Stephen Dinsmore's National Provider Identifier (NPI) is 1891906707, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Dinsmore's specialty?
- Stephen Dinsmore is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Dinsmore located?
- Stephen Dinsmore's practice location on file with NPPES is 19000 Hawthorne Blvd, Torrance, CA 90503-1517.
- What is Stephen Dinsmore's phone number?
- The practice phone number listed in the NPPES registry for Stephen Dinsmore is (310) 370-3628.
- Does Stephen Dinsmore accept Medicare?
- Stephen Dinsmore is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Dinsmore's NPI active?
- Yes — Stephen Dinsmore's NPI (1891906707) is active in the NPPES registry as of the last update on 2011-11-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.