Brian Larsen, M.D.
NPI 1083871974 · Retina Specialist (Ophthalmology) Physician · Lombard, IL
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brian Larsen, M.D. is a Retina Specialist (Ophthalmology) Physician provider in Lombard, IL (NPI 1083871974).
Provider details
- NPI number
- 1083871974
- Entity type
- Individual
- Primary specialty
- Retina Specialist (Ophthalmology) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 036129978 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 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
6,867 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 | 2,999 | $41 |
| Injection of Drug Into Eye67028 | 2,207 | $128 |
| Established Patient Complete Exam of Visual System92014 | 1,394 | $126 |
| New Patient Complete Exam of Visual System92004 | 125 | $151 |
| Photography of the Retina92250 | 32 | $36 |
| Unclassified BiologicsJ3590 | 27 | $2,483 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 125 | 44 |
| Prednisolone Acetate | 56 | 42 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 48 | 15 |
| Bromfenac Sodiumbrand: Prolensa | 34 | — |
| Erythromycin Basebrand: Erythromycin | 30 | 26 |
| Timolol Maleate | 28 | — |
| Moxifloxacin Hclbrand: Moxifloxacin | 25 | 25 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$7,829 across 31 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
- 2008-05-19
- Last updated
- 2026-06-04
- Certified
- 2026-06-04
Frequently asked questions
- What is Brian Larsen's NPI number?
- Brian Larsen's National Provider Identifier (NPI) is 1083871974, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brian Larsen's specialty?
- Brian Larsen is listed in the NPPES registry with a primary specialty of Retina Specialist (Ophthalmology) Physician (Allopathic & Osteopathic Physicians).
- Where is Brian Larsen located?
- Brian Larsen's practice location on file with NPPES is 477 E Butterfield Rd Ste 105, Lombard, IL 60148-5622.
- What is Brian Larsen's phone number?
- The practice phone number listed in the NPPES registry for Brian Larsen is (773) 943-7425.
- Does Brian Larsen accept Medicare?
- Brian Larsen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Brian Larsen's NPI active?
- Yes — Brian Larsen's NPI (1083871974) is active in the NPPES registry as of the last update on 2026-06-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.