Healthcare provider profile · identity verified

Evan James Allan, M,D.

Allopathic & Osteopathic Physicians|Ophthalmology · OKLAHOMA CITY, OK · NPI 1285951145

Profile state: payments and partd Open Payments: 2025 Medicare Part D: 2024 Last identity check: 2026-08-10 Page data build: 2026-08-12

Verified facts

What the public records show

CMS Open Payments records show Evan James Allan, M,D. received $1,846.41 in general payments during 2025 across 14 reported records.

Glaukos Corporation accounted for 80.9% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 9 associated products.

ABBVIE INC. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported LUMIGAN as an associated drug or biological on 25016 records involving 7645 distinct recipient NPIs. Public Medicare Part D data also shows 51 claims for Lumigan by this doctor in 2024.

Alcon Vision LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported Rhopressa as an associated drug or biological on 1524 records involving 961 distinct recipient NPIs. Public Medicare Part D data also shows 38 claims for Rhopressa by this doctor in 2024.

Alcon Vision LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported Rocklatan as an associated drug or biological on 12237 records involving 5351 distinct recipient NPIs. Public Medicare Part D data also shows 13 claims for Rocklatan by this doctor in 2024.

Alcon Vision LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported Simbrinza as an associated drug or biological on 1563 records involving 637 distinct recipient NPIs. Public Medicare Part D data also shows 32 claims for Simbrinza by this doctor in 2024.

These records do not establish that a payment influenced prescribing or medical care.

Payment overview · 2025

General Payments

$1,846.41

14 reported records · 7 companies

Separate record types

Research & Ownership

Research Payments (direct recipient): not present in the loaded data

Associated Research Funding (for example, named PI): not present in the loaded data

Ownership / Investment: not present in the loaded data

These categories are never added into the General Payments headline. Associated research funding must not be described as money the doctor personally received unless the source record supports that conclusion.

Who paid this doctor?

Companies in 2025 General Payments

Reported companyCanonical companyAmountShareRecordsYear
Glaukos Corporation Unresolved — no canonical attribution shown $1,492.9980.9%32025
Regeneron Healthcare Solutions, Inc. Unresolved — no canonical attribution shown $145.427.9%22025
Alcon Vision LLC Unresolved — no canonical attribution shown $84.234.6%42025
Astellas Pharma US Inc Unresolved — no canonical attribution shown $47.662.6%22025
SUN PHARMACEUTICAL INDUSTRIES INC. Unresolved — no canonical attribution shown $29.611.6%12025
ABBVIE INC. Unresolved — no canonical attribution shown $26.891.5%12025
Genentech USA, Inc. Unresolved — no canonical attribution shown $19.611.1%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Consulting Fee$1,400.001
Food and Beverage$446.4113

A meal, consulting fee, royalty, and travel payment describe different kinds of reported relationships and should not be interpreted as equivalent.

Analysis 1 · Payment-linked products

Products named in Open Payments records

Reported productTypeReported companyRelated amount*RecordsYear
Travoprost Intraocular Implant - iDose
Normalized: travoprost intraocular implant idose
Drug Glaukos Corporation $1,400.00 1 2025
Source payment records
EYLEA HD
Normalized: eylea hd
Biological Regeneron Healthcare Solutions, Inc. $145.42 2 2025
Source payment records
iDoseTR
Normalized: idosetr
Drug Glaukos Corporation $92.99 2 2025
Source payment records
Clareon
Normalized: clareon
Device Alcon Vision LLC $68.65 3 2025
Source payment records
Izervay
Normalized: izervay
Drug Astellas Pharma US Inc $47.66 2 2025
Source payment records
Cequa
Normalized: cequa
Drug SUN PHARMACEUTICAL INDUSTRIES INC. $29.61 1 2025
Source payment records
DURYSTA
Normalized: durysta
Drug ABBVIE INC. $26.89 1 2025
Source payment records
Vabysmo
Normalized: vabysmo
Drug Genentech USA, Inc. $19.61 1 2025
Source payment records
HYDRUS Microstent
Normalized: hydrus microstent
Device Alcon Vision LLC $15.58 1 2025
Source payment records

* Product-associated amounts are non-additive because one payment record may name more than one product.

These products were named on specific Open Payments records. A named product does not show that the payment influenced treatment or prescribing.

Public prescribing for products named in payments

No exact normalized or approved-alias overlap was found in the loaded Part D year. This does not mean the doctor never prescribed the product.

The presence of the same drug in both datasets does not show that a payment caused or influenced a prescription.

Analysis 2 · Same-company prescribing overlap

Drugs reported in other payments from the same company that also appear in Medicare Part D

This analysis is independent from products named on this doctor’s individual payment records. A row appears only when the exact Open Payments reporting entity paid this doctor, that same reporting entity reported the drug or biological on at least 10 loaded General Payment records involving at least 2 distinct recipient NPIs, and this doctor has the same non-generic brand in public Part D data. This does not mean the company owns or manufactures the drug.

Paying companyPayment yearDrug reported by same entityOpen Payments evidencePart DClaimsBeneficiaries
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 LUMIGAN
open payments reported associated product
CMS Open Payments — General Payments
25016 supporting records · 7645 recipient NPIs · example record 1201352548
Lumigan · 2024
Exact normalized brand match · 1 Part D row
51 13
Alcon Vision LLC
Exact reporting entity; no affiliate inference
2025 Rhopressa
open payments reported associated product
CMS Open Payments — General Payments
1524 supporting records · 961 recipient NPIs · example record 1207357314
Rhopressa · 2024
Exact normalized brand match · 1 Part D row
38 11
Alcon Vision LLC
Exact reporting entity; no affiliate inference
2025 Rocklatan
open payments reported associated product
CMS Open Payments — General Payments
12237 supporting records · 5351 recipient NPIs · example record 1207357016
Rocklatan · 2024
Exact normalized brand match · 1 Part D row
13 suppressed by CMS
Alcon Vision LLC
Exact reporting entity; no affiliate inference
2025 Simbrinza
open payments reported associated product
CMS Open Payments — General Payments
1563 supporting records · 637 recipient NPIs · example record 1207357100
Simbrinza · 2024
Exact normalized brand match · 1 Part D row
32 13

These facts do not show that a payment was for the drug, that the company owns or manufactures the drug, or that a payment caused or influenced prescribing.

Public Medicare Part D data

Provider-and-drug rows loaded for 2024

BrandGenericClaimsBeneficiaries
LatanoprostLatanoprost1103256
Dorzolamide-TimololDorzolamide Hcl/Timolol Maleat550141
Prednisolone AcetatePrednisolone Acetate313212
OfloxacinOfloxacin255213
Ketorolac TromethamineKetorolac Tromethamine254208
Timolol MaleateTimolol Maleate24783
Brimonidine TartrateBrimonidine Tartrate24262
ErythromycinErythromycin Base11884
FluorometholoneFluorometholone9554
Dorzolamide HclDorzolamide Hcl6820
LumiganBimatoprost5113
RhopressaNetarsudil Mesylate3811
Dorzolamide-TimololDorzolamide/Timolol/Pf35suppressed
SimbrinzaBrinzolamide/Brimonidine Tart3213
TravoprostTravoprost31suppressed
Brimonidine Tartrate-TimololBrimonidine Tartrate/Timolol28suppressed
Pilocarpine HclPilocarpine Hcl22suppressed
Neomycin-Polymyxin-DexamethNeomycin/Polymyxin B/Dexametha19suppressed
TafluprostTafluprost/Pf19suppressed
CombiganBrimonidine Tartrate/Timolol18suppressed
MoxifloxacinMoxifloxacin Hcl1612
Doxycycline HyclateDoxycycline Hyclate13suppressed
RocklatanNetarsudil Mesylat/Latanoprost13suppressed
BrinzolamideBrinzolamide12suppressed
AcyclovirAcyclovir11suppressed
RestasisCyclosporine11suppressed
ValacyclovirValacyclovir Hcl11suppressed

Timeline

Payment and prescribing data by year

Open Payments and Medicare Part D may refer to different years. They are shown separately rather than aligned as if they describe the same period.

YearGeneral PaymentsMain payerExplicit productsCompany overlapsPart D coverage
2025 $1,846.41 · 14 records Glaukos Corporation Cequa, Clareon, DURYSTA, EYLEA HD, HYDRUS Microstent, Izervay, Travoprost Intraocular Implant - iDose, Vabysmo, iDoseTR 4
2024 Complete

Questions to ask

Questions you could discuss with your doctor

These are general questions generated from reviewed templates. They are not personalized medical advice.

Sources and limitations

How to read this page

Loaded source releases

DatasetYearPublicationSource
CMS Open Payments — General Payments 2025 2026-06-30 Original source
Medicare Part D Prescribers by Provider and Drug 2024 2026-05-06 Original source
NPPES Data Dissemination V2 current / reference data 2026-08-10 Original source

Methodology version: 2.1

Editorial template version: 2.4

Product contract version: 2.0

Schema version: 0.7.0

Page data build: 2026-08-12T23:34:59.370714+00:00

Publication policy: eligible for indexing after public-launch controls are enabled

Full methodology · Questions & answers · Report a possible error