Healthcare provider profile · identity verified

Michael A Sumsion, MD

Allopathic & Osteopathic Physicians|Ophthalmology · REDDING, CA · NPI 1699725507

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 Michael A Sumsion, MD received $1,593.89 in general payments during 2025 across 47 reported records.

ABBVIE INC. accounted for 14.8% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 20 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Lumigan, Rocklatan, Vyzulta.

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 196 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 Rocklatan as an associated drug or biological on 12237 records involving 5351 distinct recipient NPIs. Public Medicare Part D data also shows 19 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 14 claims for Simbrinza by this doctor in 2024.

Bausch & Lomb Americas 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 MIEBO as an associated drug or biological on 34133 records involving 12967 distinct recipient NPIs. Public Medicare Part D data also shows 20 claims for Miebo by this doctor in 2024.

Bausch & Lomb Americas 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 VYZULTA as an associated drug or biological on 10850 records involving 5317 distinct recipient NPIs. Public Medicare Part D data also shows 35 claims for Vyzulta by this doctor in 2024.

Bausch & Lomb Americas 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 XIIDRA as an associated drug or biological on 28163 records involving 11019 distinct recipient NPIs. Public Medicare Part D data also shows 20 claims for Xiidra by this doctor in 2024.

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

Payment overview · 2025

General Payments

$1,593.89

47 reported records · 13 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
ABBVIE INC. Unresolved — no canonical attribution shown $236.6514.8%92025
Alcon Vision LLC Unresolved — no canonical attribution shown $205.8512.9%42025
BIOTISSUE HOLDINGS INC. Unresolved — no canonical attribution shown $194.7012.2%42025
Astellas Pharma US Inc Unresolved — no canonical attribution shown $183.1711.5%62025
NEW WORLD MEDICAL,INC. Unresolved — no canonical attribution shown $160.8510.1%12025
Mallinckrodt Hospital Products Inc. Unresolved — no canonical attribution shown $151.459.5%82025
Carl Zeiss Meditec USA, Inc. Unresolved — no canonical attribution shown $126.447.9%12025
Bausch & Lomb Americas Inc. Unresolved — no canonical attribution shown $89.355.6%52025
Apellis Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $79.855.0%32025
Regeneron Healthcare Solutions, Inc. Unresolved — no canonical attribution shown $58.893.7%22025
Tarsus Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $39.022.5%12025
Dompe US, Inc. Unresolved — no canonical attribution shown $35.552.2%22025
Genentech USA, Inc. Unresolved — no canonical attribution shown $32.122.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$1,593.8947

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
DURYSTA
Normalized: durysta
Drug ABBVIE INC. $200.55 6 2025
Source payment records
Izervay
Normalized: izervay
Drug Astellas Pharma US Inc $183.17 6 2025
Source payment records
Ahmed Glaucoma Valve
Normalized: ahmed glaucoma valve
Device NEW WORLD MEDICAL,INC. $160.85 1 2025
Source payment records
Clearpath
Normalized: clearpath
Device NEW WORLD MEDICAL,INC. $160.85 1 2025
Source payment records
Kahook Dual Blade
Normalized: kahook dual blade
Device NEW WORLD MEDICAL,INC. $160.85 1 2025
Source payment records
Streamline
Normalized: streamline
Device NEW WORLD MEDICAL,INC. $160.85 1 2025
Source payment records
Via360
Normalized: via360
Device NEW WORLD MEDICAL,INC. $160.85 1 2025
Source payment records
ACTHAR
Normalized: acthar
Biological Mallinckrodt Hospital Products Inc. $151.45 8 2025
Source payment records
Rocklatan
Normalized: rocklatan
Drug Alcon Vision LLC $149.25 2 2025
Source payment records
VERACITY SURGICAL
Normalized: veracity surgical
Device Carl Zeiss Meditec USA, Inc. $126.44 1 2025
Source payment records
Rhopressa
Normalized: rhopressa
Drug Alcon Vision LLC $120.89 1 2025
Source payment records
VYZULTA
Normalized: vyzulta
Drug Bausch & Lomb Americas Inc. $89.35 5 2025
Source payment records
Syfovre
Normalized: syfovre
Drug Apellis Pharmaceuticals, Inc. $79.85 3 2025
Source payment records
EYLEA HD
Normalized: eylea hd
Biological Regeneron Healthcare Solutions, Inc. $58.89 2 2025
Source payment records
TRYPTYR
Normalized: tryptyr
Drug Alcon Vision LLC $56.60 2 2025
Source payment records
XDEMVY
Normalized: xdemvy
Drug Tarsus Pharmaceuticals, Inc. $39.02 1 2025
Source payment records
LUMIGAN
Normalized: lumigan
Drug ABBVIE INC. $36.10 3 2025
Source payment records
OXERVATE
Normalized: oxervate
Drug Dompe US, Inc. $35.55 2 2025
Source payment records
Vabysmo
Normalized: vabysmo
Drug Genentech USA, Inc. $32.12 1 2025
Source payment records
XEN GLAUCOMA TREATMENT SYSTEM
Normalized: xen glaucoma treatment system
Device ABBVIE INC. $21.85 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

Open Payments productPayment yearPart D brandPart D yearClaimsMatch methodSource
LUMIGAN
lumigan
2025 Lumigan 2024 196 exact normalized Medicare Part D
Rocklatan
rocklatan
2025 Rocklatan 2024 19
Beneficiary count suppressed
exact normalized Medicare Part D
VYZULTA
vyzulta
2025 Vyzulta 2024 35
Beneficiary count suppressed
exact normalized Medicare Part D

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
196 55
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
19 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
14 suppressed by CMS
Bausch & Lomb Americas Inc.
Exact reporting entity; no affiliate inference
2025 MIEBO
open payments reported associated product
CMS Open Payments — General Payments
34133 supporting records · 12967 recipient NPIs · example record 1254730224
Miebo · 2024
Exact normalized brand match · 1 Part D row
20 suppressed by CMS
Bausch & Lomb Americas Inc.
Exact reporting entity; no affiliate inference
2025 VYZULTA
open payments reported associated product
CMS Open Payments — General Payments
10850 supporting records · 5317 recipient NPIs · example record 1254730226
Vyzulta · 2024
Exact normalized brand match · 1 Part D row
35 suppressed by CMS
Bausch & Lomb Americas Inc.
Exact reporting entity; no affiliate inference
2025 XIIDRA
open payments reported associated product
CMS Open Payments — General Payments
28163 supporting records · 11019 recipient NPIs · example record 1254730224
Xiidra · 2024
Exact normalized brand match · 1 Part D row
20 suppressed by CMS

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
Timolol MaleateTimolol Maleate21871
LatanoprostLatanoprost21059
LumiganBimatoprost19655
Prednisolone AcetatePrednisolone Acetate14179
OfloxacinOfloxacin9767
Ketorolac TromethamineKetorolac Tromethamine9563
Dorzolamide-TimololDorzolamide Hcl/Timolol Maleat6916
CombiganBrimonidine Tartrate/Timolol5016
AcyclovirAcyclovir44suppressed
Alphagan PBrimonidine Tartrate38suppressed
Brimonidine TartrateBrimonidine Tartrate3717
Brimonidine Tartrate-TimololBrimonidine Tartrate/Timolol3514
VyzultaLatanoprostene Bunod35suppressed
TravoprostTravoprost34suppressed
MieboPerfluorohexyloctane/Pf20suppressed
ValacyclovirValacyclovir Hcl20suppressed
XiidraLifitegrast20suppressed
RocklatanNetarsudil Mesylat/Latanoprost19suppressed
CyclosporineCyclosporine18suppressed
Dorzolamide HclDorzolamide Hcl14suppressed
SimbrinzaBrinzolamide/Brimonidine Tart14suppressed
Pred MildPrednisolone Acetate12suppressed
RestasisCyclosporine12suppressed
FluorometholoneFluorometholone11suppressed

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 $1,593.89 · 47 records ABBVIE INC. ACTHAR, Ahmed Glaucoma Valve, Clearpath, DURYSTA, EYLEA HD, Izervay, Kahook Dual Blade, LUMIGAN, OXERVATE, Rhopressa, Rocklatan, Streamline, Syfovre, TRYPTYR, VERACITY SURGICAL, VYZULTA, Vabysmo, Via360, XDEMVY, XEN GLAUCOMA TREATMENT SYSTEM 6
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