Medicare Enrolled
Dr. Michael Sumsion, MD
Ophthalmology · Redding, CA
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
Low-engagement
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating.
This page presents federal public records about Dr. Sumsion from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
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What this data tells you about Dr. Sumsion
Dr. Michael Sumsion is an ophthalmology specialist in Redding, CA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Sumsion performed 20,631 Medicare services across 9,912 unique beneficiaries.
Between the years covered by Open Payments, Dr. Sumsion received a total of $2,874 from 28 pharmaceutical and/or device companies across 145 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in ophthalmology. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Sumsion is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
✓ 19 years in practice
▲ Top 5% volume in CA
$2,874 industry payments
Medicare Practice Summary
Medicare Utilization ↗20,631
Medicare services
Top 5% in CA for ophthalmology
9,912
Unique beneficiaries
$150
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~1,086 Medicare services per year of practice
Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Retinal imaging (OCT scan) This procedure involves imaging the retina to visualize its structure. It is used to examine the back of the eye. |
3,234 | $31 | $72 |
| Aflibercept eye injection (Eylea) | 2,530 | $690 | $1,570 |
| Immunoassay substance analysis, multiple step method A laboratory test that uses an immunoassay technique to analyze a substance. The process involves multiple steps to detect or measure the target material. |
2,026 | $11 | $25 |
| Microfluid analysis of tears A laboratory test that analyzes tear fluid using microfluidic technology to measure specific biomarkers. This procedure helps evaluate the composition of tears for diagnostic purposes. |
2,005 | $22 | $35 |
| Eye injection for retinal disease A procedure involving the administration of medication directly into the eye. |
1,489 | $95 | $608 |
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
1,378 | $96 | $220 |
| Comprehensive eye exam, established patient A comprehensive examination of the visual system performed for a patient who has previously been seen by the provider. |
1,160 | $84 | $215 |
| Pegcetacoplan intravitreal injection, 1 mg An injection of pegcetacoplan administered into the vitreous humor of the eye. The dose specified is 1 milligram. |
1,155 | $120 | $318 |
| Eye photography Photographic imaging of the interior structures of the eye. |
920 | $16 | $45 |
| Visual field test, extended A test that maps your complete field of vision to detect blind spots or peripheral vision loss. Extended testing provides a more detailed assessment than a standard visual field exam. |
645 | $46 | $111 |
| Optic nerve imaging (OCT scan) Imaging of the optic nerve. |
642 | $26 | $65 |
| Eye exam, established patient, focused A limited examination of the visual system for an existing patient. The provider focuses on a specific eye-related concern or symptom. |
521 | $64 | $155 |
| Corneal topography and eye depth measurement This procedure measures the curvature and depth of the cornea, the clear front surface of the eye. |
443 | $30 | $101 |
| New patient office visit (45-59 min) An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter. |
401 | $105 | $280 |
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
311 | $67 | $155 |
| Cataract surgery with lens implant Surgical removal of the clouded natural lens of the eye and replacement with an artificial prosthetic lens to restore vision. |
264 | $436 | $2,088 |
| Eye drainage system examination An examination of the internal drainage system of the eye to assess how fluid flows and drains from the eye. |
258 | $23 | $50 |
| Retinal photography (fundus photo) This procedure involves taking photographs of the retina, the light-sensitive tissue at the back of the eye. It is used to document the condition of the eye's interior structures. |
175 | $29 | $114 |
| Dexamethasone intravitreal implant injection An injection of a dexamethasone implant placed inside the eye. This procedure delivers medication directly into the vitreous cavity of the eye. |
175 | $157 | $320 |
| Laser removal of recurring cataract A laser procedure to remove a recurring cataract within the lens capsule. |
161 | $273 | $570 |
| Slit lamp examination of the eye This procedure uses a specialized microscope to examine the front portion of the eye. |
159 | $27 | $130 |
| Retinal angiography with dye injection This procedure uses a special camera to examine the blood vessels in the retina after a dye has been injected into the body. |
138 | $110 | $210 |
| Complex cataract removal with lens implant A surgical procedure to remove a cataract from the eye and insert an artificial lens to restore vision. |
126 | $607 | $2,094 |
| Unclassified drug A medication that does not fit into standard HCPCS or CPT classification categories. |
110 | $1,765 | $3,559 |
| Ultrasound scan of cornea to determine thickness An ultrasound procedure used to measure the thickness of the cornea. |
76 | $9 | $27 |
| CT scan of cornea A computed tomography scan used to create detailed images of the cornea, the clear front part of the eye. |
42 | $25 | $65 |
| Contact lens fitting for eye surface disease This procedure involves the fitting of a contact lens specifically intended to treat or manage a disease affecting the surface of the eye. |
28 | $30 | $64 |
| Eyelash removal with forceps This procedure involves the manual removal of eyelashes using forceps. It is a mechanical extraction method performed on the eyelid area. |
17 | $14 | $70 |
| Ultrasound of eye tissue and structures A diagnostic imaging test that uses sound waves to create pictures of the eye's internal tissues and structures. |
16 | $36 | $130 |
| Tear duct plug insertion A procedure to insert a small plug into the tear duct opening to help retain tears on the eye surface. |
14 | $157 | $419 |
| Visual field test, intermediate A test that measures your side vision to check for blind spots or other vision changes. |
12 | $33 | $83 |
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. A higher procedure volume generally indicates more experience with that procedure.
1.3% high complexity
46.0% medium
52.7% routine
Industry Payment Transparency
Open Payments through 2024 ↗$2,874
Total received (2018-2024)
Avg $411/year across 7 years
Top 35% in CA for ophthalmology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
28
Companies
145
Individual payments
All payments are legal and publicly reported · Not evidence of wrongdoing · How to interpret →
Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$2,874 (100.0%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$790
2023
$683
2022
$668
2021
$178
2020
$97
2019
$70
2018
$387
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
ABBVIE INC.
$264
Regeneron Healthcare Solutions, Inc.
$115
Mallinckrodt Hospital Products Inc.
$101
Apellis Pharmaceuticals, Inc.
$91
Bausch & Lomb Americas Inc.
$88
BIOTISSUE HOLDINGS INC.
$47
Johnson & Johnson Surgical Vision, Inc.
$36
SUN PHARMACEUTICAL INDUSTRIES INC.
$27
Glaukos Corporation
$20
Top 3 companies account for 60.8% of 2024 payments
All-time payments by company (2018-2024) ›
Bausch & Lomb Americas Inc.
$443
Regeneron Healthcare Solutions, Inc.
$307
ABBVIE INC.
$281
Johnson & Johnson Surgical Vision, Inc.
$232
Apellis Pharmaceuticals, Inc.
$185
EyePoint Pharmaceuticals US, Inc.
$163
Shire North American Group Inc
$152
Mallinckrodt Hospital Products Inc.
$144
Novartis Pharmaceuticals Corporation
$99
SUN PHARMACEUTICAL INDUSTRIES INC.
$93
Carl Zeiss Meditec, Inc.
$87
BioTissue Holdings, Inc.
$74
Allergan, Inc.
$62
AbbVie Inc.
$60
Genentech USA, Inc.
$55
NEW WORLD MEDICAL,INC.
$49
BIOTISSUE HOLDINGS INC.
$47
Alimera Sciences, Inc.
$46
Glaukos Corporation
$46
Sun Pharmaceutical Industries Inc.
$40
Carl Zeiss Meditec AG
$39
Allergan Inc.
$34
BIOTISSUE HOLDINGS, INC.
$33
TISSUETECH, INC.
$32
TissueTech, Inc.
$18
GLAUKOS CORPORATION
$18
Astellas Pharma US Inc
$17
Dompe US, Inc.
$16
Top 3 companies account for 35.9% of all-time payments
Associated products mentioned in payments ›
ACTHAR · Ahmed Glaucoma Valve · CEQUA · Cequa · DEXYCU · DURYSTA · EYLEA · EYLEA HD · ILUVIEN · IOLMaster 700 · ISTENT INJECT W · LOTEMAX SM · LUMIGAN · Lucentis · MIEBO · None Specified · OXERVATE · OZURDEX · PROKERA · PROLENSA · Prokera · RESTASIS · Syfovre · TECNIS IOL · Tecnis 1-piece IOL · Tecnis IOL · VABYSMO · VERITAS Vision System · VYZULTA · VisuMax · XIIDRA · Xelpros · YUTIQ · iStent Trabecular Micro-Bypass System Model iS3 · iStent infinite Trabecular Micro-Bypass System Model iS3
Should you be concerned? Payments from pharmaceutical and device companies are legal and common — 57% of U.S. physicians receive at least one. They often reflect legitimate consulting, research, or education. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →
Most payments (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Ophthalmologists within 10 mi
12
Per 100K population
6.6
County median income
$71,931
Nearest hospital
MERCY MEDICAL CENTER REDDING
0.0 mi
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Sumsion is a mixed practice specialist, with above-average Medicare volume (top 5% in CA), with low-engagement industry engagement, with 19 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Sumsion experienced with retinal imaging (oct scan)?
Based on Medicare claims data, Dr. Sumsion performed 3,234 retinal imaging (oct scan) services. Research suggests that higher procedure volume is often associated with better outcomes, particularly for complex procedures. Note that Medicare data only captures patients aged 65 and older, so the total practice volume across all patients is likely higher.
Does Dr. Sumsion receive payments from pharmaceutical companies?
Yes. Dr. Sumsion received a total of $2,874 from 28 companies across 145 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common among physicians — 57% of all U.S. physicians receive at least one industry payment. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Sumsion's costs compare to other ophthalmologists in Redding?
Dr. Sumsion's average Medicare payment per service is $150. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Sumsion) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating a long track record of practice, Medicare participation, and industry disclosure. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Each data source has its own update cycle. Provider registry data (NPPES) is updated weekly. Medicare enrollment (PECOS) is updated monthly. Medicare practice data has a ~2 year lag — the most recent available is typically 2 years prior. Industry payment data (Open Payments) is published annually, usually in June, covering the prior calendar year. We display the data date prominently on each section so you always know how current it is. See our data freshness policy →
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About this page
All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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