Dr. Thomas K. Marsh
- Gender: Male
- Experience: 46 years
- Sole propriator: No
- NPI: 1578556239
Dr. Thomas K. Marsh O.D.
Optometrist
He is located at 1280 Summit Avenue in Oconomowoc, WI 53066. Can help patients with the following: Blepharitis, Cataracts, Contact Lens Prescription and Fitting, Crossed Eyes, Eyeglasses Fitting and Prescription, Macular Degeneration. His National Provider Identifier (NPI) number is 1578556239. Appointment can be made via the phone number (262) 567-3214. He is affiliated with 1 practices.
Conditions treated
Dr. Thomas K. Marsh, being an optometrist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. Thomas K. Marsh.
- Astigmatism
- Binocular Dysfunction (BVD)
- Blepharitis
- Blindness
- Cataracts
- Color Blindness
- Contact Lens Prescription and Fitting
- Crossed Eyes
- Diabetic Retinopathy
- Dry Eyes
- Esotropia
- Exotropia
- Eye Allergy
- Eye Floaters
- Eye Strain
- Eyeglasses Fitting and Prescription
- Farsightedness
- Glaucoma
- Hypertropia
- Lazy Eye
- Macular Degeneration
- Nearsightedness
- Oculomotor Dysfunction
- Pink Eye
- Presbyopia
- Retinal Imaging
- Sty
Procedures Performed by Dr. Thomas K. Marsh
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Thomas K. Marsh as in-network for the following 2026 plans.
Health plans
Dean Health Plan
Network data as of Aug 13, 2026, as reported by the insurer.
Show all 9 plans from Dean Health Plan
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Dean Bronze $0 Copay PCP Visits | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Dean Bronze Share | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Dean Expanded Bronze Standard | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Dean Gold HSA | HMO · Gold | Preferred | Accepting new patients |
| Dean Gold Share | HMO · Gold | Preferred | Accepting new patients |
| Dean Gold Standard | HMO · Gold | Preferred | Accepting new patients |
| Dean Silver $0 Copay PCP Visits | HMO · Silver | Preferred | Accepting new patients |
| Dean Silver Share | HMO · Silver | Preferred | Accepting new patients |
| Dean Silver Standard | HMO · Silver | Preferred | Accepting new patients |
Network Health
Network data as of Jan 12, 2026, as reported by the insurer.
Show all 14 plans from Network Health
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Prestige Bronze $0 Medical Deductible (2 plan variants) | HMO · Expanded Bronze | Signatureprestigebronzezeromedicaldeductible | Accepting new patients |
| Prestige Bronze $0 Medical Deductible + Dental + Vision | HMO · Expanded Bronze | Signatureprestigebronzezeromedicaldeductibledv | Accepting new patients |
| Prestige Bronze $0 Medical Deductible + Dental +Vision | HMO · Expanded Bronze | Signatureprestigebronzezeromedicaldeductibledv | Accepting new patients |
| Prestige Bronze Essential + 3 Free PCP Visits | HMO · Expanded Bronze | Prestigebronzeessential | Accepting new patients |
| Prestige Bronze Essential + Dental + Vision + 3 Free PCP Visits | HMO · Expanded Bronze | Prestigebronzeessentialdv | Accepting new patients |
| Prestige Bronze Plus | HMO · Expanded Bronze | Prestigebronzeplus | Accepting new patients |
| Prestige Gold | HMO · Gold | Prestigegold | Accepting new patients |
| Prestige Gold 50 + 1 Free PCP Visit | HMO · Gold | Prestigegoldfifty | Accepting new patients |
| Prestige Gold 50 + Dental + Vision+ 1 Free PCP Visit | HMO · Gold | Prestigegoldfiftydv | Accepting new patients |
| Prestige Gold Essential + 3Free PCP Visits | HMO · Gold | Prestigegoldessential | Accepting new patients |
| Prestige Gold Essential + Dental + Vision + 3 Free PCP Visits | HMO · Gold | Prestigegoldessentialdv | Accepting new patients |
| Prestige Silver | HMO · Silver | Prestigesilver | Accepting new patients |
| Prestige Silver Essential + 3 Free PCP Visits | HMO · Silver | Prestigesilveressential | Accepting new patients |
| Prestige Silver Essential + Dental + Vision + 3 Free PCP Visits | HMO · Silver | Prestigesilveressentialdv | Accepting new patients |
Security Health Plan
Network data as of Aug 19, 2026, as reported by the insurer.
Show all 47 plans from Security Health Plan
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Premier $2,000 - 25% | HMO · Gold | Non Preferred | Accepting new patients |
| Premier $2,000 - 25% | HMO · Gold | Preferred | Accepting new patients |
| Premier $3,500 - 30% | HMO · Gold | Non Preferred | Accepting new patients |
| Premier $3,500 - 30% | HMO · Gold | Preferred | Accepting new patients |
| Premier $4,000 - 50% | HMO · Silver | Non Preferred | Accepting new patients |
| Premier $4,000 - 50% | HMO · Silver | Preferred | Accepting new patients |
| Premier $5,000 HDHP | HMO · Silver | Non Preferred | Accepting new patients |
| Premier $5,000 HDHP | HMO · Silver | Preferred | Accepting new patients |
| Premier $6,000 - 40% | HMO · Silver | Non Preferred | Accepting new patients |
| Premier $6,000 - 40% | HMO · Silver | Preferred | Accepting new patients |
| Premier $7,500 | HMO · Expanded Bronze | Non Preferred | Accepting new patients |
| Premier $7,500 | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Premier $7,500 HDHP | HMO · Expanded Bronze | Non Preferred | Accepting new patients |
| Premier $7,500 HDHP | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Premier HMO $1,500 - 30% | HMO · Gold | Preferred | Accepting new patients |
| Premier HMO $2,500 - 20% Copay | HMO · Gold | Preferred | Accepting new patients |
| Premier HMO $3,400 - 30% HDHP | HMO · Silver | Preferred | Accepting new patients |
| Premier HMO $3,500 - 30% | HMO · Silver | Preferred | Accepting new patients |
| Premier HMO $3,500 HDHP | HMO · Gold | Preferred | Accepting new patients |
| Premier HMO $4,000 - 20% HDHP | HMO · Silver | Preferred | Accepting new patients |
| Premier HMO $5,000 - 20% HDHP | HMO · Silver | Preferred | Accepting new patients |
| Premier HMO $5,500 - 40% Copay | HMO · Silver | Preferred | Accepting new patients |
| Premier HMO $7,500 HDHP | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Premier HMO $750 - 10% | HMO · Platinum | Preferred | Accepting new patients |
| Premier HMO $9,500 | HMO · Bronze | Preferred | Accepting new patients |
| Premier POS $1,500 - 30% | POS · Gold | Non Preferred | Accepting new patients |
| Premier POS $1,500 - 30% | POS · Gold | Preferred | Accepting new patients |
| Premier POS $2,500 - 20% Copay | POS · Gold | Non Preferred | Accepting new patients |
| Premier POS $2,500 - 20% Copay | POS · Gold | Preferred | Accepting new patients |
| Premier POS $3,400 - 30% HDHP | POS · Silver | Non Preferred | Accepting new patients |
| Premier POS $3,400 - 30% HDHP | POS · Silver | Preferred | Accepting new patients |
| Premier POS $3,500 - 30% | POS · Silver | Non Preferred | Accepting new patients |
| Premier POS $3,500 - 30% | POS · Silver | Preferred | Accepting new patients |
| Premier POS $3,500 HDHP | POS · Gold | Non Preferred | Accepting new patients |
| Premier POS $3,500 HDHP | POS · Gold | Preferred | Accepting new patients |
| Premier POS $4,000 - 20% HDHP | POS · Silver | Non Preferred | Accepting new patients |
| Premier POS $4,000 - 20% HDHP | POS · Silver | Preferred | Accepting new patients |
| Premier POS $5,000 - 20% HDHP | POS · Silver | Non Preferred | Accepting new patients |
| Premier POS $5,000 - 20% HDHP | POS · Silver | Preferred | Accepting new patients |
| Premier POS $5,500 - 40% Copay | POS · Silver | Non Preferred | Accepting new patients |
| Premier POS $5,500 - 40% Copay | POS · Silver | Preferred | Accepting new patients |
| Premier POS $7,500 HDHP | POS · Expanded Bronze | Non Preferred | Accepting new patients |
| Premier POS $7,500 HDHP | POS · Expanded Bronze | Preferred | Accepting new patients |
| Premier POS $750 - 10% | POS · Platinum | Non Preferred | Accepting new patients |
| Premier POS $750 - 10% | POS · Platinum | Preferred | Accepting new patients |
| Premier POS $9,500 | POS · Bronze | Non Preferred | Accepting new patients |
| Premier POS $9,500 | POS · Bronze | Preferred | Accepting new patients |
This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Dr. Thomas K. Marsh is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.
Medicare Enrollment
Dr. Thomas K. Marsh is enrolled to bill Medicare as a Practitioner - Optometry .
Bills through: Thomas K. Marsh, Odsc
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Payments received
Drug payment
| Coopervision | $11 |
| Valeant Pharmaceuticals North America | $11 |
Other
| Food and Beverage | $22 |
Looking for more Optometrists?
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- Address: 608 Summit Avenue Oconomowoc, 53066, WI
- Gender: Male
- Address: 712 Summit Avenue Oconomowoc, 53066, WI
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- Address: 203 East Wisconsin Avenue Oconomowoc, 53066, WI
- Gender: Female
- Address: 1280 North Summit Avenue Oconomowoc, 53066, WI
- Gender: Male
- Address: 915 Summit Avenue Oconomowoc, 53066, WI
- Gender: Male
- Address: 1280 North Summit Avenue Oconomowoc, 53066, WI
- Gender: Male
- Address: Suite 206 105 East Wisconsin Avenue Oconomowoc, 53066, WI
Questions & Answers
Where can you meet with Dr. Thomas K. Marsh?
Dr. Thomas K. Marsh's office is located at 1280 Summit Avenue in Oconomowoc, WI 53066.
Does Dr. Thomas K. Marsh have affiliation with practices?
Dr. Thomas K. Marsh is affiliated with Primary Eyecare Associates.
Does Dr. Thomas K. Marsh accept patients with Security Health Plan?
Yes, Dr. Thomas K. Marsh is listed in-network for Security Health Plan through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.
What conditions does Dr. Thomas K. Marsh treat?
Dr. Thomas K. Marsh provides treatment for Blepharitis, Cataracts, Contact Lens Prescription and Fitting, Crossed Eyes, Eyeglasses Fitting and Prescription, Macular Degeneration. For the full list see this list.