Dr. Lily Mark-Maasdam
- Gender: Female
- Experience: 23 years
- Graduated from: Illinois College Of Optometry At Chicago
- Graduation year: 1998
- Sole propriator: No
- NPI: 1477536423
Dr. Lily Mark-Maasdam O.D.
Optometrist
She is located at 100 South 5th Street in Knoxville, IA 50138. Can help patients with the following: Blepharitis, Color Blindness, Dry Eyes, Esotropia, Pink Eye, Sty. Her National Provider Identifier (NPI) number is 1477536423. Appointment can be made via the phone number (641) 842-3616. She is affiliated with 1 practices.
Conditions treated
Dr. Lily Mark -Maasdam, 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. Lily Mark-Maasdam.
- 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. Lily Mark-Maasdam
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Lily Mark-Maasdam as in-network for the following 2026 plans.
Health plans
Medica
Network data as of Jan 13, 2025, as reported by the insurer.
Show all 9 plans from Medica
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Medica Insure Bronze $0 Copay PCP Visits | EPO · Expanded Bronze | Standardtier | Accepting new patients |
| Medica Insure Bronze Share | EPO · Expanded Bronze | Standardtier | Accepting new patients |
| Medica Insure Expanded Bronze Standard | EPO · Expanded Bronze | Standardtier | Accepting new patients |
| Medica Insure Gold $0 Copay PCP Visits | EPO · Gold | Standardtier | Accepting new patients |
| Medica Insure Gold Share | EPO · Gold | Standardtier | Accepting new patients |
| Medica Insure Gold Standard | EPO · Gold | Standardtier | Accepting new patients |
| Medica Insure Silver $0 Copay PCP Visits | EPO · Silver | Standardtier | Accepting new patients |
| Medica Insure Silver Share | EPO · Silver | Standardtier | Accepting new patients |
| Medica Insure Silver Standard | EPO · Silver | Standardtier | Accepting new patients |
UnitedHealthcare
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 12 plans from UnitedHealthcare
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| UHC Bronze Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care, No Referrals) | HMO · Expanded Bronze | Non Preferred | Accepting new patients |
| UHC Bronze Standard (No Referrals) | HMO · Expanded Bronze | Non Preferred | Accepting new patients |
| UHC Bronze Value ($0 Virtual Urgent Care, No Referrals) | HMO · Expanded Bronze | Non Preferred | Accepting new patients |
| UHC Bronze Value+ ($0 Virtual Urgent Care, Dental + Vision, No Referrals) | HMO · Expanded Bronze | Non Preferred | Accepting new patients |
| UHC Gold Advantage ($0 Virtual Urgent Care, $1 Tier 2 Rx, No Referrals) | HMO · Gold | Non Preferred | Accepting new patients |
| UHC Gold Advantage+ ($0 Virtual Urgent Care, $1 Tier 2 Rx, Dental + Vision, No Referrals) | HMO · Gold | Non Preferred | Accepting new patients |
| UHC Gold Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care, $3 Tier 2 Rx, No Referrals) | HMO · Gold | Non Preferred | Accepting new patients |
| UHC Gold Standard (No Referrals) | HMO · Gold | Non Preferred | Accepting new patients |
| UHC Silver Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care, No Referrals) | HMO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Standard (No Referrals) | HMO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Value ($0 Virtual Urgent Care, $3 Tier 2 Rx, No Referrals) | HMO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Value+ ($0 Virtual Urgent Care, $3 Tier 2 Rx, Dental + Vision, No Referrals) | HMO · Silver | Non Preferred | Accepting new patients |
Wellmark Health Plan of Iowa, Inc.
Network data as of Sep 8, 2026, as reported by the insurer.
Show all 7 plans from Wellmark Health Plan of Iowa, Inc.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Wellmark Bronze HDHP HMO HSA Qualified | HMO · Expanded Bronze | Wellmark Blue HMO Network | Accepting new patients |
| Wellmark Bronze Traditional HMO | HMO · Expanded Bronze | Wellmark Blue HMO Network | Accepting new patients |
| Wellmark Gold Traditional HMO | HMO · Gold | Wellmark Blue HMO Network | Accepting new patients |
| Wellmark Silver Traditional HMO | HMO · Silver | Wellmark Blue HMO Network | Accepting new patients |
| Wellmark Standard Bronze HMO | HMO · Expanded Bronze | Wellmark Blue HMO Network | Accepting new patients |
| Wellmark Standard Gold HMO | HMO · Gold | Wellmark Blue HMO Network | Accepting new patients |
| Wellmark Standard Silver HMO | HMO · Silver | Wellmark Blue HMO Network | 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. Lily Mark-Maasdam 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. Lily Mark-Maasdam is enrolled to bill Medicare as a Practitioner - Optometry .
Bills through: Eye Health Solutions Pc
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
| Johnson \u0026 Johnson | $923 |
| Shire North American Group | $78 |
| Allergan | $68 |
Other
| Travel and Lodging | $576 |
| Food and Beverage | $512 |
Studies
ILLINOIS COLLEGE OF OPTOMETRY AT CHICAGO
Graduated in 1998
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Questions & Answers
Where can you meet with Dr. Lily Mark -Maasdam?
Dr. Lily Mark -Maasdam's office is located at 100 South 5th Street in Knoxville, IA 50138.
What conditions does Dr. Lily Mark -Maasdam treat?
Dr. Lily Mark -Maasdam provides treatment for Blepharitis, Color Blindness, Dry Eyes, Esotropia, Pink Eye, Sty. For the full list see this list.
Does Dr. Lily Mark -Maasdam accept patients with UnitedHealthcare?
Yes, Dr. Lily Mark -Maasdam is listed in-network for UnitedHealthcare through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.
Does Dr. Lily Mark -Maasdam have affiliation with practices?
Dr. Lily Mark -Maasdam is affiliated with Eye Health Solutions.