Overview
Joann Chang is an Ophthalmologist in Lancaster, Massachusetts. Dr. Chang is rated as an Experienced provider by MediFind in the treatment of Age-Related Macular Degeneration (ARMD). Her top areas of expertise are Cataract, Dry Eye Syndrome, Interstitial Keratitis, and Parinaud Oculoglandular Syndrome. Dr. Chang is currently accepting new patients.
Her clinical research consists of co-authoring 2 peer reviewed articles. MediFind looks at clinical research from the past 15 years.
Insurance
Accepted insurance can change. Please verify directly with the provider.
Accepted insurance plans:
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- POS
- PPO
- HMO
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE SNP
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- OTHER MEDICARE PART D
- PPO
- OTHER MEDICARE
- OTHER MEDICARE PART D
- EPO
- HMO
- PPO
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- MEDICARE-MEDICAID PLAN
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- OTHER COMMERCIAL
- OTHER MEDICARE PART D
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- OTHER COMMERCIAL
- OTHER MEDICARE
- OTHER MEDICARE PART D
- PPO
- HMO
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- OTHER COMMERCIAL
- EPO
- HMO
- PPO
- HMO
- INDEMNITY
- POS
- PPO
- EPO
- POS
- PPO
- OTHER MANAGED MEDICAID
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- PPO
- OTHER MEDICAID
- STATE MEDICAID
- INSURANCE PLAN
- MEDICARE MAPD
- OTHER COMMERCIAL
- PPO
- HMO
- EPO
- HMO
- POS
- PPO
- EPO
- PPO
- MEDICARE DISCOUNT CARD
- MEDICARE PDP
- OTHER MEDICARE
- EPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- MEDICARE-MEDICAID PLAN
- OTHER MEDICARE
- OTHER MEDICARE PART D
Locations
479 Old Union Turnpike, Lancaster, MA 01523
Clinical Research
Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.
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Johanna Seddon is an Ophthalmologist in Worcester, Massachusetts. Dr. Seddon is rated as a Distinguished provider by MediFind in the treatment of Age-Related Macular Degeneration (ARMD). Her top areas of expertise are Age-Related Macular Degeneration (ARMD), Late-Onset Retinal Degeneration, Geographic Atrophy, and Hereditary Retinoblastoma. Dr. Seddon is currently accepting new patients.
Areas of Expertise
MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.
Learn more about MediFind’s expert tiers
- Advanced
- CataractDr. Chang isAdvanced. Learn about Cataract.
- Corneal Dystrophy and Perceptive Deafness
- Dry Eye SyndromeDr. Chang isAdvanced. Learn about Dry Eye Syndrome.
- Eyelid BumpDr. Chang isAdvanced. Learn about Eyelid Bump.
- Fuchs DystrophyDr. Chang isAdvanced. Learn about Fuchs Dystrophy.
- Interstitial KeratitisDr. Chang isAdvanced. Learn about Interstitial Keratitis.
- Experienced
- Age-Related Macular Degeneration (ARMD)
- Allergic ConjunctivitisDr. Chang isExperienced. Learn about Allergic Conjunctivitis.
- BlepharitisDr. Chang isExperienced. Learn about Blepharitis.
- ChalazionDr. Chang isExperienced. Learn about Chalazion.
- ChemosisDr. Chang isExperienced. Learn about Chemosis.
- Cloudy CorneaDr. Chang isExperienced. Learn about Cloudy Cornea.