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Dr. Louis Chang, MD, PHD

Mountain View, CA

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Chang, Ophthalmologist in Mountain View, CA?

    Dr. Louis Chang, MD, PHD is an Ophthalmologist, who primarily practices in Mountain View, CA with 2 additional practice locations. He is board certified. Dr. Chang is fluent in English, Spanish, and Vietnamese, and is currently seeing new patients. Dr. Chang’s practice accepts Kaiser Permanente, Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Chang’s office at (310) 473-8878.

    What languages does Dr. Chang speak?

    Dr. Chang and their clinical team can communicate with patients in the following languages:

    • English

    • Spanish

    • Vietnamese

    What conditions does Dr. Chang treat?

    As a Ophthalmologist, Dr. Chang diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Chang. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly.

    Also known as:

    • Type 2 Diabetes with Macular Edema
    • Type 2 Diabetes with Severe Diabetic Eye Disease and Macular Swelling (Right Eye)
    • Type 2 Diabetes with Proliferative Diabetic Retinopathy
    • Type 2 Diabetes with Severe Diabetic Eye Disease and Macular Swelling (Left Eye)
    • Type 2 Diabetes with Diabetic Retinopathy
    • Type 2 Diabetes with Moderate Diabetic Eye Disease and Macular Swelling (Left Eye)
    • Diabetes Type 2
    • Diabetic Eye Problems
    • Diabetic Eye Swelling
    • Type 2 Diabetes Mellitus
    • Diabetic Macular Swelling
    • Severe Nonproliferative Diabetic Retinopathy with Macular Edema Right Eye
    • Advanced Retina Damage Right Eye with Macular Swelling
    • Diabetic Macular Edema Right Eye
    • Advanced diabetic eye disease
    • Diabetic retinopathy (proliferative)
    • New blood vessel growth in eye from diabetes
    • Severe Nonproliferative Diabetic Retinopathy with Macular Edema Left Eye
    • Advanced Retina Damage Left Eye with Macular Swelling
    • Diabetic Macular Edema Left Eye
    • Diabetic Eye Disease
    • Diabetic Retinal Disease
    • Diabetes Mellitus Eye Complications
    • Moderate Nonproliferative Diabetic Retinopathy with Macular Edema Left Eye
    • Moderate Retina Damage Left Eye with Macular Swelling

    ICD-10 Codes:

    • E113511: Type 2 diabetes mellitus with proliferative diabetic retinopathy with macular edema, right eye
    • E113512: Type 2 diabetes mellitus with proliferative diabetic retinopathy with macular edema, left eye
    • E113411: Type 2 diabetes mellitus with severe nonproliferative diabetic retinopathy with macular edema, right eye
    • E113591: Type 2 diabetes mellitus with proliferative diabetic retinopathy without macular edema, right eye
    • E113311: Type 2 diabetes mellitus with moderate nonproliferative diabetic retinopathy with macular edema, right eye
    • E113412: Type 2 diabetes mellitus with severe nonproliferative diabetic retinopathy with macular edema, left eye
    • E113592: Type 2 diabetes mellitus with proliferative diabetic retinopathy without macular edema, left eye
    • E113312: Type 2 diabetes mellitus with moderate nonproliferative diabetic retinopathy with macular edema, left eye

    Also known as:

    • Wet Macular Degeneration
    • Dry Macular Degeneration
    • Macular Degeneration
    • Exudative AMD
    • Neovascular Macular Degeneration
    • Wet AMD
    • Age-related Macular Degeneration (Wet)
    • Dry AMD
    • Atrophic Macular Degeneration
    • Age-related Macular Degeneration (Dry)

    ICD-10 Codes:

    • H353211: Exudative age-related macular degeneration, right eye, with active choroidal neovascularization
    • H353221: Exudative age-related macular degeneration, left eye, with active choroidal neovascularization
    • H353112: Nonexudative age-related macular degeneration, right eye, intermediate dry stage

    Also known as:

    • Macular Pucker
    • Blocked Branch Retinal Vein
    • Blocked Central Retinal Vein
    • Retinal Disorder
    • Epiretinal Membrane
    • Cellophane Maculopathy
    • Macular Wrinkle
    • Retinal Scar
    • Branch Retinal Vein Occlusion
    • BRVO
    • Eye Stroke
    • Macular Fibrosis
    • Wrinkled Retina
    • Central Retinal Vein Occlusion
    • CRVO

    ICD-10 Codes:

    • H35371: Puckering of macula, right eye
    • H348320: Tributary (branch) retinal vein occlusion, left eye, with macular edema
    • H35372: Puckering of macula, left eye
    • H348120: Central retinal vein occlusion, left eye, with macular edema

    Also known as:

    • Bleeding in the eye's gel
    • Eye Disease
    • Eye bleeding
    • Blood in the vitreous
    • Ocular hemorrhage

    ICD-10 Codes:

    • H4311: Vitreous hemorrhage, right eye
    • H4312: Vitreous hemorrhage, left eye

    Also known as:

    • Long-Term Insulin Use
    • Diabetes Medicines
    • Chronic insulin therapy
    • Ongoing insulin treatment
    • Insulin for diabetes

    ICD-10 Codes:

    • Z794: Long term (current) use of insulin

    Also known as:

    • Branch Retinal Vein Occlusion
    • Retinal Disorder
    • BRVO
    • Eye stroke (branch vein)
    • Branch eye vein blockage

    ICD-10 Codes:

    • H348310: Tributary (branch) retinal vein occlusion, right eye, with macular edema

    Also known as:

    • Cataract
    • Cloudy lens
    • Lens clouding
    • Eye cloudiness

    ICD-10 Codes:

    • H2513: Age-related nuclear cataract, bilateral

    Does Dr. Chang accept my insurance?

    Dr. Chang accepts most major insurance plans. Important: Please call our office at (310) 473-8878 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Chang accept in Mountain View, CA?

    Dr. Chang in Mountain View, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • Alignment Health Plan

    • All Other Third Party

    • Conifer Health Solutions

    • CVS Health (formerly Aetna)

    • OptumRx

    • Other Provider Networks

    • Santa Clara Family Health Plan

    • Sutter Health

    • UnitedHealthcare

    • Valley Health Plan

    View All Insurances

    Where is Dr. Chang's office located?

    Dr. Louis Chang's Primary Practice

    2485 Hospital Dr Ste 200

    Mountain View, CA 94040

    (310) 473-8878

    Get Directions

    Dr. Louis Chang's Practice 2

    2512 Samaritan Ct Ste P

    San Jose, CA 95124

    Get Directions

    Dr. Louis Chang's Practice 3

    200 Jose Figueres Ave Ste 415

    San Jose, CA 95116

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    What is Dr. Chang's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.

    Dr. Chang's National Provider Identifier (NPI) number is 1538295720.

    What common questions do patients ask about Dr. Chang?

    Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Chang

    What is Dr. Louis Chang's specialty?

    Dr. Chang is a Ophthalmologist near Mountain View, CA. An ophthalmologist possesses the knowledge and professional skills required to deliver comprehensive eye and vision care. These medical doctors are trained to diagnose, monitor, and treat all ocular and visual disorders, whether through medical or surgical interventions. Their expertise encompasses a wide range of issues affecting the eye and its structures, including the eyelids, orbit, and visual pathways. Additionally, ophthalmologists prescribe vision services, such as glasses and contact lenses, to help patients achieve optimal visual health. Contact Dr. Chang to book an appointment today.

    Is this Dr. Louis Chang affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Chang is affiliated with Mills-Peninsula Medical Center which is a Castle Connolly Top Hospital. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals

    Where can I learn more about Ophthalmologist?

    Explore Ophthalmologist with insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.

    Is Louis Chang accepting new patients in Mountain View, CA?

    Yes, Dr. Louis Chang is accepting new patients at this time.

    Does Dr. Louis Chang offer online booking?

    Please contact Dr. Chang's office at (310) 473-8878 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Louis Chang?

    Please contact Dr. Chang's office at (310) 473-8878 for information regarding telehealth appointment availability or for scheduling assistance.

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