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Dr. Keith Mercer, MD

Grass Valley, CA

42 Years of Experience

Accepting patients

    Who is Dr. Mercer, Ophthalmologist in Grass Valley, CA?

    Dr. Keith Mercer, MD is an Ophthalmologist, who primarily practices in Grass Valley, CA. He has been practicing for over 42 years and is board certified by the American Board of Ophthalmology. Dr. Mercer graduated from University of California and completed his residency at Univ Ca Irvine Med Ctr, Ophthalmology; Va Long Beach Hlthcare Sys, Internal Medicine. Dr. Mercer is fluent in English and French, and is currently seeing new patients. Dr. Mercer’s practice accepts Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Mercer’s office at (530) 272-3411.

    Where did Dr. Mercer go to medical school and complete their residency?

    • Residency: Univ Ca Irvine Med Ctr, Ophthalmology; Va Long Beach Hlthcare Sys, Internal Medicine | University Calif Irvine | U S DEPARTMENT OF VETERANS AFFAIRS

    • Medical School: University Of Ca- Irvine- Ca Coll Of Med- Irvine Ca | University of California

    Is Dr. Mercer board certified in Ophthalmologist?

    Yes, Dr. Keith Mercer, MD is board certified by the American Board of Ophthalmology

    What languages does Dr. Mercer speak?

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

    • English

    • French

    What conditions does Dr. Mercer treat?

    As a Ophthalmologist, Dr. Mercer 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. Mercer. 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:

    • Cataract
    • Secondary Cataract
    • Cloudy lens
    • Lens clouding
    • Eye cloudiness
    • After-Cataract
    • Posterior Capsule Opacification
    • PCO

    ICD-10 Codes:

    • H2513: Age-related nuclear cataract, bilateral
    • H25813: Combined forms of age-related cataract, bilateral
    • H2640: Unspecified secondary cataract

    Also known as:

    • Nearsightedness
    • Farsightedness
    • Refractive Errors
    • Farsightedness (Hyperopia)
    • Myopia
    • Difficulty Seeing Far Away
    • Blurry Distance Vision
    • Hyperopia
    • Long-sightedness
    • Hypermetropia

    ICD-10 Codes:

    • H5213: Myopia, bilateral
    • H5203: Hypermetropia, bilateral

    Also known as:

    • Preglaucoma
    • Primary Open-Angle Glaucoma
    • Borderline Open-Angle Glaucoma
    • Narrow Angle Glaucoma Risk
    • Glaucoma
    • Early Glaucoma
    • Borderline Glaucoma
    • Risk of Glaucoma
    • Chronic Open-Angle Glaucoma
    • Wide-Angle Glaucoma
    • POAG
    • Early Open-Angle Glaucoma
    • Open-angle glaucoma suspect
    • Risk of Open-Angle Glaucoma
    • Anatomical Narrow Angle
    • Angle-Closure Glaucoma Risk
    • Eye angle problem

    ICD-10 Codes:

    • H40003: Preglaucoma, unspecified, bilateral
    • H401131: Primary open-angle glaucoma, bilateral, mild stage
    • H40023: Open angle with borderline findings, high risk, bilateral
    • H40033: Anatomical narrow angle, bilateral
    • H401132: Primary open-angle glaucoma, bilateral, moderate stage

    Also known as:

    • Intraocular Lens Implant
    • Cataract
    • Refractive Errors
    • IOL Implant
    • Artificial Eye Lens
    • Cataract Lens Implant

    ICD-10 Codes:

    • Z961: Presence of intraocular lens

    Also known as:

    • Type 2 Diabetes
    • Diabetes Type 2
    • Type 2 diabetes
    • Diabetes Mellitus Type 2
    • Adult-Onset Diabetes
    • Non-Insulin Dependent Diabetes

    ICD-10 Codes:

    • E119: Type 2 diabetes mellitus without complications

    Also known as:

    • Aging of the eye's gel
    • Eye Disease
    • Vitreous Detachment
    • Vitreous syneresis
    • Eye gel breakdown
    • Vitreous aging

    ICD-10 Codes:

    • H43813: Vitreous degeneration, bilateral
    • H43812: Vitreous degeneration, left eye

    Also known as:

    • Unspecified Vision Problem
    • Vision Impairment and Blindness
    • Unspecified visual disturbance
    • General vision issue
    • Eye problem

    ICD-10 Codes:

    • H539: Unspecified visual disturbance

    Also known as:

    • Dry Macular Degeneration
    • Macular Degeneration
    • Dry AMD
    • Atrophic Macular Degeneration
    • Age-related Macular Degeneration (Dry)

    ICD-10 Codes:

    • H353131: Nonexudative age-related macular degeneration, bilateral, early dry stage

    Also known as:

    • Dry Eyes
    • Tears
    • Dry eye syndrome
    • Keratoconjunctivitis sicca
    • Ocular dryness

    ICD-10 Codes:

    • H04123: Dry eye syndrome of bilateral lacrimal glands

    Also known as:

    • Routine Eye and Vision Exam (Normal Findings)
    • Eye Disease
    • Vision Impairment and Blindness
    • Annual eye checkup
    • Vision screening, no issues
    • Eye health exam, all clear

    ICD-10 Codes:

    • Z0100: Encounter for examination of eyes and vision without abnormal findings

    Also known as:

    • Exposure Keratoconjunctivitis
    • Corneal Disorder
    • Exposure eye inflammation
    • Lagophthalmos keratitis
    • Dry eye from exposure

    ICD-10 Codes:

    • H16213: Exposure keratoconjunctivitis, bilateral

    Also known as:

    • Macular Pucker
    • Retinal Disorder
    • Epiretinal Membrane
    • Cellophane Maculopathy
    • Macular Wrinkle
    • Retinal Scar

    ICD-10 Codes:

    • H35371: Puckering of macula, right eye

    Does Dr. Mercer accept my insurance?

    Dr. Mercer accepts most major insurance plans. Important: Please call our office at (530) 272-3411 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Mercer accept in Grass Valley, CA?

    Dr. Mercer in Grass Valley, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • All Other Third Party

    • Blue Shield of California

    • Centene

    • CVS Health (formerly Aetna)

    • Department of Veterans Affairs

    • Hill Physicians Medical Group

    • Imperial Health Plan (CA)

    • Medicare

    • State of California

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Mercer's office located?

    Dr. Keith Mercer's Primary Practice

    400 Sierra College Dr Ste A

    Grass Valley, CA 95945

    (530) 272-3411

    Get Directions

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

    Dr. Mercer's National Provider Identifier (NPI) number is 1568543049.

    What common questions do patients ask about Dr. Mercer?

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

    What is Dr. Keith Mercer's specialty?

    Dr. Mercer is a Ophthalmologist near Grass Valley, 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. Mercer to book an appointment today.

    Is this Dr. Keith Mercer affiliated with a ranked Castle Connolly Top Hospital?

    No, Mercer is not affiliated with a Castle Connolly Top Hospital. Castle Connolly Top Hospitals 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 Keith Mercer accepting new patients in Grass Valley, CA?

    Yes, Dr. Keith Mercer is accepting new patients at this time.

    Does Dr. Keith Mercer offer online booking?

    Please contact Dr. Mercer's office at (530) 272-3411 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Keith Mercer?

    Please contact Dr. Mercer's office at (530) 272-3411 for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. Keith Mercer have?

    Dr. Keith Mercer is certified by the American Board of Ophthalmology.

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