Dr. Keith Mercer, MD

Dr. Keith Mercer, MD

Ophthalmology  ·  
Male  ·  
68 y/o

Accepting new patients

Dr. Keith Mercer, MD is an ophthalmology specialist in Grass Valley, CA and has been practicing for 37 years. He specializes in ophthalmology.Read his story

Sierra Ambulatory Surgery Center LLP

400 Sierra College Dr Ste B

Grass Valley, CA 95945
Get Directions

Insurance Accepted

  • Aetna
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield of California
  • Cigna
  • First Health (Coventry Health Care)
  • MultiPlan

Learn about Dr. Mercer

Be confident in your decisions by checking out your provider's top areas of care, education, patient reviews and more. Learn about finding the right doctor for you.

Top Care Areas

See how frequently Dr. Mercer performs your care needs compared to other doctors.

very high
more than 95% of peers
Senile Cataracts
more than 93% of peers
more than 92% of peers

Dr. Mercer's percentages are based on the rate of treatment compared to peers nationwide from insurance data. Learn more info about our data and this Top Care Areas component.

Dr. Mercer's bio

This content was provided by Dr. Mercer "Dr. Mercer has been practicing Comprehensive Ophthalmology in Grass Valley since 1981. He is an active staff member of Sierra Nevada Memorial Hospital as both Chief of Surgery and Chief of Staff. He is also currently a staff member of Sierra Ambulatory Surgery Center. Dr Mercer and his wife have raised their two children in Nevada County where they have enjoyed this beautiful community. He has served as board members of Sierra Adoption Services and Hospice of the Foothills. His wife, a former teacher, was active in the local schools while raising their kids. Dr. Mercer loves to play golf and travel. His practice remains very busy. He hopes to continue to treat and enjoy his time with many long established patients as he also adds new patients and forms new acquaintances."


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Care Philosophy

This content was provided by Dr. Mercer "Our physicians are dedicated to providing superior medical care in a compassionate manner.  Our goal is to provide our community with state of the art surgical care, in a safe comfortable and convenient setting."

1  Specialties

  • Ophthalmology

1  Board Certifications

  • Ophthalmology
    Accredited by: American Board of Ophthalmology*

66  Conditions Treated

  • Age-Related Macular Degeneration
  • All Headaches (incl. Migraine)
  • Anterior Ischemic Optic Neuropathy
  • Autoimmune Diseases
  • Autoimmune Thyroid Diseases
  • Benign Neoplasm of Choroid
  • Benign Neoplasm of Eye
  • Benign Tumor
  • Blepharitis
  • Blindness
  • Blocked Tear Duct
  • Brain Disorders
  • Cataract
  • Central Serous Chorioretinopathy
  • Chorioretinal Scars
  • Color Blindness
  • Conjunctival Hemorrhage
  • Diabetic Macular Edema (DME)
  • Diabetic Retinopathy
  • Diplopia
  • Drooping Eyelids (Ptosis)
  • Dry Age-Related Macular Degeneration
  • Dry Eyes
  • Ectropion of Eyelid
  • Entropion
  • Esophoria
  • Esotropia
  • Exophoria
  • Exotropia
  • Eye Cancer
  • Eye Infections
  • Eyelid Disorders
  • Glaucoma
  • Glaucoma - Iridogoniodysgenesia
  • Graves' Disease
  • Headache
  • Herpetic Keratitis
  • Heterophoria
  • Hypertropia
  • Hyphema
  • Hypotropia
  • Keratitis
  • Nearsightedness
  • Night Blindness
  • Nystagmus
  • Ocular Hypertension
  • Paralytic Strabismus
  • Pinguecula
  • Pinkeye (Conjunctivitis)
  • Pterygium
  • Retina Diseases
  • Retinal Detachment and Retinal Tear
  • Retinal Dystrophy
  • Retinal Vein Occlusion
  • Senile Cataracts
  • Strabismus
  • Stye
  • Tear Duct Disorders
  • Temporal Arteritis
  • Thyroid Disease
  • Vascular Disease
  • Vision Impairment
  • Vision Loss
  • Visual Field Defects
  • Vitreous Hemorrhage
  • Wet Age-Related Macular Degeneration


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8  Procedures

  • Cataract Removal Surgery
  • Contact Lens Exams
  • Eye Examination
  • Eye Procedure
  • Eye Surgery
  • Eyeglasses
  • Glaucoma Surgery
  • Soft Contact Lenses

Background Check

0 Malpractice Claims

No malpractice history found for California.

0 Sanctions

No sanctions history found for the years that Healthgrades collects data.

0 Board Actions

No board actions found for the years that Healthgrades collects data.


  • University Of California, Irvine, College Of Medicine
    Medical School | Graduated 1977
  • VA Hospital
    Internship Hospital | Completed 1978
  • University Calif Irvine
    Residency Hospital | Completed 1981

Awards & Recognition

Awards & Honors
  • Healthgrades Honor Roll
Media & Publications

Dr. Mercer has no media or publications listed.

Languages Spoken

  • English

Memberships & Professional Affiliations

Dr. Mercer does not have any memberships or affiliations listed. If you are Dr. Mercer and would like to add memberships or affiliations, please update your profile.

Dr. Mercer's Reviews

Likelihood of recommending Dr. Mercer to family and friends
6 total reviews (2 have comments)

Likelihood to Recommend (6)

  • 5
  • 4
  • 3
  • 2
  • 1

Dr. Mercer's Performance

  • Trustworthiness

  • Explains condition(s) well

  • Answers questions

  • Time well spent


Office & Staff Performance

  • Scheduling

  • Office environment

  • Staff friendliness

  • Average wait time

    16 to 30 minutes

Patient Comments (2)

Dr. Mercer is a great guy and did a fabulous job on my cataract surgery! I can see again! Thanks, Dr. Mercer.
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Great staff, clean, timely, full service
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