Physician Profile
Keith B. Mercer, M.D.
Unclaimed ProfileAbout Dr. Mercer
Keith B. Mercer, M.D. practices ophthalmology in Grass Valley, CA. Keith is a 1977 graduate of University of California, Irvine, California College of Medicine. Medicare claims data shows Keith provided 2,642 services to 2,316 patients.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (530) 272-3411
- Email not available
Practice Locations
400 SIERRA COLLEGE DR SUITE A
Grass Valley, CA 95945
Conditions Commonly Evaluated or Treated
Within Ophthalmology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
- Cataracts
- Diabetic retinopathy
- Dry eye
- Glaucoma
- Macular degeneration
Cornea and external eye
- Blepharitis
- Corneal abrasion
- Corneal ulcer
- Keratoconus
- Pink eye
- Pterygium
Eyelid and tear drainage
- Blocked tear duct
- Chalazion
- Drooping eyelid
Refractive and focusing
- Astigmatism
- Eye misalignment (strabismus)
- Farsightedness
- Lazy eye (amblyopia)
- Nearsightedness
- Presbyopia
Retina and vitreous
- Epiretinal membrane
- Retinal detachment
Eye injuries
- Foreign Object in Eye
Inflammation, neurologic, and orbit
- Thyroid eye disease
- Uveitis
Retina & vitreous
- Eye Floaters and Flashes
Procedures & services
Most searched procedures
- Cataract surgery
- Eye exam
- LASIK
- Retina surgery
Examination and imaging
- Corneal topography
- Fluorescein angiography
Cataract and lens
- Intraocular lens exchange
- YAG laser capsulotomy
Corneal procedures
- Amniotic Membrane Eye Graft
Eye diagnostics
- Optical Coherence Tomography Scan
Eye injuries
- Eye Scratch Laceration Repair
- Foreign Object Removal from Eye
Eyelid surgery
- Stye Removal
Eyelid, tear duct, and muscle
- Drooping-eyelid repair
- Entropion repair
- Eye-muscle surgery
- Eyelid surgery
- Tear-duct bypass surgery
Glaucoma
- Glaucoma drainage-device implantation
- Laser peripheral iridotomy
- Minimally invasive glaucoma surgery
- Selective laser trabeculoplasty
Laser eye surgery
- Laser Floater Removal
Laser procedures
- Laser Treatment for Retinal Tear
Laser vision correction
- SMILE Eye Surgery
Refractive surgery
- Clear Lens Exchange
- Implantable Contact Lenses
Tear duct & Orbit
- Orbital Decompression Surgery
- Tear Duct Plugs
Procedures Most Often Billed to Medicare
2,642 services · 2,316 patients · 9 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Removal of recurring cataract in lens capsule using a laser | Procedure | 66821 |
38 |
| Ultrasound scan of cornea to determine thickness | Imaging | 76514 |
15 |
| Established patient complete exam of visual system | Treatment | 92014 |
976 |
| Established patient problem focused exam of visual system | Treatment | 92012 |
752 |
| Imaging of optic nerve | Treatment | 92133 |
376 |
| New patient complete exam of visual system | Treatment | 92004 |
178 |
| Imaging of retina | Treatment | 92134 |
132 |
| Exam of visual field with extended testing | Treatment | 92083 |
122 |
| New patient problem focused exam of visual system | Treatment | 92002 |
53 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other ophthalmology specialists at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 24 related providers in 3 groups
Trained at University of California, Irvine, California College of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1977 at University of California, Irvine, California College of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Removal of recurring cataract in lens capsule using a laser 8
Providers in CA who bill this service to Medicare most often.
Common questions
What is Keith B. Mercer's specialty?
Keith B. Mercer is an ophthalmology in Grass Valley, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Keith B. Mercer?
Keith B. Mercer is listed at 400 Sierra College Dr Suite A, Grass Valley, CA 95945. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Keith B. Mercer?
The number on file is (530) 272-3411. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Keith B. Mercer?
Keith B. Mercer's National Provider Identifier is 1568543049. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Keith B. Mercer's education?
Keith B. Mercer attended University of California, Irvine, California College of Medicine, graduating in 1977. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Keith B. Mercer have?
Keith B. Mercer has 49 years experience. Calculated from a graduation year of 1977, reported in the CMS National Downloadable File.
CMS public data
What is Keith B. Mercer known for?
According to Medicare billing data, Keith B. Mercer performs procedures including removal of recurring cataract in lens capsule using a laser; reads or performs imaging such as ultrasound scan of cornea to determine thickness; provides treatments such as established patient complete exam of visual system and established patient problem focused exam of visual system. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Keith B. Mercer's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Keith B. Mercer. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.