Doctor profile · Federal record
Dr. Keith Mercer, M.D.
Ophthalmology Physician (CMS: Ophthalmology) · Grass Valley, CA
- NPI 1568543049
- Accepts Medicare
- MIPS 97.5 / 100 · 2023
- 49 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
400 Sierra College Dr, Suite A
Grass Valley, CA 959455089
(530) 272-3411
fax (530) 272-3474
Credentials & registration
- NPI registered
- October 2006 — 20 yrs on file
- Profile last updated
- January 10, 2013
- Year of graduation
- 1977 — 49 yrs since
- Specialty taxonomy
- 207W00000X — NUCC code
- State license (1)
- California #G37695
- Medicaid (2)
- CA #GR0004680 · CA #G376950
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1568543049. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
3,027
Distinct HCPCS
10
Medicare allowed
$327,255
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
92014 |
Established patient complete exam of visual system | 1,054 | 1,049 | $133 | |
92012 |
Established patient problem focused exam of visual system | 828 | 603 | $95 | |
92133 |
Imaging of optic nerve | 356 | 292 | $38 | |
92004 |
New patient complete exam of visual system | 317 | 317 | $158 | |
92083 |
Exam of visual field with extended testing | 176 | 175 | $67 | |
92134 |
Imaging of retina | 106 | 100 | $42 | |
92002 |
New patient problem focused exam of visual system | 84 | 84 | $91 | |
66821 |
Removal of recurring cataract in lens capsule using a laser | 49 | 48 | $382 | |
76514 |
Ultrasound scan of cornea to determine thickness | 29 | 29 | $11 | |
67820 |
Removal of eyelashes using forceps | 15 | 14 | $20 |
In context: peer comparison
Among 2 peers in Grass Valley Ophthalmology Physician, average services per provider: 277. This provider delivers 11× the peer median.Open Payments
Industry payments received
All-time total
$186
Transactions
9
Manufacturers
6
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Amgen INC. | 3 | $66.71 | |
| Abbvie INC. | 1 | $33.64 | |
| Biotissue Holdings INC. | 2 | $32.50 | |
| Bausch & Lomb Americas INC. | 1 | $22.66 | |
| Thea Pharma INC. | 1 | $15.71 | |
| Sun Pharmaceutical Industries INC. | 1 | $14.80 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,112
Patients
384
Total drug cost
$82,610
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Latanoprost | Generic | 601 | 141 | $12,799 |
| Prednisolone Acetate | Generic | 81 | 66 | $2,883 |
| Timolol Maleate | Generic | 75 | 27 | $2,490 |
| Dorzolamide-Timolol (Dorzolamide Hcl/Timolol Maleat) | Brand | 68 | 23 | $2,379 |
| Dorzolamide Hcl | Generic | 59 | 23 | $1,561 |
| Erythromycin (Erythromycin Base) | Brand | 54 | 46 | $695 |
| Lumigan (Bimatoprost) | Brand | 39 | 12 | $23,463 |
| Neomycin-Polymyxin-Dexameth (Neomycin/Polymyxin B/Dexametha) | Brand | 38 | 34 | $602 |
| Brimonidine Tartrate | Generic | 23 | 0 | $382 |
| Restasis (Cyclosporine) | Brand | 21 | 0 | $16,848 |
Frequently asked questions
What is Dr. Keith Mercer's medical specialty?
Dr. Keith Mercer practices Ophthalmology Physician in Grass Valley, CA.
Where does Dr. Keith Mercer practice?
Dr. Keith Mercer practices at 400 Sierra College Dr, Grass Valley, CA 959455089. Office phone: 5302723411.
What is Dr. Keith Mercer's NPI?
Dr. Keith Mercer's National Provider Identifier (NPI) is 1568543049, issued by NPPES.
Does Dr. Keith Mercer accept Medicare assignment?
Yes. Dr. Keith Mercer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Keith Mercer commonly perform?
Top Medicare-reported procedures in 2023: Established patient complete exam of visual system (HCPCS 92014); Established patient problem focused exam of visual system (HCPCS 92012); Imaging of optic nerve (HCPCS 92133). Source: CMS Medicare Physician & Other Practitioners file.