Physician Profile
Unclaimed ProfileAbout MERCER
Ryan Nelson Mercer, MD practices ophthalmology in Columbia, SC. Ryan is a 2016 graduate of Medical University of South Carolina College of Medicine. Ryan is also listed as specializing in student in an organized health care education program. According to Medicare claims data, Ryan cared for 2,518 Medicare patients across 3,087 services.
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
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (803) 256-0641
- Email not available
Practice Locations
1655 BERNARDIN AVE STE 100
Columbia, SC 29204
Procedures Most Often Billed to Medicare
3,087 services · 2,518 patients · 23 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Removal of cataract with insertion of prosthetic lens | Procedure | 66984 |
296 |
| Removal of recurring cataract in lens capsule using a laser | Procedure | 66821 |
71 |
| Incision to improve eye fluid flow | Procedure | 65820 |
46 |
| Complex removal of cataract with insertion of prosthetic lens | Procedure | 66982 |
27 |
| Placement of amniotic membrane on eye surface for wound healing | Procedure | 65778 |
27 |
| Closure of tear duct opening using plug | Procedure | 68761 |
26 |
| Laser repair to improve eye fluid flow | Procedure | 65855 |
20 |
| Ultrasound scan of cornea to determine thickness | Imaging | 76514 |
25 |
| Established patient complete exam of visual system | Treatment | 92014 |
579 |
| Established patient problem focused exam of visual system | Treatment | 92012 |
537 |
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.
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.
Other ophthalmology specialists in Columbia 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Medical University of South Carolina College of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2016 at Medical University of South Carolina College of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Removal of cataract with insertion of prosthetic lens 8
Providers in SC who bill this service to Medicare most often.
Common questions
What is Dr. Mercer's specialty?
Dr. Mercer is an ophthalmology in Columbia, SC. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “OPHTHALMOLOGY”.
NPI registry
Where can I find Dr. Mercer?
Dr. Mercer is listed at 1655 BERNARDIN AVE STE 100, Columbia, SC 29204. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Mercer?
The number on file is (803) 256-0641. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Mercer's NPI number?
Dr. Mercer's National Provider Identifier is 1598129298. 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 Dr. Mercer's medical education?
Dr. Mercer attended Medical University of South Carolina College of Medicine, graduating in 2016. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Mercer been practicing?
Dr. Mercer has 10 years experience. Calculated from a graduation year of 2016, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Mercer known for?
According to Medicare billing data, Dr. Mercer performs procedures including removal of cataract with insertion of prosthetic lens, removal of recurring cataract in lens capsule using a laser and incision to improve eye fluid flow; 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, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Mercer confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Mercer. If this is you, claiming it is free.
Guide.md
Is this your profile?
Verify your identity to control how patients — and AI assistants — describe you.
Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.