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Edit this profileAt a glance
- 31 Smith St, Charleston, SC 29401
About Dr. Ellyn
John C. Ellyn, MD practices ophthalmology in Charleston, SC. John is a 1981 graduate of George Washington University School of Medicine. John is also listed as specializing in specialist. According to Medicare claims data, John cared for 751 Medicare patients across 882 services. The services billed most often include established patient complete exam of visual system, imaging of optic nerve, and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more. The provider's National Provider Identifier (NPI) is 1952394330.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (843) 577-6506
- Email not available
Practice Locations
31 SMITH ST
Charleston, SC 29401
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
Cornea and external eye
Eyelid and tear drainage
Refractive and focusing
- Astigmatism
- Eye misalignment (strabismus)
- Farsightedness
- Lazy eye (amblyopia)
- Nearsightedness
- Presbyopia
Retina and vitreous
Eye injuries
Inflammation, neurologic, and orbit
Retina & vitreous
Procedures & services
Most searched procedures
Examination and imaging
Cataract and lens
Corneal procedures
Eye diagnostics
Eye injuries
Eyelid surgery
Eyelid, tear duct, and muscle
Glaucoma
- Glaucoma drainage-device implantation
- Laser peripheral iridotomy
- Minimally invasive glaucoma surgery
- Selective laser trabeculoplasty
Laser eye surgery
Laser procedures
Laser vision correction
Refractive surgery
Tear duct & Orbit
Procedures Most Often Billed to Medicare
882 services · 751 patients · 9 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Established patient complete exam of visual system | Treatment | 92014 |
308 | As often as other peers in Ophthalmology |
| Imaging of optic nerve | Treatment | 92133 |
152 | As often as other peers in Ophthalmology |
| Imaging of retina | Treatment | 92134 |
103 | As often as other peers in Ophthalmology |
| Exam of visual field with extended testing | Treatment | 92083 |
91 | As often as other peers in Ophthalmology |
| Established patient problem focused exam of visual system | Treatment | 92012 |
25 | Less often than most peers in Ophthalmology |
| Photography of the retina | Treatment | 92250 |
24 | Less often than most peers in Ophthalmology |
| New patient complete exam of visual system | Treatment | 92004 |
23 | Less often than most peers in Ophthalmology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
132 | As often as other peers in Ophthalmology |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
24 | Less often than most peers in Ophthalmology |
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 eye doctors at this location 1
Same specialty, same street address — most likely the same department or group.
Also at this address 2
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other eye doctors in Charleston 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at George Washington University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1981 at George Washington University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Established patient complete exam of visual system 8
Providers in SC who bill this service to Medicare most often.
Common questions
What is Dr. Ellyn's specialty?
Dr. Ellyn is an eye doctor in Charleston, SC. That is the designation recorded for this NPI in the federal registry, where it is listed as “Ophthalmology”.
NPI registry
Where can I find Dr. Ellyn?
Dr. Ellyn is listed at 31 Smith St, Charleston, SC 29401. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Ellyn?
The number on file is (843) 577-6506. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Ellyn's NPI number?
Dr. Ellyn's National Provider Identifier is 1952394330. 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. Ellyn's medical education?
Dr. Ellyn attended George Washington University School of Medicine, graduating in 1981. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Ellyn been practicing?
Dr. Ellyn has 45 years experience. Calculated from a graduation year of 1981, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Ellyn known for?
According to Medicare billing data, Dr. Ellyn provides treatments such as established patient complete exam of visual system and imaging of optic nerve, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Ellyn confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Ellyn. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.