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Edit this profileAt a glance
- 1534 11Th St, Portsmouth, OH 45662
About Dr. Knox
Robert J. Knox, M.D. practices ophthalmology in Portsmouth, OH. Robert is a 2000 graduate of University of Missouri, Columbia School of Medicine. Medicare claims data shows Robert provided 2,038 services to 1,463 patients. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more, and imaging of retina. The provider's National Provider Identifier (NPI) is 1790782035.
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
- (740) 355-1161
- Email not available
Practice Locations
1534 11TH ST
Portsmouth, OH 45662
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
- Epiretinal membrane
- Retinal detachment
Eye injuries
Inflammation, neurologic, and orbit
- Thyroid eye disease
- Uveitis
Retina & vitreous
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
Eye injuries
- Eye Scratch Laceration Repair
- Foreign Object Removal from Eye
Eyelid surgery
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
2,038 services · 1,463 patients · 23 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal of cataract with insertion of prosthetic lens | Procedure | 66984 |
142 | As often as other peers in Ophthalmology |
| Injection of drug into eye | Procedure | 67028 |
75 | Less often than most peers in Ophthalmology |
| Release of nerve using operating microscope | Procedure | 64727 |
62 | As often as other peers in Ophthalmology |
| Release of arm or leg nerve | Procedure | 64708 |
62 | As often as other peers in Ophthalmology |
| Removal of recurring cataract in lens capsule using a laser | Procedure | 66821 |
39 | As often as other peers in Ophthalmology |
| Removal of eyelashes using forceps | Procedure | 67820 |
28 | More often than most peers in Ophthalmology |
| Complex removal of cataract with insertion of prosthetic lens | Procedure | 66982 |
19 | As often as other peers in Ophthalmology |
| Imaging of retina | Treatment | 92134 |
191 | As often as other peers in Ophthalmology |
| Measurement of corneal curvature and depth of eye | Treatment | 92136 |
168 | As often as other peers in Ophthalmology |
| Photography of the retina | Treatment | 92250 |
105 | As often as other 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 3
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 Missouri, Columbia School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2000 at University of Missouri, Columbia School 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 OH who bill this service to Medicare most often.
Common questions
What is Robert J. Knox's specialty?
Robert J. Knox is an eye doctor in Portsmouth, OH. That is the designation recorded for this NPI in the federal registry, where it is listed as “Ophthalmology”.
NPI registry
Where can I find Robert J. Knox?
Robert J. Knox is listed at 1534 11Th St, Portsmouth, OH 45662. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Robert J. Knox?
The number on file is (740) 355-1161. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Robert J. Knox?
Robert J. Knox's National Provider Identifier is 1790782035. 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 Robert J. Knox's education?
Robert J. Knox attended University of Missouri, Columbia School of Medicine, graduating in 2000. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Robert J. Knox have?
Robert J. Knox has 26 years experience. Calculated from a graduation year of 2000, reported in the CMS National Downloadable File.
CMS public data
What is Robert J. Knox known for?
According to Medicare billing data, Robert J. Knox performs procedures including removal of cataract with insertion of prosthetic lens, injection of drug into eye and release of nerve using operating microscope; provides treatments such as imaging of retina and measurement of corneal curvature and depth of eye, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Robert J. Knox's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Robert J. Knox. If this is you, claiming it is free.
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