Provider Profile
Charles E. Ronan, OD
Unclaimed ProfileAbout Dr. Ronan
Charles E. Ronan, OD is an optometrist practicing in Tahlequah, OK. Charles trained at Indiana University - School of Optometry, graduating in 2017. Medicare claims data shows Charles provided 2,243 services to 1,965 patients. The services billed most often include new patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more, measurement of corneal curvature and depth of eye, and imaging of retina.
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
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
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
- (918) 444-2109
- Email not available
Practice Locations
1001 N GRAND AVE
Tahlequah, OK 74464
Conditions Commonly Evaluated or Treated
Within Optometry 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
- Astigmatism
- Dry eye
- Nearsightedness
- Pink eye
- Presbyopia
Contact lens issues
Cornea conditions
- Keratoconus
- Pterygium
Corneal issues
Eye conditions
Eye discomfort
Eye diseases
- Cataracts
- Diabetic retinopathy
- Glaucoma
- Macular degeneration
- Retinal Tear Symptoms
Eye infections
- Corneal ulcer
Eye inflammation
Eye injuries
- Corneal abrasion
- Foreign Object in Eye
Eye irritation
- Eye Allergies
- Eye Pain
- Watery Eyes
Eye surface issues
Eyelid conditions
- Blepharitis
- Drooping eyelid
- Eye Twitching
- Stye
Eyelid issues
- Chalazion
- Ectropion
- Entropion
- Eyelash Lice or Dandruff
Pediatric eye conditions
- Eye misalignment (strabismus)
- Lazy eye (amblyopia)
Pupil issues
Tear duct issues
- Blocked tear duct
Vision changes
- Blurry Vision
- Color Blindness
- Distorted Vision
- Double Vision
- Eye Floaters and Flashes
- Eye Strain
- Farsightedness
- Halos Around Lights
- Light Sensitivity
- Night Blindness
- Posterior vitreous detachment
- Tunnel Vision
- Visual Migraines
Procedures & services
Most searched procedures
Contact lens exams
- Bifocal or Multifocal Contact Lens Fitting
- Contact Lens Training
- Plano (Non-Prescription) Colored Contact Lens Exam
- Toric Contact Lens Fitting
Dry eye treatments
Examinations
- Comprehensive medical eye examination
- Diabetic Eye Exam
- DMV Vision Test
- Low Vision Assessment
- Pediatric Eye Exam
Eyelid care
Eyelid treatments
- Stye Removal
General exams
Glasses and eyewear
- Blue Light Glasses Consultation
- Eyeglass Frame Adjustment and Repair
- Prescription Sunglasses Consultation
- Prism Eyeglasses Fitting
Imaging & tests
- Color Vision Testing
- Corneal topography
- Coronary optical coherence tomography
- Eye-pressure measurement
- Pachymetry
- Retinal photography
- Visual Field Test
Imaging and scans
- Optical Coherence Tomography Scan
Minor procedures
- Amniotic Membrane Placement
- Tear Duct Plugs
Specialty lenses
Surgical evaluations
Tear duct procedures
Therapy
Urgent care
- Emergency Eye Care
- Foreign Object Removal from Eye
Vision correction
Procedures Most Often Billed to Medicare
2,243 services · 1,965 patients · 17 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal of recurring cataract in lens capsule using a laser | Procedure | 66821 |
216 | More often than most peers in Optometrist |
| Closure of tear duct opening using plug | Procedure | 68761 |
25 | Less often than most peers in Optometrist |
| Ultrasound scan of cornea to determine thickness | Imaging | 76514 |
18 | As often as other peers in Optometrist |
| Measurement of corneal curvature and depth of eye | Treatment | 92136 |
410 | More than most peers in Optometrist |
| Imaging of retina | Treatment | 92134 |
397 | More than most peers in Optometrist |
| Imaging of optic nerve | Treatment | 92133 |
91 | More often than most peers in Optometrist |
| Exam of visual field with extended testing | Treatment | 92083 |
47 | More often than most peers in Optometrist |
| Established patient complete exam of visual system | Treatment | 92014 |
32 | Less often than most peers in Optometrist |
| New patient complete exam of visual system | Treatment | 92004 |
27 | As often as other peers in Optometrist |
| Exam of the internal drainage system of eye | Treatment | 92020 |
19 | As often as other peers in Optometrist |
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 optometrists at this location 8
Same specialty, same street address — most likely the same department or group.
Also at this address 1
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 Indiana University - School of Optometry 8
Other providers in the same specialty who trained at the same institution.
Class of 2017 at Indiana University - School of Optometry 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 OK who bill this service to Medicare most often.
Common questions
What does Dr. Ronan specialize in?
Dr. Ronan is an optometrist in Tahlequah, OK. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Dr. Ronan located?
Dr. Ronan is listed at 1001 N Grand Ave, Tahlequah, OK 74464. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Ronan's phone number?
The number on file is (918) 444-2109. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Ronan?
Dr. Ronan's National Provider Identifier is 1639696057. 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
Where did Dr. Ronan go to medical school?
Dr. Ronan attended Indiana University - School of Optometry, graduating in 2017. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Ronan have?
Dr. Ronan has 9 years experience. Calculated from a graduation year of 2017, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Ronan do most often?
According to Medicare billing data, Dr. Ronan performs procedures including removal of recurring cataract in lens capsule using a laser and closure of tear duct opening using plug; reads or performs imaging such as ultrasound scan of cornea to determine thickness; provides treatments such as measurement of corneal curvature and depth of eye and imaging of retina, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Ronan's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Ronan. 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.