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Edit this profileAt a glance
- 300 State St, Erie, PA 16507
About Dr. Constantine
Listed in the NPI registry as an ophthalmology — retina specialist, Ryan Constantine, M.D., PhD practices in Erie, PA. Ryan graduated from University of Utah School of Medicine in 2014. Medicare claims data shows Ryan provided 52,093 services to 2,940 patients. The services billed most often include injection, faricimab-svoa, 0.1 mg, imaging of retina, and injection of drug into eye. NPI 1932527199 identifies this record in the national registry.
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
- (814) 456-4241
- Email not available
Practice Locations
300 STATE ST
Erie, PA 16507
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
Eye injury and cancer
Inflammation, neurologic, and orbit
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
Retina & vitreous
Procedures & services
Cataract and lens
- Cataract surgery with lens implant
- Laser-assisted cataract surgery
- Intraocular lens exchange
- YAG laser capsulotomy
Cornea and refractive
Emergency and minor
- Corneal rust-ring removal
- Removal of an eye foreign body
- Repair of an eye or eyelid laceration
- Repair of ruptured globe
Examination and imaging
- Eye ultrasound
- Slit-lamp examination
- Visual-field testing
- Corneal topography
- Fluorescein angiography
Eyelid, tear duct, and muscle
- Chalazion removal
- Ectropion repair
- Eyelid surgery
- Tear-duct probing
- Drooping-eyelid repair
- Entropion repair
- Eye-muscle surgery
- Tear-duct bypass surgery
Glaucoma
- Cyclophotocoagulation
- Trabeculectomy
- Glaucoma drainage-device implantation
- Laser peripheral iridotomy
- Minimally invasive glaucoma surgery
- Selective laser trabeculoplasty
Retina
Most searched procedures
Corneal procedures
Eye diagnostics
Eye injuries
Eyelid surgery
Laser eye surgery
Laser procedures
Laser vision correction
Refractive surgery
Tear duct & Orbit
Procedures Most Often Billed to Medicare
52,093 services · 2,940 patients · 18 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Injection of drug into eye | Procedure | 67028 |
1,591 | More often than most peers in Ophthalmology — Retina Specialist |
| Repair of detached retina with drainage and removal of eye fluid between lens and retina | Procedure | 67108 |
21 | More often than most peers in Ophthalmology — Retina Specialist |
| Removal of eye fluid (vitreous) between lens and retina | Procedure | 67036 |
21 | More often than most peers in Ophthalmology — Retina Specialist |
| Photocoagulation treatment to prevent detachment of retina | Procedure | 67145 |
12 | Less often than most peers in Ophthalmology — Retina Specialist |
| Imaging of retina | Treatment | 92134 |
2,499 | More often than most peers in Ophthalmology — Retina Specialist |
| Established patient complete exam of visual system | Treatment | 92014 |
516 | As often as other peers in Ophthalmology — Retina Specialist |
| New patient complete exam of visual system | Treatment | 92004 |
87 | More often than most peers in Ophthalmology — Retina Specialist |
| Extended exam of the back part of the eye with retinal drawing | Treatment | 92201 |
37 | Less often than most peers in Ophthalmology — Retina Specialist |
| Exam of visual field with extended testing | Treatment | 92083 |
24 | As often as other peers in Ophthalmology — Retina Specialist |
| Photography of the retina | Treatment | 92250 |
17 | Less often than most peers in Ophthalmology — Retina Specialist |
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.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
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.
More connections — 22 related providers in 3 groups
Trained at University of Utah School of Medicine 7
Other providers in the same specialty who trained at the same institution.
Class of 2014 at University of Utah School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Injection of drug into eye 7
Providers in PA who bill this service to Medicare most often.
Common questions
What is Dr. Constantine's specialty?
Dr. Constantine is an eye doctor in Erie, PA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Ophthalmology — Retina Specialist”.
NPI registry
Where can I find Dr. Constantine?
Dr. Constantine is listed at 300 State St, Erie, PA 16507. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Constantine?
The number on file is (814) 456-4241. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Constantine?
Dr. Constantine's National Provider Identifier is 1932527199. 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. Constantine's medical education?
Dr. Constantine attended University of Utah School of Medicine, graduating in 2014. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Constantine have?
Dr. Constantine has 12 years experience. Calculated from a graduation year of 2014, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Constantine known for?
According to Medicare billing data, Dr. Constantine performs procedures including injection of drug into eye, repair of detached retina with drainage and removal of eye fluid between lens and retina and removal of eye fluid between lens and retina; provides treatments such as imaging of retina and established patient complete 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
Is Dr. Constantine's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Constantine. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.