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Edit this profileWhere to find Sylvia Casas de Leon, MD
- Reston location main office
1800 Town Center Dr Ste 317, Reston, VA 20190 - New York location
635 W 165th St # 96, New York, NY 10032
About Dr. Casas de Leon
Based in Reston, VA, Sylvia Casas de Leon, MD is listed in the NPI registry under ophthalmology — cornea & external disease. Sylvia graduated from Baylor College of Medicine in 2015. Sylvia is also listed as specializing in ophthalmology and student in an organized health care education program. Medicare claims data shows Sylvia provided 1,879 services to 1,633 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, visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient', and imaging of retina. NPI 1619362993 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
- (703) 437-3900
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
1800 TOWN CENTER DR STE 317
Reston, VA 20190
635 W 165th St # 96
New York, NY 10032
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
1,879 services · 1,633 patients · 19 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal of cataract with insertion of prosthetic lens | Procedure | 66984 |
44 | Less often than most peers in Ophthalmology — Cornea &… |
| Closure of tear duct opening using plug | Procedure | 68761 |
24 | As often as other peers in Ophthalmology — Cornea &… |
| Ultrasound scan to determine eye length and lens power | Imaging | 76519 |
30 | Too few peers to compare |
| Ultrasound scan of cornea to determine thickness | Imaging | 76514 |
16 | Less often than most peers in Ophthalmology — Cornea &… |
| Imaging of retina | Treatment | 92134 |
300 | More than most peers in Ophthalmology — Cornea &… |
| Extended exam of the back part of the eye with optic nerve drawing | Treatment | 92202 |
180 | Too few peers to compare |
| Established patient complete exam of visual system | Treatment | 92014 |
108 | As often as other peers in Ophthalmology — Cornea &… |
| Exam of visual field with extended testing | Treatment | 92083 |
100 | More often than most peers in Ophthalmology — Cornea &… |
| Imaging of optic nerve | Treatment | 92133 |
76 | As often as other peers in Ophthalmology — Cornea &… |
| Measurement of corneal curvature and depth of eye | Treatment | 92136 |
36 | Less often than most peers in Ophthalmology — Cornea &… |
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 3
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.
Trained at Baylor College of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 9 related providers in 2 groups
Class of 2015 at Baylor 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 1
Providers in VA who bill this service to Medicare most often.
Common questions
What does Dr. Casas de Leon specialize in?
Dr. Casas de Leon is an eye doctor in Reston, VA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Ophthalmology — Cornea & External Disease”.
NPI registry
Where is Dr. Casas de Leon located?
Dr. Casas de Leon is listed at 1800 Town Center Dr Ste 317, Reston, VA 20190. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Casas de Leon's phone number?
The number on file is (703) 437-3900. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Casas de Leon?
Dr. Casas de Leon's National Provider Identifier is 1619362993. 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. Casas de Leon go to medical school?
Dr. Casas de Leon attended Baylor College of Medicine, graduating in 2015. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Casas de Leon have?
Dr. Casas de Leon has 11 years experience. Calculated from a graduation year of 2015, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Casas de Leon do most often?
According to Medicare billing data, Dr. Casas de Leon performs procedures including removal of cataract with insertion of prosthetic lens and closure of tear duct opening using plug; reads or performs imaging such as ultrasound scan to determine eye length and lens power and ultrasound scan of cornea to determine thickness; provides treatments such as imaging of retina and extended exam of the back part of the eye with optic nerve drawing, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Casas de Leon's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Casas de Leon. If this is you, claiming it is free.
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