SYLVIA CASAS DE LEON MD
NPI 1619362993
Ophthalmology - Cornea and External Diseases Specialist in Reston, VA

Active since April 02, 2015PECOS EnrolledAccepts Medicare Assignment
1800 TOWN CENTER DR STE 317, RESTON, VA 20190(703) 437-3900(703) 437-9426 Get Directions Write a Review

NPPES record last updated: May 15, 2020. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: May 15, 2020, May 22, 2019 (2 updates tracked since 2019).

About Sylvia Casas De Leon Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

SYLVIA CASAS DE LEON MD (NPI 1619362993) is an individual cornea and external diseases specialist in Reston, Virginia, licensed in Virginia (0101268905) and active in the NPI registry since April 2015. She is enrolled in Medicare PECOS and is a graduate of Baylor College Of Medicine (2015).

NPPES Registry Identity

NPI1619362993
Entity TypeIndividualFemale
Primary Taxonomy207WX0120X
Provider Legal NameSYLVIA CASAS DE LEONCredential: MD
Location Address1800 TOWN CENTER DR STE 317Reston, VA 20190-3239
Mailing Address1800 Town Center Dr Ste 317Reston, VA 20190-3239 · (703) 437-3900 · Fax (703) 437-9426
Fax(703) 437-9426
Sole ProprietorYes
Medical School CMSBaylor College Of MedicineGraduated 2015
Enumeration DateApril 2, 2015
Last NPPES UpdateMay 15, 20202 updates tracked since enumeration
NPPES CertifiedMay 15, 2020
NPI 1619362993 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

Primary SpecialtyOphthalmology · Cornea and External Diseases SpecialistAllopathic & Osteopathic Physicians
Taxonomy Code207WX0120X
License Licensed in VA · 0101268905
Definition
An ophthalmologist who specializes in diseases of the cornea, sclera, eyelids, conjunctiva, and anterior segment of the eye.
Also ListedOphthalmologyTaxonomy 207W00000X · License 297778 (NY)
1800 TOWN CENTER DR STE 317, Reston, VA 20190

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Sylvia Casas De Leon Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4486988839
PECOS Enrollment IDI20200729002522, I20200731001867
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 18

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
435 services309 patients
Imaging of retina 92134
Imaging of the retina is a non-invasive procedure that captures detailed images of your eye's interior. This helps detect conditions like macular degeneration or retinal detachment. It's painless and takes only a few minutes.
300 services296 patients
Extended exam of the back part of the eye with optic nerve drawing 92202
This procedure involves a detailed examination of the back part of your eye, focusing on the optic nerve, a crucial component for vision. A drawing or map of the optic nerve is created to help track any changes over time. This can help detect eye diseases early.
180 services180 patients
Established patient complete exam of visual system 92014
An established patient complete exam of the visual system involves a thorough check of your eyes and vision. It assesses eye health, checks for diseases, and measures your ability to see clearly at different distances. It's a routine, non-invasive procedure.
108 services103 patients
Exam of visual field with extended testing 92083
An extended visual field exam is a detailed test to evaluate your peripheral (side) vision. It helps to detect any potential blind spots which may not be noticeable in daily life. These could be caused by eye diseases like glaucoma, or neurological conditions.
100 services88 patients
Imaging of optic nerve 92133
Imaging of the optic nerve is a non-invasive procedure that captures detailed pictures of your optic nerve. It helps doctors assess eye health, particularly for conditions like glaucoma. It's painless, quick, and uses safe technology like MRI or OCT (Optical Coherence Tomography).
76 services69 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20190 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$147.85 typical visit price
range $65.18 – $194.86
Typical copayment $36.96 (range $16.29 – $48.71)
Most-billed visit code 99204
Established Patient
$80.66 typical visit price
range $21.40 – $158.88
Typical copayment $20.16 (range $5.35 – $39.72)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Ophthalmology
1800 TOWN CENTER DR STE 317
RESTON, VA 20190
Ophthalmology
1800 TOWN CENTER DR STE 317
RESTON, VA 20190

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Sylvia Casas De Leon's NPI number?

The NPI number for Sylvia Casas De Leon is 1619362993. It was assigned to this individual provider in the NPPES registry on April 2, 2015.

Where is Sylvia Casas De Leon located?

Sylvia Casas De Leon practices at 1800 Town Center Dr Ste 317, Reston, VA 20190. The listed phone number is (703) 437-3900.

What is Sylvia Casas De Leon's specialty?

The primary specialty registered for this NPI is Ophthalmology, specializing in Cornea and External Diseases Specialist, with taxonomy code 207WX0120X.

Is Sylvia Casas De Leon enrolled in Medicare?

Yes. Sylvia Casas De Leon is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Sylvia Casas De Leon accept?

Health plans from Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and Blue Cross and Blue Shield of Texas list Sylvia Casas De Leon as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Sylvia Casas De Leon was last updated on May 15, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.