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About this NPIWhat this record shows.
NPI 1619362993 is registered to Sylvia Casas De Leon MD, a Cornea and External Diseases Specialist Physician practising at 1800 Town Center Dr Ste 317 in Reston, Virginia. Cornea and External Diseases Specialist Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Sylvia Casas De Leon MD has been enumerated in the National Provider Identifier (NPI) registry since 2015.
Provider type
Individual (Type 1)
Status
Active
Enumerated
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This provider holds 2 Medicare enrollments on file with the Provider Enrollment, Chain and Ownership System (PECOS). Each enrollment carries a public Medicare Enrollment ID (ENRLMT_ID) used by billers and intermediaries.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Sylvia Casas De Leon MD accepts. To confirm in-network status with your specific health plan, contact Sylvia Casas De Leon MD directly at (703) 437-3900.
Frequently asked
Yes. NPI 1619362993 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Cornea and External Diseases Specialist Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (703) 437-3900.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. Sylvia Casas De Leon MD is a Type-1 individual NPI.
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