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About this NPIWhat this record shows.
NPI 1639210750 is registered to Mrs. Gillian Brennan PA, a Medical Physician Assistant practising at 221 Jericho Tpke in Syosset, New York. Medical Physician Assistant is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Mrs. Gillian Brennan PA has been enumerated in the National Provider Identifier (NPI) registry since 2007.
Provider type
Individual (Type 1)
Status
Active
Enumerated
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This provider holds a Medicare enrollment 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 Mrs. Gillian Brennan PA accepts. To confirm in-network status with your specific health plan, contact Mrs. Gillian Brennan PA directly at (516) 496-2752.
Frequently asked
Yes. NPI 1639210750 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Medical Physician Assistant 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 (516) 496-2752.
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. Mrs. Gillian Brennan PA is a Type-1 individual NPI.
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