Mark Sirkin PHD
About this NPIWhat this record shows.
NPI 1821374059 is registered to Mark Sirkin PHD, a Clinical Psychologist practising at 3512 Quentin Rd in Brooklyn, New York. Clinical Psychologist is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Mark Sirkin PHD has been enumerated in the National Provider Identifier (NPI) registry since 2011.
Your brand here.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Mark Sirkin PHD accepts. To confirm in-network status with your specific health plan, contact Mark Sirkin PHD directly at (800) 275-3243.
Frequently asked
Yes. NPI 1821374059 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Clinical Psychologist 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 (800) 275-3243.
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. Mark Sirkin PHD is a Type-1 individual NPI.