Dr. David Fierstein MD
About this NPIWhat this record shows.
NPI 1265507685 is registered to Dr. David Fierstein MD, a Internal Medicine practising at 2001 Marcus Ave Ste S265 in New Hyde Park, New York. Internal Medicine physicians (internists) specialise in the prevention, diagnosis, and treatment of diseases in adults, often coordinating care across multiple subspecialties. Dr. David Fierstein MD has been enumerated in the National Provider Identifier (NPI) registry since 2006.
Your brand here.
Medicare enrollment
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.
Practitioner
- I20091117000287Internal MedicineNY
Source: CMS PECOS public enrollment file.
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 Dr. David Fierstein MD accepts. To confirm in-network status with your specific health plan, contact Dr. David Fierstein MD directly at (516) 686-0500.
Frequently asked
Yes. NPI 1265507685 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Internal Medicine physicians (internists) specialise in the prevention, diagnosis, and treatment of diseases in adults, often coordinating care across multiple subspecialties.
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) 686-0500.
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. Dr. David Fierstein MD is a Type-1 individual NPI.