Dr. Jonathan Leff M.D.
About this NPIWhat this record shows.
NPI 1538407721 is registered to Dr. Jonathan Leff M.D., a Research Study Specialist practising at 178 Seminary Dr in Menlo Park, California. Research Study Specialist is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Dr. Jonathan Leff M.D. has been enumerated in the National Provider Identifier (NPI) registry since 2013.
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 Dr. Jonathan Leff M.D. accepts. To confirm in-network status with your specific health plan, contact Dr. Jonathan Leff M.D. directly at (650) 521-0353.
Frequently asked
Yes. NPI 1538407721 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Research Study Specialist 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 (650) 521-0353.
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. Jonathan Leff M.D. is a Type-1 individual NPI.