Physician Profile
Based in East Rockaway, NY, John R. Gavencak, MD is listed in the NPI registry under allergy. John graduated from New York Medical College in 1974.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
400 ATLANTIC AVE
East Rockaway, NY 11518
Dr. Gavencak is an allergy in East Rockaway, NY. That is the designation recorded for this NPI in the federal registry.
NPI registry
Dr. Gavencak is listed at 400 Atlantic Ave, East Rockaway, NY 11518. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (516) 599-2732. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Gavencak's National Provider Identifier is 1821089392. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Dr. Gavencak attended New York Medical College, graduating in 1974. This comes from the CMS National Downloadable File.
CMS public data
Dr. Gavencak has 52 years experience. Calculated from a graduation year of 1974, reported in the CMS National Downloadable File.
CMS public data
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Gavencak. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.