Physician Profile

John J. Mariani, M.D.

Unclaimed Profile

About Dr. Mariani

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Specialty

Addiction Medicine (Neurology/Psychiatry) (Primary)

Credentials & Licensing

NY license199048
NPI1245383405
NPI issued01/19/2007

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.

Medicare information

Medicare opt-outYes, since November 2021

Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.

Common questions

What kind of doctor is John J. Mariani?

John J. Mariani is an addiction medicine (neurology/psychiatry) in New York, NY. That is the designation recorded for this NPI in the federal registry.

NPI registry

What is John J. Mariani's address?

John J. Mariani is listed at 51 E 25Th St Ste 7E, New York, NY 10010. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

How can I make an appointment with John J. Mariani?

The number on file is (646) 609-6771. Guide.md cannot book appointments or pass on messages — please call the office directly.

NPI registry

What is the NPI for John J. Mariani?

John J. Mariani's National Provider Identifier is 1245383405. 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

How much experience does John J. Mariani have?

John J. Mariani has 19+ years experience. Registered with an NPI since 2007. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.

NPI registry

Is John J. Mariani's profile verified?

Not yet. This profile is built from public federal data and has not been confirmed by John J. Mariani. 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.