Provider Profile
Based in Boston, MA, Mayssam El Najjar is listed in the NPI registry under internal medicine. Mayssam is also listed as specializing in student in an organized health care education program and counselor. NPI 1821764622 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
736 CAMBRIDGE ST
Boston, MA 02135
4940 Eastern Ave
Baltimore, MD 21224
Mayssam El Najjar is an internist in Boston, MA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Mayssam El Najjar is listed at 736 Cambridge St, Boston, MA 02135. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (617) 789-3000. Contact the office directly to confirm availability and scheduling.
NPI registry
Mayssam El Najjar's National Provider Identifier is 1821764622. 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
Mayssam El Najjar has 5+ years experience. Registered with an NPI since 2021. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Not yet. This profile is built from public federal data and has not been confirmed by Mayssam El Najjar. If this is you, claiming it is free.
Guide.md
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