Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Sabu John & Mary Mallappallil Physician PC

Organization Internal Medicine Physician · NPI 1821312083

Sabu John & Mary Mallappallil Physician PC is an Internal Medicine Physician in Brooklyn, New York. Licensed in New York. Registered with an NPI since 2010.

Licensed in
NY
In the registry since
2010
Specialties on file
3
What do these letters mean?
PC — Professional corporation
A form of business registration, not a clinical qualification.

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Practice location Address checks out

322 Linden Blvd
Brooklyn, NY 11226
Phone: (718) 282-0801
Fax: (718) 282-8284
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence 217897 (NY)
Internal Medicine Physician Taxonomy 207R00000X · Licence 217897 (NY)
Interventional Cardiology Physician Taxonomy 207RI0011X · Licence 217897 (NY)

Record details

NPI number1821312083
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Sabu John — M.D · (917) 407-7898
NPI enumeratedMarch 17, 2010
Last updated in NPPESApril 21, 2017
Mailing address826 Albany Ave, Brooklyn, NY 11203-3002

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