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

Brendan James Sullivan, MD

Individual provider Internal Medicine Physician · NPI 1144660754

Brendan James Sullivan, MD is an Internal Medicine Physician in New York, New York. Works from 6 locations. Licensed in Connecticut, Illinois, Massachusetts and Maryland and 2 more.

Licensed in
CT, IL, MA, MD, NJ, NY
In the registry since
2013
Specialties on file
7
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

80 Maiden Ln Ste 900
New York, NY 10038-4811
Phone: (917) 261-4414
Fax: (917) 261-4420
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (5)

  • 755 Main Street, Hartford, CT 06103 — (917) 261-4414
  • 131 S Dearborn St, Chicago, IL 60603-5517 — (917) 261-4414
  • 1 Post Office Sq, Boston, MA 02109-2106 — (917) 261-4414
  • 1501 S Clinton St, Baltimore, MD 21224-5730 — (866) 233-6925
  • 530 5th Ave Fl 10, New York, NY 10036-5114 — (917) 261-4414

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 295780 (NY)
Internal Medicine Physician Taxonomy 207R00000X · Licence 63815 (CT)
Internal Medicine Physician Taxonomy 207R00000X · Licence D87163 (MD)
Internal Medicine Physician Taxonomy 207R00000X · Licence 036150346 (IL)
Internal Medicine Physician Taxonomy 207R00000X · Licence 272839 (MA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 256259 (MA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 25MA10635600 (NJ)

Record details

NPI number1144660754
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 27, 2013
Last updated in NPPESJune 5, 2024
Certification dateMay 29, 2024

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