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

Dr. Timothy Sullivan, MD

Individual provider Internal Medicine Physician · NPI 1811139702

Dr. Timothy Sullivan, MD is an Internal Medicine in New York, New York. Graduated from Georgetown University School of Medicine in 2009, 17 years ago. Practices with Icahn School of Medicine at Mount Sinai, a 2,791-clinician group, works from 5 locations, accepts Medicare assignment and offers telehealth. Licensed in New York.

Years since qualifying
17
Trained at
Georgetown University School of Medicine
Licensed in
NY
In the registry since
2009
Specialties on file
2
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

1 Gustave L Levy Pl
New York, NY 10029-6504
Phone: (212) 241-6741
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (4)

  • 275 7th Ave, New York, NY 10001-6708 — (212) 604-1701
  • 1000 10th Ave, New York, NY 10019-1147 — (212) 523-6500
  • 1111 Amsterdam Ave, New York, NY 10025-1716 — (212) 523-6500
  • 5 E 98th St, New York, NY 10029-6501 — (212) 523-6500

Specialties & licences

Infectious Disease Physician (primary) Taxonomy 207RI0200X · Licence 261988 (NY)
Internal Medicine Physician Taxonomy 207R00000X · Licence 261988 (NY)

Record details

NPI number1811139702
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 24, 2009
Last updated in NPPESMarch 6, 2019

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Also practisesINFECTIOUS DISEASE
Medical schoolGEORGETOWN UNIVERSITY SCHOOL OF MEDICINE
Graduated 2009 (17 years in practice)
Group practice Icahn School Of Medicine At Mount Sinai — 2791 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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