Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Timothy O'Byrne, MD

Individual provider Cardiovascular Disease Physician · NPI 1538144514

Dr. Timothy O'Byrne, MD is a Cardiovascular Disease (Cardiology) in Staten Island, New York. Graduated from State University of Ny Upstate Medical University in 1992, 34 years ago. Practices with Cardiovascular Associates of Staten Island LLC, a 6-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
34
Trained at
State University of Ny Upstate Medical University
Licensed in
NY
In the registry since
2005
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

501 Seaview Ave Ste 100
Staten Island, NY 10305-3436
Phone: (718) 667-0077
Fax: (718) 667-4103
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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 194645 (NY)

Record details

NPI number1538144514
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedDecember 13, 2005
Last updated in NPPESMay 15, 2026
Certification dateMay 15, 2026

Medicare enrollment

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

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolSTATE UNIVERSITY OF NY UPSTATE MEDICAL UNIVERSITY
Graduated 1992 (34 years in practice)
Group practice Cardiovascular Associates Of Staten Island Llc — 6 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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