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

Individual provider Internal Medicine Physician · NPI 1447290119

Dr. Owen Joseph O'Neill, MD is an Internal Medicine in Sleepy Hollow, New York. Qualified in 1987, 39 years ago. Accepts Medicare assignment. Licensed in New York.

Years since qualifying
39
Licensed in
NY
In the registry since
2006
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

777 N Broadway Ste 310
Sleepy Hollow, NY 10591-1000
Phone: (914) 333-0034
Fax: (912) 333-0046
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 176762 (NY)

Record details

NPI number1447290119
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 8, 2006
Last updated in NPPESJuly 13, 2026

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesUNDERSEA AND HYPERBARIC MEDICINE
Medical schoolOTHER
Graduated 1987 (39 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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