Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Mr. Michael Francis O'Brien, PA-C

Individual provider Physician Assistant · NPI 1104887884

Mr. Michael Francis O'Brien, PA-C is a Physician Assistant in Halfmoon, New York. Qualified in 1988, 38 years ago. Practices with Ellis Hospital, a 252-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
38
Licensed in
NY
In the registry since
2006
What do these letters mean?
PA-C — Physician Assistant, Certified
A physician assistant who holds current national certification.

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Practice location Address checks out

103 Sitterly Rd Ste 2300
Halfmoon, NY 12065
Phone: (518) 579-2650
Fax: (518) 579-2670
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence 003610-1 (NY)

Record details

NPI number1104887884
Entity typeIndividual (Type 1)
GenderMale
Credentials PA-C
Sole proprietorNo
NPI enumeratedMarch 31, 2006
Last updated in NPPESJuly 10, 2018

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 1988 (38 years in practice)
Group practice Ellis Hospital — 252 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Other providers in Halfmoon