Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

John Tierney, PA-C

Individual provider Physician Assistant · NPI 1669010591

John Tierney, PA-C is a Physician Assistant in Bethpage, New York. Qualified in 2020, 6 years ago. Practices with North Shore-Lij Medical PC, a 6,350-clinician group, works from 2 locations and accepts Medicare assignment.

Years since qualifying
6
In the registry since
2019
Specialties on file
2
What do these letters mean?
PA-C — Physician Assistant, Certified
A physician assistant who holds current national certification.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

246 N 4th St
Bethpage, NY 11714-2026
Phone: (516) 974-6160
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 2310 Hempstead Tpke, East Meadow, NY 11554-2035 — (516) 531-6492

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1669010591
Entity typeIndividual (Type 1)
GenderMale
Credentials PA-C
Sole proprietorYes
NPI enumeratedDecember 10, 2019
Last updated in NPPESJanuary 8, 2021
Certification dateJanuary 8, 2021

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2020 (6 years in practice)
Group practice North Shore-Lij Medical Pc — 6350 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $44 2 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at North Shore-Lij Medical PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 6350 clinicians in the practice; 12 are shown here.

Other providers in Bethpage