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

John Gerard Obrien, MD

Individual provider Family Medicine Physician · NPI 1467527655

John Gerard Obrien, MD is registered under Family Practice in Liverpool, New York. Graduated from State University of Ny Upstate Medical University in 1986, 40 years ago. Practices with Crouse Medical Practice PLLC, a 189-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
40
Trained at
State University of Ny Upstate Medical University
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

8100 Oswego Rd Ste 220
Liverpool, NY 13090 Not confirmed with CMS for 18 years — call before visiting
Phone: (315) 652-6551
Fax: (315) 652-9698
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 171189 (NY)

Record details

NPI number1467527655
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 22, 2006
Last updated in NPPESMay 22, 2008

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolSTATE UNIVERSITY OF NY UPSTATE MEDICAL UNIVERSITY
Graduated 1986 (40 years in practice)
Group practice Crouse Medical Practice Pllc — 189 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients222
Services billed 1,074 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Crouse Medical Practice PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 189 clinicians in the practice; 12 are shown here.

Other providers in Liverpool