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

Dr. Patrick G Lynch, MD

Individual provider Internal Medicine Physician · NPI 1841495256

Dr. Patrick G Lynch, MD practises Nephrology in Stony Brook, New York. Graduated from Albert Einstein College of Medicine of Yeshiva University in 2005, 21 years ago. Practices with Saratoga Hospital, a 352-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
21
Trained at
Albert Einstein College of Medicine of Yeshiva University
Licensed in
NY
In the registry since
2007
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

Department Of Medicine Health Science Center T16-020 Stony Brook University
Stony Brook, NY 11794-8160 Not confirmed with CMS for 14 years — call before visiting
Phone: (631) 444-8478
Fax: (631) 444-7546
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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 246610 (NY)

Record details

NPI number1841495256
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 15, 2007
Last updated in NPPESSeptember 6, 2012

Medicare enrollment

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

Medicare specialtyNEPHROLOGY
Medical schoolALBERT EINSTEIN COLLEGE OF MEDICINE OF YESHIVA UNIVERSITY
Graduated 2005 (21 years in practice)
Group practice Saratoga Hospital — 352 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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 patients412
Services billed 1,369 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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 Saratoga Hospital

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 352 clinicians in the practice; 12 are shown here.

Other providers in Stony Brook