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

Dr. Michael Gerringer, MD

Individual provider Internal Medicine Physician · NPI 1295732964

Dr. Michael Gerringer, MD practises Internal Medicine in Hopewell Junction, New York. Graduated from State University of New York at Stony Brook, School of Medicine in 1994, 32 years ago. Practices with Optum Medical Care PC, a 1,018-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
32
Trained at
State University of New York at Stony Brook, School of Medicine
Licensed in
NY
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

10 Cranberry Dr
Hopewell Junction, NY 12533-5367
Phone: (845) 231-5600
Fax: (845) 231-5699
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 202077 (NY)

Record details

NPI number1295732964
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 7, 2005
Last updated in NPPESNovember 17, 2016

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolSTATE UNIVERSITY OF NEW YORK AT STONY BROOK, SCHOOL OF MEDICINE
Graduated 1994 (32 years in practice)
Group practice Optum Medical Care Pc — 1018 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 patients630
Services billed 8,605 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. Those with a page here are linked.

Colleagues at Optum Medical Care PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1018 clinicians in the practice; 12 are shown here.

Other providers in Hopewell Junction