Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Stephen O'Mahony, MD

Individual provider Hospitalist Physician · NPI 1144291162

Dr. Stephen O'Mahony, MD is an Internal Medicine in Norwalk, Connecticut. Graduated from University of Connecticut School of Medicine in 1996, 30 years ago. Practices with Rwjbh Primary Care Services, a 263-clinician group and accepts Medicare assignment. Licensed in Connecticut.

Years since qualifying
30
Trained at
University of Connecticut School of Medicine
Licensed in
CT
In the registry since
2006
Specialties on file
3
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

24 Stevens St
Norwalk, CT 06850-3852
Phone: (203) 852-2375
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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 037765 (CT)
Hospitalist Physician Taxonomy 208M00000X · Licence 037765 (CT)
Adult Medicine Physician Taxonomy 207QA0505X · Licence 037765 (CT)

Record details

NPI number1144291162
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 28, 2006
Last updated in NPPESOctober 1, 2008

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF CONNECTICUT SCHOOL OF MEDICINE
Graduated 1996 (30 years in practice)
Group practice Rwjbh Primary Care Services — 263 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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