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

Dr. Richard George Greiner Jr., MD

Individual provider Emergency Medicine Physician · NPI 1871602318

Dr. Richard George Greiner Jr., MD practises Emergency Medicine in Bridgeport, Connecticut. Graduated from Pennsylvania State University College of Medicine in 2004, 22 years ago. Practices with Bridgeport Hospital, a 137-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Connecticut and Pennsylvania.

Years since qualifying
22
Trained at
Pennsylvania State University College of Medicine
Licensed in
CT, PA
In the registry since
2006
Specialties on file
2
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

267 Grant St
Bridgeport, CT 06610-2805
Phone: (203) 384-3256
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 28 Crescent St, Middletown, CT 06457-3654 — (860) 358-8016

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 045480 (CT)
Emergency Medicine Physician Taxonomy 207P00000X · Licence MD429505 (PA)

Record details

NPI number1871602318
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 29, 2006
Last updated in NPPESJuly 21, 2022

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolPENNSYLVANIA STATE UNIVERSITY COLLEGE OF MEDICINE
Graduated 2004 (22 years in practice)
Group practice Bridgeport Hospital — 137 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 patients280
Services billed 299 a service is one billed item, such as a visit, a test or a procedure
Average patient age77

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 Bridgeport Hospital

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 137 clinicians in the practice; 12 are shown here.

Other providers in Bridgeport