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

MS. Cynthia Mary Ronan IV, MD

Individual provider Specialist · NPI 1346251659

MS. Cynthia Mary Ronan IV, MD is an Obstetrics/Gynecology in Derby, Connecticut. Graduated from New York Medical College in 1989, 37 years ago. Practices with Griffin Faculty Physicians Inc, a 125-clinician group and accepts Medicare assignment. Licensed in Connecticut.

Years since qualifying
37
Trained at
New York Medical College
Licensed in
CT
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.

See every abbreviation used in this directory →

Practice location Address checks out

300 Seymour Ave Ste 108
Derby, CT 06418-1343
Phone: (203) 736-6383
Fax: (203) 736-0499
Show map & directions

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

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence 33188 (CT)
Specialist Taxonomy 174400000X · Licence 033188 (CT)

Record details

NPI number1346251659
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 11, 2006
Last updated in NPPESJanuary 4, 2023
Certification dateJanuary 4, 2023

Medicare enrollment

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

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolNEW YORK MEDICAL COLLEGE
Graduated 1989 (37 years in practice)
Group practice Griffin Faculty Physicians Inc — 125 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Derby