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

Dr. Sean Grogan, DO, MS

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1619556925

Dr. Sean Grogan, DO, MS is an Emergency Medicine in New Haven, Connecticut. Qualified in 2021, 5 years ago. Practices with Yale University, a 2,618-clinician group and accepts Medicare assignment. Licensed in Connecticut.

Years since qualifying
5
Licensed in
CT
In the registry since
2021
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.
MS — Master of Science
A graduate science degree.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

20 York St
New Haven, CT 06510-3220
Phone: (203) 688-4242
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

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 81119 (CT)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1619556925
Entity typeIndividual (Type 1)
GenderMale
Credentials DO , MS
Sole proprietorNo
NPI enumeratedApril 5, 2021
Last updated in NPPESJune 28, 2025
Certification dateJune 28, 2025

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolOTHER
Graduated 2021 (5 years in practice)
Group practice Yale University — 2618 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in New Haven