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

Emily A Duffield, APRN

Individual provider Adult Health Nurse Practitioner · NPI 1750650149

Emily A Duffield, APRN is a Nurse Practitioner in New Haven, Connecticut. Qualified in 2011, 15 years ago. Practices with Yale University, a 2,618-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Connecticut.

Years since qualifying
15
Licensed in
CT
In the registry since
2011
What do these letters mean?
APRN — Advanced Practice Registered Nurse
The umbrella licence covering nurse practitioners, midwives, anaesthetists and clinical nurse specialists.

See every abbreviation used in this directory →

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Practice location Address checks out

20 York St
New Haven, CT 06510-3220 Not confirmed with CMS for 10 years — call before visiting
Phone: (203) 200-5864
Fax: (203) 200-4810
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Adult Health Nurse Practitioner (primary) Taxonomy 363LA2200X · Licence 004863 (CT)

Record details

NPI number1750650149
Entity typeIndividual (Type 1)
GenderFemale
Credentials APRN
Sole proprietorNo
NPI enumeratedDecember 14, 2011
Last updated in NPPESJuly 26, 2016

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2011 (15 years in practice)
Group practice Yale University — 2618 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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 patients82
Services billed 234 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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 Yale University

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2618 clinicians in the practice; 12 are shown here.

Other providers in New Haven