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

Lynn Elizabeth Mastrianni, NP

Individual provider Adult Health Nurse Practitioner · NPI 1205177672

Lynn Elizabeth Mastrianni, NP is a Nurse Practitioner in New Haven, Connecticut. Qualified in 2013, 13 years ago. Practices with Yale University, a 2,618-clinician group, works from 3 locations, accepts Medicare assignment and offers telehealth. Licensed in Connecticut.

Years since qualifying
13
Licensed in
CT
In the registry since
2013
Specialties on file
2
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

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Practice location Address checks out

20 York St
New Haven, CT 06510-3220
Phone: (203) 200-4822
Fax: (203) 200-2099
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 263 Farmington Ave, Farmington, CT 06030-8040 — (860) 679-2100
  • 85 Retreat Ave, Hartford, CT 06106-2555 — (860) 972-4183

Specialties & licences

Gerontology Nurse Practitioner (primary) Taxonomy 363LG0600X · Licence 6560 (CT)
Adult Health Nurse Practitioner Taxonomy 363LA2200X · Licence 006560 (CT)

Record details

NPI number1205177672
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorNo
NPI enumeratedMarch 11, 2013
Last updated in NPPESMay 26, 2026
Certification dateMay 26, 2026

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2013 (13 years in practice)
Group practice Yale University — 2618 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

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