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

Katherine Marie Pfeiffer, CNS, NP

Individual provider Psychiatric/Mental Health Nurse Practitioner · NPI 1356676423

Katherine Marie Pfeiffer, CNS, NP is a Nurse Practitioner in New Haven, Connecticut. Qualified in 2021, 5 years ago. Practices with Integral Health LLC, a 6-clinician group and offers telehealth. Licensed in Connecticut.

Years since qualifying
5
Licensed in
CT
In the registry since
2009
Specialties on file
2
What do these letters mean?
CNS — Clinical Nurse Specialist
An advanced practice nurse specialising in a patient population or setting.
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

437 Orange St
New Haven, CT 06511-6205
Phone: (203) 909-6370
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatric/Mental Health Nurse Practitioner (primary) Taxonomy 363LP0808X · Licence 13222 (CT)
Adult Psychiatric/Mental Health Clinical Nurse Specialist Taxonomy 364SP0809X · Licence 13222 (CT)

Record details

NPI number1356676423
Entity typeIndividual (Type 1)
GenderFemale
Credentials CNS , NP
Sole proprietorNo
NPI enumeratedOctober 7, 2009
Last updated in NPPESMay 9, 2025
Certification dateMay 9, 2025

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2021 (5 years in practice)
Group practice Integral Health Llc — 6 clinicians
Accepts Medicare assignment Not indicated
TelehealthOffers telehealth services

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