Katherine Pfeiffer, CNS, NP
NPI 1356676423 · Psychiatric/Mental Health Nurse Practitioner · New Haven, CT
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Pfeiffer, CNS, NP is a Psychiatric/Mental Health Nurse Practitioner provider in New Haven, CT (NPI 1356676423).
Provider details
- NPI number
- 1356676423
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CNS, NP
- Sex
- Female
- Sole proprietor
- No
- License
- 13222 (CT)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-10-07
- Last updated
- 2025-05-09
- Certified
- 2025-05-09
Frequently asked questions
- What is Katherine Pfeiffer's NPI number?
- Katherine Pfeiffer's National Provider Identifier (NPI) is 1356676423, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Pfeiffer's specialty?
- Katherine Pfeiffer is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Katherine Pfeiffer located?
- Katherine Pfeiffer's practice location on file with NPPES is 437 Orange St, New Haven, CT 06511-6205.
- What is Katherine Pfeiffer's phone number?
- The practice phone number listed in the NPPES registry for Katherine Pfeiffer is (203) 909-6370.
- Does Katherine Pfeiffer accept Medicare?
- Katherine Pfeiffer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Pfeiffer's NPI active?
- Yes — Katherine Pfeiffer's NPI (1356676423) is active in the NPPES registry as of the last update on 2025-05-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.