Quick answers
- Does Katherine M. Pfeiffer accept Medicare assignment?
- Medicare's clinician data says Katherine M. Pfeiffer may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- What is Katherine M. Pfeiffer's NPI number?
- 1356676423. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Katherine M. Pfeiffer is enrolled with Medicare (CMS data updated October 2, 2026).
- 437 Orange StNew Haven, CT 06511 (203) 909‑6370
Group practices
Medicare enrollment lists Katherine M. Pfeiffer as a member of this group (CMS data updated October 2, 2026).
- Integral Health LLC6 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in New Haven
Clinicians with the same Medicare primary specialty in New Haven, CT — not a recommendation.
Other clinicians in Integral Health LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2021 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1356676423 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians