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NPISignal

Individual Healthcare Provider

Jennifer Derfel, MS, RDN, CDN

NPI Record: ActiveDietitian, Registered
NPI1447949144
Pound Ridge, New York

Provider's NPPES record last updated: November 28, 2023

Overview

Entity Type
Individual Healthcare Provider
NPI
1447949144
Primary Specialty
Dietitian, Registered
Practice Location
Pound Ridge, New York
Sole Proprietor
Yes

Federal Screening

NPISignal checked this NPI against federal exclusion sources. Results below are based on the NPI number itself — an identifier match, not a name match.

List of Excluded Individuals/Entities (LEIE)

HHS Office of Inspector General

No potential match identified

No potential match was identified in NPISignal's indexed List of Excluded Individuals/Entities (LEIE) records as of 2026-09-10.

Source data
September 10, 2026
Records indexed
84,001
Screened
Sep 18, 2026, 5:57 PM UTC

This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.

SAM.gov Exclusions

U.S. General Services Administration

Not checked

SAM.gov Exclusions was not checked.

SAM.gov screening is not configured on this deployment. No SAM check has been performed.

Screened
Not checked

This is an NPI-based check only. NPISignal does not publish name-based exclusion matches on a provider profile. A shared or similar name is a lead that requires human review, not an identification, and this page is not the place to make one. Run a name-based screening below to see potential matches with the reasons for each.

This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.

Run a name-based screening

Searches OIG LEIE and SAM.gov by name and reviews every potential match.

Specialties & Taxonomies

  • Dietitian, Registered

    Dietary & Nutritional Service Providers

    Primary

    A Registered Dietitian (RD)/Registered Dietitian Nutritionist (RDN) is an individual uniquely trained in the science of nutrition and practice of dietetics to design and provide medical nutrition therapy (MNT) and other evidence-based applications of the Nutrition Care Process (NCP) that exemplify the profession's systematic approach to providing high quality nutrition care. Registered dietitians provide MNT for the purpose of disease prevention or management, or to treat or rehabilitate an illness, injury, or condition, with the use of specific, indicated physical and cognitive nutrition care services comprised of one or more of the following aspects of the NCP: nutrition assessment/reassessment, nutrition diagnosis, nutrition intervention (e.g., nutrition counseling, therapeutic diet ordering, and nutrition education) and nutrition monitoring and evaluation.

    Taxonomy code 133V00000X
  • Dietitian, Registered

    Nutrition, Gerontological

    Dietary & Nutritional Service Providers

    An individual who is a Specialist in Gerontological Nutrition and provides nutrition care to promote quality of life and optimal health for older adults across the continuum of care, including: acute care, post-acute care, primary care, long-term care, assisted living, home care, palliative care, community-based nutrition, food service, correctional facilities, and government programs. RDN who works indirectly with gerontological nutrition through roles in management, industry, education, and research.

    Taxonomy code 133VN1101X
  • Dietitian, Registered

    Nutrition, Obesity and Weight Management

    Dietary & Nutritional Service Providers

    An individual who is a Board Certified Specialist for Obesity and Weight Management and educates, supports, and advocates for patients and clients to understand and manage their weight and associated risks through the use of nutritional, behavioral health, medical, surgical, pharmacotherapeutic, and exercise and physical activity interventions.

    Taxonomy code 133VN1201X
  • Dietitian, Registered

    Nutrition, Oncology

    Dietary & Nutritional Service Providers

    An individual who is a Board Certified Specialist in Oncology Nutrition and provides direct nutrition care for individuals at risk for or diagnosed with cancer. RDNs working directly with individuals at risk for, or diagnosed with, any type of malignancy or pre-malignant condition, in a variety of settings (e.g. hospitals, clinics, cancer centers, hospices, public health), OR indirectly through roles in management, education, industry, and research practice linked specifically to oncology nutrition. RDN who works indirectly with oncology nutrition through roles in management, education, industry, and research.

    Taxonomy code 133VN1301X

Provider-Reported License Information

Dietitian, Registered (New York)
011515
Dietitian, Registered (New York)
011515
Dietitian, Registered (New York)
011515
License numbers are reported by the provider to NPPES and are not independently verified by NPISignal against any state licensing board. Confirm current license status directly with the issuing state board.

Practice Locations

Practice Location

56 Indian Hill Rd

Pound Ridge, New York 10576-1729

Phone: (914) 275-2736

Record Information

Enumeration Date
May 8, 2023
Provider's NPPES Record Last Updated
November 28, 2023
Certification Date
November 28, 2023
NPISignal NPPES Dataset
August 2026

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