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Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

JOHNITA BETH DUFF FNP-C
NPI 1821993213
Internal Medicine - Hematology & Oncology in Princeton, WV

Active since October 14, 2026
122 12TH ST, PRINCETON, WV 24740(304) 557-1164(304) 557-1165 Get Directions Write a Review

NPPES record added: October 14, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Johnita Beth Duff Fnp-c NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOHNITA BETH DUFF FNP-C (NPI 1821993213) is an individual hematology & oncology provider in Princeton, West Virginia, licensed in West Virginia (127126) and active in the NPI registry since October 2026.

NPPES Registry Identity

NPI1821993213
Entity TypeIndividualFemale
Primary Taxonomy207RH0003X
Provider Legal NameJOHNITA BETH DUFFCredential: FNP-C
Location Address122 12TH STPrinceton, WV 24740-2312
Mailing Address122 12th StPrinceton, WV 24740-2312 · (304) 557-1164 · Fax (304) 557-1165
Phone(304) 557-1164
Fax(304) 557-1165
Sole ProprietorNo
Enumeration DateOctober 14, 2026
NPPES CertifiedOctober 14, 2026
✔ NPI 1821993213 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
License✔ Licensed in WV · 127126
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
122 12TH ST, Princeton, WV 24740
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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

VERONICA SUE BROOKS OTR/L
Occupational Therapist
122 12TH ST
PRINCETON, WV 24740
Mercer County (304) 431-5077
KALEIGH ANNMARIE PERKINS PA-C
Physician Assistant
122 12TH ST
PRINCETON, WV 24740
Mercer County (304) 487-7000
SANDRA M. WYNN NP
Nurse Practitioner
122 12TH ST
PRINCETON, WV 24740
Mercer County (304) 487-7000
SAMANTHA DAWN ROBERTS PRSS-SUD
Peer Specialist
122 12TH ST
PRINCETON, WV 24740
Mercer County (304) 320-2192
MATTHEW SNUFFER FNP-BC
Nurse Practitioner (Family)
122 12TH ST
PRINCETON, WV 24740
Mercer County (304) 487-7000
DR. YOGINDER K. YADAV M.D.
Hospitalist
122 12TH ST
PRINCETON, WV 24740
Mercer County (304) 487-7726
HOSPITALIST MEDICINE PHYSICIANS OF WEST VIRGINIA - SOUTH CHARLESTON
Anesthesiology
122 12TH ST
PRINCETON, WV 24740
Mercer County (304) 487-7000
ADRIANNA HALL
Physical Therapist
122 12TH ST
PRINCETON, WV 24740
Mercer County (304) 487-7255

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Johnita Duff's NPI number?

The NPI number for Johnita Duff is 1821993213. It was assigned to this individual provider in the NPPES registry on October 14, 2026.

Where is Johnita Duff located?

Johnita Duff practices at 122 12th St, Princeton, WV 24740. The listed phone number is (304) 557-1164.

What is Johnita Duff's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

When was this NPI record last updated?

The NPPES record for Johnita Duff was last updated on October 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.