Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Nancy Groff, P.T.
Physical Therapist in Prosser, WA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1659498764
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Registry record
Entity type Individual (Type 1)
Name Mrs. Nancy Groff
Credential P.T.
Sex Female
Practice address 1109 Meade Ave, Prosser, WA, 99350
Phone (509) 786-6626
Fax (509) 786-6712
Enumeration date Mar 23, 2007
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License PT00009720 (WA) Primary
PT · Physical Therapist: A licensed movement specialist treating injury and disability through exercise and rehabilitation.
About the PT credential
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
What specialty is Nancy Groff?
Nancy Groff is registered in NPPES with the primary taxonomy of Physical Therapist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Other providers at this practice address
Browse all → Joseph Ashton Physical Therapist · Prosser, WA NPI 1730206012 Denise Fulwyler Occupational Therapist · Prosser, WA NPI 1346367364 Elizabeth Bogen Whiteman Speech-Language Pathologist · Prosser, WA NPI 1033237623 Boguslawa Sliwinski Physical Therapy Assistant · Prosser, WA NPI 1598900987 Anna York Physical Therapy Assistant · Prosser, WA NPI 1821236860 Cynthia Lane Pediatric Occupational Therapist · Prosser, WA NPI 1326390550 Maria Ayala Clinical Social Worker · Prosser, WA NPI 1053800185
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.