Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Donald P Ash Jr., PT
Physical Therapist in Rochester, NH · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1124002431
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Registry record
Entity type Individual (Type 1)
Name Donald P Ash Jr.
Credential PT
Sex Male
Practice address 243 Rochester Hill Rd, Rochester, NH, 03867
Phone (603) 332-1881
Fax (603) 332-6882
Enumeration date Nov 30, 2005
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 0401 (NH) Primary
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License PT446 (ME) Secondary
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
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.
What specialty is Donald Ash?
Donald Ash 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.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.