Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Alexander Holdren, DPT
Physical Therapist in Fenton, MI · enumerated 2018.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1689140071
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Registry record
Entity type Individual (Type 1)
Name Alexander Holdren
Credential DPT
Sex Male
Practice address 14229 Torrey Rd, Fenton, MI, 48430
Phone (810) 433-4600
Enumeration date Oct 23, 2018
Last updated in NPPES Oct 11, 2021
Taxonomy & licenses
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License PTL.0016671 (CO) Secondary
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 5501018898 (MI) Primary
DPT · Doctor of Physical Therapy: A physical therapist holding the clinical doctorate now standard for the profession.
About the DPT 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 Alexander Holdren?
Alexander Holdren 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.
Other providers at this practice address
Browse all → James Hirt Foot & Ankle Surgery Podiatrist · Fenton, MI NPI 1558557363 Hirt Foot and Ankle Specialists P.C. Foot & Ankle Surgery Podiatrist · Fenton, MI NPI 1497944326 Erin Holdren Otis Podiatrist · Fenton, MI NPI 1831452036 Hirt Foot and Ankle Specialists P C Customized Equipment (DME) · Fenton, MI NPI 1871047779 Char Combs Rehabilitation and Consultation Services Inc Home Health Agency · Fenton, MI NPI 1770035321
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-10-11.