Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Marian Mackenzie, PT
Physical Therapist in Bel Air, MD · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1174686430
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Registry record
Entity type Individual (Type 1)
Name Marian Mackenzie
Credential PT
Sex Female
Practice address 658 Boulton St, Suite A, Bel Air, MD, 21014
Phone (301) 581-8054
Fax (301) 564-0284
Enumeration date Dec 18, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 18140 (MD) 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
How do I verify Marian Mackenzie's NPI record?
Cross-check NPI 1174686430 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1174686430 active?
Yes, as of the latest NPPES snapshot, NPI 1174686430 is active (record last updated 2007-07-08).
Other providers at this practice address
Browse all → Karie Johnson Athletic Trainer · Bel Air, MD NPI 1427110535 Steven Luca Physical Therapist · Bel Air, MD NPI 1043373301 Lorraine Stuchinski Physical Therapist · Bel Air, MD NPI 1164585428 Sharon Biffoni Occupational Therapist · Bel Air, MD NPI 1932262201 James Fischer Physical Therapist · Bel Air, MD NPI 1922161207 Kristina Spencer Physical Therapist · Bel Air, MD NPI 1720141005 Therese Feehley Physical Therapist · Bel Air, MD NPI 1740343011 Sandra Goscinski Occupational Therapist · Bel Air, MD NPI 1538223649
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.