Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Michaela O'Brien
Physical Therapist in Annapolis, MD · enumerated 2021.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1558033530
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Registry record
Entity type Individual (Type 1)
Name Michaela O'Brien
Sex Female
Practice address 2327 Forest Dr Ste D, Annapolis, MD, 21401
Phone (443) 782-7243
Enumeration date Sep 29, 2021
Last updated in NPPES Sep 29, 2021
Taxonomy & licenses
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers Primary
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 Michaela O'Brien?
Michaela O'Brien 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 →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-09-29.