Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ms. Diane Priscilla Brent-Farmer, OT
Occupational Therapist in Largo, MD · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1356489447
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Registry record
Entity type Individual (Type 1)
Name Ms. Diane Priscilla Brent-Farmer
Credential OT
Sex Female
Practice address 1221 Mercantile Ln, Largo, MD, 20774
Phone (301) 618-5500
Fax (301) 816-7170
Enumeration date Feb 2, 2007
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 01406 (MD) Primary
OT · Occupational Therapist: A licensed therapist helping patients develop or recover skills for daily living and working.
About the OT 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
Where does Diane Brent-Farmer practice?
The practice location on file with NPPES is in Largo, MD. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Diane Brent-Farmer?
The National Provider Identifier (NPI) for Diane Brent-Farmer is 1356489447, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.