Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Bradly Rowan Duff

Behavior Technician in West Chester, OH · enumerated 2022 · practices at Applied Behavioral Services Mason, LLC.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1821709155

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Registry record

Entity type Individual (Type 1)

Name Bradly Rowan Duff

Sex Male

Practice address West Chester, OH, 45069

Phone (513) 847-4685

Fax (513) 847-4763

Enumeration date Dec 7, 2022

Last updated in NPPES Mar 12, 2024

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

156F00000X Technician/Technologist Eye and Vision Services Providers Secondary

106S00000X Behavior Technician Behavioral Health & Social Service Providers · License RBT-22-240127 (OH) Primary

Other identifiers

Identifier	Type	State	Issuer
997266503	Other	-	UNITED HEALTH CARE

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.

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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 Bradly Duff?

Bradly Duff is registered in NPPES with the primary taxonomy of Behavior Technician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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Alicia Cachat Behavior Analyst · West Chester, OH NPI 1669774873 Brittany Toney Speech-Language Pathologist · West Chester, OH NPI 1427312743 Mollie Kuebler-Decker Clinical Social Worker · West Chester, OH NPI 1467879098 Heather Schneider Assistant Behavior Analyst · West Chester, OH NPI 1639599228 Jordan Marchewka Occupational Therapist · West Chester Township, OH NPI 1124490404 Carla Himmelwright Behavior Analyst · West Chester, OH NPI 1376902957 Andrea Erney Occupational Therapy Assistant · West Chester, OH NPI 1235598293 Amara Baxter Mental Health Counselor · West Chester, OH NPI 1508225491

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-03-12.