Fundamental Behavior Services, LLC
Fundamental Behavior Services, LLC is a healthcare organization registered as In Home Supportive Care Agency in Gaithersburg, MD, holding Type 2 (organization) NPI 1437431624 since 2011. The authorized official on file is Colleen Williams, Executive Director.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1437431624 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | Fundamental Behavior Services, LLC |
| Practice address | 554 N FREDERICK AVE # 345, Gaithersburg, MD, 20877 |
| Phone | 2403617178 |
| Enumeration date | 2011-09-13 |
| Last updated in NPPES | 2012-02-28 |
Authorized official
| Name | Colleen Williams |
|---|---|
| Title | Executive Director |
| Phone | 2403617178 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 251C00000X | Developmentally Disabled Services Day Training Agency | Secondary | — | — |
| 251S00000X | Community/Behavioral Health Agency | Secondary | — | — |
| 252Y00000X | Early Intervention Provider Agency | Secondary | — | — |
| 103K00000X | Behavior Analyst | Secondary | 1-11-8537 | CT |
| 253Z00000X | In Home Supportive Care Agency | Primary | — | — |
Copy-ready billing details
Provider: Fundamental Behavior Services, LLC NPI: 1437431624 Taxonomy: 253Z00000X (In Home Supportive Care Agency) Address: 554 N FREDERICK AVE # 345, Gaithersburg, MD, 20877
Verify this record
Cross-check NPI 1437431624 against the authoritative CMS record: view Fundamental Behavior Services, LLC on the official NPPES registry .
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. Read the full guide or validate an NPI number.
Frequently asked questions
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2012-02-28.