NPI Portal NPI Lookup & Verification

William Zeallor

William Zeallor is a Behavior Analyst provider (Behavior Analyst) practicing in Eldersburg, MD, registered in the NPPES registry with NPI 1730856899 since 2021.

✓ Active NPI ✓ Valid NPI checksum

NPI 1730856899
Entity type Individual (Type 1)
Name William Zeallor
Sex Male
Practice address 6505 RIDENOUR WAY E, Eldersburg, MD, 21784
Phone 4103817171
Fax 4103814480
Enumeration date 2021-08-26
Last updated in NPPES 2021-08-26

Taxonomy & licenses

Taxonomy code Specialty Primary License State
103K00000X Behavior Analyst Primary LBA808 MD
Copy-ready billing details
Provider: William Zeallor
NPI: 1730856899
Taxonomy: 103K00000X (Behavior Analyst)
Address: 6505 RIDENOUR WAY E, Eldersburg, MD, 21784

Other providers at this practice address

NPI Name Type Specialty Location
1104296466 Daljaco Organization In Home Supportive Care Agency Eldersburg, MD
1740957737 Carrie Hagstrom Individual Behavior Analyst Eldersburg, MD
1629789227 Humanim Mental Health Services LLC Organization Behavior Analyst Eldersburg, MD
1942913926 Sennette Fontaine Individual Behavior Technician Eldersburg, MD
1144922626 Sarah Linthicum Individual Behavior Technician Eldersburg, MD
1265134746 Kimberly Hawkins Individual Behavior Technician Eldersburg, MD
1194417733 Johanne Jean-Baptiste Individual Behavior Technician Eldersburg, MD
1447934823 Abigail Morrison Individual Behavior Technician Eldersburg, MD

Verify this record

Cross-check NPI 1730856899 against the authoritative CMS record: view William Zeallor 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

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 William Zeallor?
William Zeallor is registered in NPPES with the primary taxonomy of Behavior Analyst. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2021-08-26.