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MARGRETTA LENA WILLIAMS
NPI 1356276455
Assistant Behavior Analyst in Gaithersburg, MD

Active since June 17, 2026
509 QUINCE ORCHARD RD STE 205, GAITHERSBURG, MD 20878(855) 832-6727 Get Directions Write a Review

NPPES record last updated: June 17, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Margretta Lena Williams NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARGRETTA LENA WILLIAMS (NPI 1356276455) is an individual assistant behavior analyst provider in Gaithersburg, Maryland and active in the NPI registry since June 2026. She maintains a secondary practice location in Stuart.

NPPES Registry Identity

NPI1356276455
Entity TypeIndividualFemale
Primary Taxonomy106E00000X
Provider Legal NameMARGRETTA LENA WILLIAMS
Location Address509 QUINCE ORCHARD RD STE 205Gaithersburg, MD 20878-1435
Mailing Address13036 Town Commons DrGermantown, MD 20874-9126
Phone(855) 832-6727
Sole ProprietorNo
Enumeration DateJune 17, 2026
NPPES CertifiedJune 17, 2026
✔ NPI 1356276455 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAssistant Behavior AnalystBehavioral Health & Social Service Providers
Taxonomy Code106E00000X
Definition
An assistant behavior analyst is qualified by Behavior Analyst Certification Board certification and/or a state-issued license or credential in behavior analysis to practice under the supervision of an appropriately credentialed professional behavior analyst. An assistant behavior analyst delivers services consistent with the dimensions of applied behavior analysis and supervision requirements defined in state laws or regulations and/or national certification standards. Common services may include, but are not limited to, conducting behavioral assessments, analyzing data, writing behavior-analytic treatment plans, training and supervising others in implementation of components of treatment plans, and direct implementation of treatment plans.
509 QUINCE ORCHARD RD STE 205, Gaithersburg, MD 20878
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Secondary Practice Location 1

Location 17108 S Kanner HwyStuart, FL 34997-7462 · Phone (855) 832-6727

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JARED SALAZAR
Behavior Technician
509 QUINCE ORCHARD RD STE 205
GAITHERSBURG, MD 20878
Montgomery County (855) 832-6727
NEHI PATHAK
Behavior Technician
509 QUINCE ORCHARD RD STE 205
GAITHERSBURG, MD 20878
Montgomery County (185) 583-2672
NEMATULLAH NABIZADA
Behavior Technician
509 QUINCE ORCHARD RD STE 205
GAITHERSBURG, MD 20878
Montgomery County (855) 832-6727
EMILY ANN BUTWINICK
Behavior Technician
509 QUINCE ORCHARD RD STE 205
GAITHERSBURG, MD 20878
Montgomery County (855) 832-6727
ERIANAE RICHARDS
Behavior Technician
509 QUINCE ORCHARD RD STE 205
GAITHERSBURG, MD 20878
Montgomery County (855) 832-6727
NIKEEMA ARNETTE
Behavior Technician
509 QUINCE ORCHARD RD STE 205
GAITHERSBURG, MD 20878
Montgomery County (855) 832-6727
MABEATRIZ CAJAYON
Behavior Technician
509 QUINCE ORCHARD RD STE 205
GAITHERSBURG, MD 20878
Montgomery County (855) 832-6727
MICHELLE SUZANNE AXT
Behavior Technician
509 QUINCE ORCHARD RD STE 205
GAITHERSBURG, MD 20878
Montgomery County (855) 832-6727

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Margretta Williams's NPI number?

The NPI number for Margretta Williams is 1356276455. It was assigned to this individual provider in the NPPES registry on June 17, 2026.

Where is Margretta Williams located?

Margretta Williams practices at 509 Quince Orchard Rd Ste 205, Gaithersburg, MD 20878. The listed phone number is (855) 832-6727.

What is Margretta Williams's specialty?

The primary specialty registered for this NPI is Assistant Behavior Analyst with taxonomy code 106E00000X.

When was this NPI record last updated?

The NPPES record for Margretta Williams was last updated on June 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 48 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.