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MILISSA A. UNDERWOOD BCBA
NPI 1922303304
Behavior Analyst in Saint Louis, MO

Active since January 17, 2011
12430 TESSON FERRY RD # 102, SAINT LOUIS, MO 63128(855) 832-6727 Get Directions Write a Review

NPPES record last updated: February 20, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Nov 17, 2021, Jun 28, 2018 (2 updates tracked since 2018).

About Milissa A. Underwood Bcba NPPES

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

MILISSA A. UNDERWOOD BCBA (NPI 1922303304) is an individual behavior analyst provider in Saint Louis, Missouri, licensed in (1-09-5248) and active in the NPI registry since January 2011. She maintains 2 additional practice locations.

NPPES Registry Identity

NPI1922303304
Entity TypeIndividualFemale
Primary Taxonomy103K00000X
Provider Legal NameMILISSA A. UNDERWOODCredential: BCBA
Location Address12430 TESSON FERRY RD # 102Saint Louis, MO 63128-2702
Mailing Address7108 S Kanner HwyStuart, FL 34997-7462 · (855) 832-6727
Phone(855) 832-6727
Sole ProprietorNo
Enumeration DateJanuary 17, 2011
Last NPPES UpdateFebruary 20, 20262 updates tracked since enumeration
NPPES CertifiedFebruary 20, 2026
✔ NPI 1922303304 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyBehavior AnalystBehavioral Health & Social Service Providers
Taxonomy Code103K00000X
License✔ Licensed · 1-09-5248
Definition
A behavior analyst is qualified by at least a master's degree and Behavior Analyst Certification Board certification and/or a state-issued credential (such as a license) to practice behavior analysis independently. Behavior analysts provide the required supervision to assistant behavior analysts and behavior technicians. A behavior analyst delivers services consistent with the dimensions of applied behavior analysis. Common services may include, but are not limited to, conducting behavioral assessments, analyzing data, writing and revising behavior-analytic treatment plans, training others to implement components of treatment plans, and overseeing implementation of treatment plans.
12430 TESSON FERRY RD # 102, Saint Louis, MO 63128
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Secondary Practice Locations 2

Location 17108 S Kanner HwyStuart, FL 34997-7462 · Phone (855) 832-6727
Location 2400 W Capitol AveLittle Rock, AR 72201-3436 · Phone (855) 832-6727

Other Identifiers 1

Medicaid018534800FL

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Florida Blue (BlueCross BlueShield FL), Florida Blue HMO (a BlueCross BlueShield FL company).Insurance ›

Other Providers at the Same Location NPPES 3

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

HAYLEE STRAUSER
Behavior Analyst
12430 TESSON FERRY RD # 102
SAINT LOUIS, MO 63128
St. Louis County (636) 584-1787
KIMBERLAN MINNET PERKINS
Behavior Technician
12430 TESSON FERRY RD # 102
SAINT LOUIS, MO 63128
St. Louis County (314) 917-7338
AMANDA KAY BARRON
Assistant Behavior Analyst
12430 TESSON FERRY RD # 102
SAINT LOUIS, MO 63128
St. Louis 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 Milissa Underwood's NPI number?

The NPI number for Milissa Underwood is 1922303304. It was assigned to this individual provider in the NPPES registry on January 17, 2011.

Where is Milissa Underwood located?

Milissa Underwood practices at 12430 Tesson Ferry Rd # 102, Saint Louis, MO 63128. The listed phone number is (855) 832-6727.

What is Milissa Underwood's specialty?

The primary specialty registered for this NPI is Behavior Analyst with taxonomy code 103K00000X.

What insurance does Milissa Underwood accept?

Health plans from Florida Blue (BlueCross BlueShield FL) and Florida Blue HMO (a BlueCross BlueShield FL company) list Milissa Underwood as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Milissa Underwood was last updated on February 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months 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.