AARON JOHNSTON, COTA — NPI 1306539119 (Licensed & Credentialed Occupational Therapy Assistant in EUREKA, MO)

CMS-1500 Box 24J / 33a • NPI

1306539119

Type 1 Individual Rendering/Ordering

HIPAA NUCC Taxonomy • CMS Code

224Z00000X

Licensed & Credentialed Occupational Therapy Assistant

Box 32 Service Location & ZIP+4

400 SUMMERVILLE BLVD, EUREKA, MO, 63025-2316

✓ 9-Digit EDI 837 ZIP+4 (63025-2316)

Practice Phone & Referral Fax

(636) 200-3656

Direct NPPES Verification Line

✓ HHS OIG LEIE Sanction Screening — VERIFIED CLEAR: NPI 1306539119 (AARON JOHNSTON, COTA) has 0 active federal exclusions across all 84,224 HHS OIG LEIE sanction records (Database Verified: 2026-11-11).

CMS Medicare Order & Referring PECOS Eligibility

This practitioner does not currently appear in the CMS individual Order & Referring PECOS file (may practice in pediatrics, commercial-only networks, or hospital-employed settings).

Official CMS NPPES Credential & Practice Profile

10-Digit NPI Number	`1306539119` (NPI-1 Individual Practitioner)
Provider / Legal Name	AARON JOHNSTON, COTA
Plain-English Specialty	Licensed & Credentialed Occupational Therapy Assistant NUCC Code: `224Z00000X` (Occupational Therapy Assistant)
Certifying / Licensing Body	State Medical / Healthcare Licensing Board & National Specialty Board
Practice Location Address	400 SUMMERVILLE BLVD, EUREKA, MO, 63025-2316
Practice Telephone / Fax	Tel: (636) 200-3656
Administrative Mailing Address	1335 OAKRIDGE ESTATES DR, SAINT CLAIR, MO, 63077-2327
Enumeration & Last Sync	Enumerated: 2023-05-29 \| CMS Record Updated: 2023-05-29

Clinic Location, Accessibility & Directions

📍 Practice Location & Patient Access

400 SUMMERVILLE BLVD, EUREKA, MO, 63025-2316

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Plain-English Taxonomy & CMS Crosswalk (224Z00000X)

What Does Taxonomy Code 224Z00000X Mean?

In the HIPAA National Uniform Claim Committee (NUCC) classification, code 224Z00000X translates to:
"Licensed & Credentialed Occupational Therapy Assistant"

CMS-1500 Medicare Specialty Crosswalk: Standard HIPAA X12N 837P / CMS-1500
Certifying / Accrediting Authority: State Medical / Healthcare Licensing Board & National Specialty Board
Clinical Scope: Consult a verified Occupational Therapy Assistant for specialized diagnostic evaluation, treatment planning, and continuity of care.

Specialty Clinical Procedures & Therapeutic Classes

Standard Scope of Care (AARON JOHNSTON, COTA)

Typical CPT / Diagnostic Procedures:

Comprehensive Outpatient & Inpatient Clinical Evaluation (CPT 99202–99215)
Diagnostic Workup, Laboratory Ordering & Evidence-Based Care Coordination
Preventive Screening, Patient Counseling & Multidisciplinary Referral

Common Therapeutic Classes:

Evidence-Based Specialty Pharmacotherapy & Preventive Regimens (CMS Part D Standard)

All Registered NUCC Taxonomies & State Licenses

Taxonomy Code & Plain-English Description	State License & Primary Status
`224Z00000X` — Occupational Therapy Assistant Plain English: Licensed & Credentialed Occupational Therapy Assistant	State: MO \| License: `2012035248` \| Primary: Yes (Primary)

Medical Billing, RCM & Hospital Credentialing Teams:

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AARON JOHNSTON, COTA (NPI #1306539119)