NPI Portal NPI Lookup & Verification

Ryan L Estep, CDCA

Ryan L Estep is a Addiction (Substance Use Disorder) Counselor provider (Counselor) practicing in Springfield, OH, registered in the NPPES registry with NPI 1639870983 since 2023.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1639870983
Entity type Individual (Type 1)
Name Ryan L Estep
Credential CDCA
Sex Male
Practice address Springfield, OH, 45503
Phone 8665342639
Fax 8004807578
Enumeration date 2023-03-14
Last updated in NPPES 2025-10-16

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code Specialty Primary License State
101YA0400X Addiction (Substance Use Disorder) Counselor Primary CDCA.183120 OH

Other identifiers

Identifier Type State Issuer
0012937 Medicaid OH
Copy-ready billing details
Provider: Ryan Estep, CDCA
NPI: 1639870983
Taxonomy: 101YA0400X (Addiction (Substance Use Disorder) Counselor)
Address: Springfield, OH, 45503

Other providers at this practice address

NPI Name Type Specialty Location
1629277421 Debbie Karstu Individual Nurse Practitioner Springfield, OH
1033651658 Yolanda Board Individual Professional Counselor Springfield, OH
1912444514 Tracie Bishop Individual Social Worker Springfield, OH
1578075107 Christopher Worthen Individual Addiction (Substance Use Disorder) Counselor Springfield, OH
1669989265 Jennifer Guzman-Muelling Individual Mental Health Counselor Springfield, OH
1194223396 Tara Muhammad Individual Case Manager/Care Coordinator Springfield, OH
1669189064 Amanda Clark Individual Registered Nurse Springfield, OH
1629844899 Olivia Washington Individual Case Manager/Care Coordinator Springfield, OH

Verify this record

Cross-check NPI 1639870983 against the authoritative CMS record: view Ryan L Estep 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 Ryan Estep?
Ryan Estep is registered in NPPES with the primary taxonomy of Addiction (Substance Use Disorder) Counselor. 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 2025-10-16.