Nexx Step Health & Diagnostics Center
NPI 1538057740 · Clinical Medical Laboratory · Saint Louis, MO
Nexx Step Health & Diagnostics Center is a Clinical Medical Laboratory organization in Saint Louis, MO (NPI 1538057740).
Provider details
- NPI number
- 1538057740
- Entity type
- Organization
- Primary specialty
- Clinical Medical LaboratoryLaboratories
- Organization subpart
- No
- Authorized official
- Tashay Williams, Owner(314) 319-3651
Specialties & taxonomies
Laboratories
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2025-06-26
- Last updated
- 2025-07-18
- Certified
- 2025-07-18
Frequently asked questions
- What is Nexx Step Health & Diagnostics Center's NPI number?
- Nexx Step Health & Diagnostics Center's National Provider Identifier (NPI) is 1538057740, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Nexx Step Health & Diagnostics Center?
- Nexx Step Health & Diagnostics Center is classified in the NPPES registry as Clinical Medical Laboratory (Laboratories).
- Where is Nexx Step Health & Diagnostics Center located?
- Nexx Step Health & Diagnostics Center's practice location on file with NPPES is 3156 Pershall Rd Ste 132, Saint Louis, MO 63136-4406.
- What is Nexx Step Health & Diagnostics Center's phone number?
- The practice phone number listed in the NPPES registry for Nexx Step Health & Diagnostics Center is (314) 319-3651.
- Who is the authorized official for Nexx Step Health & Diagnostics Center?
- The authorized official listed on Nexx Step Health & Diagnostics Center's NPPES record is Tashay Williams, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Nexx Step Health & Diagnostics Center's NPI active?
- Yes — Nexx Step Health & Diagnostics Center's NPI (1538057740) is active in the NPPES registry as of the last update on 2025-07-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.