Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

A1 Diagnostic Solutions

Q: What type of organization is A1 Diagnostic Solutions?

A1 Diagnostic Solutions is registered in NPPES as a Phlebotomy Technician (its primary provider taxonomy).

Phlebotomy Technician in Petersburg, VA · enumerated 2026 · authorized official Sonja Clark, Owner.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1083538748

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Registry record

Entity type Organization (Type 2)

Legal business name A1 Diagnostic Solutions

Practice address 119 N Sycamore St, Petersburg, VA, 23803

Phone (804) 943-3866

Fax (804) 533-3467

Enumeration date Aug 6, 2026

Last updated in NPPES Aug 6, 2026

Taxonomy & classification

246RP1900X Phlebotomy Technician Technologists, Technicians & Other Technical Service Providers Primary

Authorized official

Name Sonja Clark

Title Owner

Phone (804) 943-3866

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 → Validate an NPI →

Frequently asked questions

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is A1 Diagnostic Solutions?

A1 Diagnostic Solutions is registered in NPPES as a Phlebotomy Technician (its primary provider taxonomy).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-08-06.