NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Ms. Allison Marco, RD

Registered Dietitian in Mc Lean, VA · enumerated 2012 · practices at Commonhealth Chiropractic, PC.

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

National Provider Identifier

1194090928

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Registry record

Entity type Individual (Type 1)
Name Ms. Allison Marco
Credential RD
Sex Female
Practice address Mc Lean, VA, 22101
Enumeration date Mar 12, 2012
Last updated in NPPES Mar 12, 2012

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

Taxonomy & licenses

133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License 1008496 (VA) Primary
RD · Registered Dietitian: A nutrition professional credentialed by the Commission on Dietetic Registration. About the RD credential

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.

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Frequently asked questions

How do I verify Allison Marco's NPI record?
Cross-check NPI 1194090928 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1194090928 active?
Yes, as of the latest NPPES snapshot, NPI 1194090928 is active (record last updated 2012-03-12).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-03-12.