Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Allison Brooke Gruber, RD

Registered Dietitian in Aurora, CO · enumerated 2020.

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

National Provider Identifier

1518588623

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Registry record

Entity type Individual (Type 1)

Name Allison Brooke Gruber

Credential RD

Sex Female

Practice address 1775 Aurora Ct, Aurora, CO, 80045

Phone (303) 724-7935

Enumeration date Apr 29, 2020

Last updated in NPPES Jun 15, 2020

Taxonomy & licenses

133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License 86019558 (CO) 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

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 Allison Gruber?

Allison Gruber is registered in NPPES with the primary taxonomy of Registered Dietitian. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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Hal Joseph Medical Physician Assistant · Aurora, CO NPI 1184629602 University Physicians Incorporated Clinical Medical Laboratory · Aurora, CO NPI 1265480511 Cynthia Cain Pediatric Nurse Practitioner · Aurora, CO NPI 1740232347 Howard Chase Pediatric Endocrinology Physician · Aurora, CO NPI 1710991039 Philip Walravens Pediatric Endocrinology Physician · Aurora, CO NPI 1629082946 Sandra Hoops Physician Assistant · Aurora, CO NPI 1538173851 Satish Garg Endocrinology, Diabetes & Metabolism Physician · Aurora, CO NPI 1447264767 Georgeanna Klingensmith Pediatric Endocrinology Physician · Aurora, CO NPI 1265446587

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-06-15.