Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Callie Diamonstein, MS, LCGC

Genetic Counselor (M.S.) in Dallas, TX · enumerated 2018.

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

National Provider Identifier

1154823110

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Registry record

Entity type Individual (Type 1)

Name Callie Diamonstein

Credential MS, LCGC

Sex Female

Practice address 5323 Harry Hines Blvd, Dallas, TX, 75390

Phone (214) 648-0860

Enumeration date Mar 6, 2018

Last updated in NPPES May 15, 2019

Taxonomy & licenses

207SG0203X Clinical Molecular Genetics Physician Allopathic & Osteopathic Physicians · License 0139000042 (VA) Secondary

170300000X Genetic Counselor (M.S.) Other Service Providers · License 0139000042 (VA) Primary

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 specialty is Callie Diamonstein?

Callie Diamonstein is registered in NPPES with the primary taxonomy of Genetic Counselor (M.S.). The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-05-15.