Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Leah Olewiler, MS, CGC

Genetic Counselor (M.S.) in Jackson, MS · enumerated 2016 · practices at University of Miss Medical Center.

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

National Provider Identifier

1639521529

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Registry record

Entity type Individual (Type 1)

Name Leah Olewiler

Credential MS, CGC

Sex Female

Practice address 2500 North State St, C/O Pediatric Genetics, Jackson, MS, 39216

Phone (601) 984-1001

Fax (601) 984-1916

Enumeration date Jul 5, 2016

Last updated in NPPES Dec 31, 2018

Taxonomy & licenses

170300000X Genetic Counselor (M.S.) Other Service Providers 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

Is NPI 1639521529 active?

Yes, as of the latest NPPES snapshot, NPI 1639521529 is active (record last updated 2018-12-31).

How do I verify Leah Olewiler's NPI record?

Cross-check NPI 1639521529 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-12-31.