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

Dr. Harry Ellsworth Siegrist III, D.C, L.D.O.

Optician in Austell, GA · enumerated 2007.

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

National Provider Identifier

1851434476

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Registry record

Entity type Individual (Type 1)

Name Dr. Harry Ellsworth Siegrist III

Credential D.C, L.D.O.

Sex Male

Practice address Austell, GA, 30168

Phone (770) 941-3802

Fax (770) 739-2020

Enumeration date Feb 14, 2007

Last updated in NPPES Sep 11, 2025

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

Taxonomy & licenses

111NX0800X Orthopedic Chiropractor Chiropractic Providers · License 2148 (GA) Secondary

111NX0800X Orthopedic Chiropractor Chiropractic Providers · License 4508 (FL) Secondary

111NX0800X Orthopedic Chiropractor Chiropractic Providers · License 3452-012 (WI) Secondary

156FX1800X Optician Eye and Vision Services Providers · License 645 (GA) Secondary

156FX1800X Optician Eye and Vision Services Providers · License 875 (FL) Primary

DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC 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

What specialty is Harry Siegrist?

Harry Siegrist is registered in NPPES with the primary taxonomy of Optician. 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.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.