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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. HAROLD DOUGLAS SAMMONS D.C.
NPI 1205829918
Chiropractor in O Fallon, MO

Active since August 27, 2005
108 E ELM ST, O FALLON, MO 63366(636) 272-7900 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Harold Douglas Sammons D.c. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. HAROLD DOUGLAS SAMMONS D.C. (NPI 1205829918) is an individual chiropractor in O Fallon, Missouri, licensed in Missouri (CE 005162) and active in the NPI registry since August 2005.

NPPES Registry Identity

NPI1205829918
Entity TypeIndividualMale
Primary Taxonomy111N00000X
Provider Legal NameDR. HAROLD DOUGLAS SAMMONSCredential: D.C.
Location Address108 E ELM STO Fallon, MO 63366-2602
Mailing Address108 E Elm StO Fallon, MO 63366-2602 · (636) 272-7900
Phone(636) 272-7900
Sole ProprietorNo
Enumeration DateAugust 27, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1205829918 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyChiropractorChiropractic Providers
Taxonomy Code111N00000X
License✔ Licensed in MO · CE 005162
Definition
A provider qualified by a Doctor of Chiropractic (D.C.), licensed by the State and who practices chiropractic medicine -that discipline within the healing arts which deals with the nervous system and its relationship to the spinal column and its interrelationship with other body systems.
108 E ELM ST, O Fallon, MO 63366
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Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Harold Sammons's NPI number?

The NPI number for Harold Sammons is 1205829918. It was assigned to this individual provider in the NPPES registry on August 27, 2005.

Where is Harold Sammons located?

Harold Sammons practices at 108 E Elm St, O Fallon, MO 63366. The listed phone number is (636) 272-7900.

What is Harold Sammons's specialty?

The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.

When was this NPI record last updated?

The NPPES record for Harold Sammons was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 42 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.