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DR. MARSHALL M. WILLIS D.C.
NPI 1942382890
Chiropractor in Overgaard, AZ

Active since October 19, 2006
2947 HWY 260, #3, OVERGAARD, AZ 85933(928) 535-6421 Get Directions Write a Review

NPPES record last updated: June 25, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Marshall M. Willis D.c. NPPES

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

DR. MARSHALL M. WILLIS D.C. (NPI 1942382890) is an individual chiropractor in Overgaard, Arizona, licensed in Arizona (5288) and active in the NPI registry since October 2006.

NPPES Registry Identity

NPI1942382890
Entity TypeIndividualMale
Primary Taxonomy111N00000X
Provider Legal NameDR. MARSHALL M. WILLISCredential: D.C.
Location Address2947 HWY 260, #3Overgaard, AZ 85933
Mailing Address816 N 8th AveThatcher, AZ 85552-5697 · (928) 240-2792
Phone(928) 535-6421
Sole ProprietorNo
Enumeration DateOctober 19, 2006
Last NPPES UpdateJune 25, 2025
NPPES CertifiedJune 25, 2025
✔ NPI 1942382890 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyChiropractorChiropractic Providers
Taxonomy Code111N00000X
License✔ Licensed in AZ · 5288
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.
2947 HWY 260, Overgaard, AZ 85933
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Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MARSHALL M. WILLIS D.C., P.C.
Chiropractor
2947 HWY 260, 3
OVERGAARD, AZ 85933
Navajo County (928) 535-6421
JENNIFER SMITH OWENS SLPA
Specialist/Technologist (Speech-Language Assistant)
2947 HWY 260, STE.3
OVERGAARD, AZ 85933
Navajo County (928) 240-4463

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 Marshall Willis's NPI number?

The NPI number for Marshall Willis is 1942382890. It was assigned to this individual provider in the NPPES registry on October 19, 2006.

Where is Marshall Willis located?

Marshall Willis practices at 2947 Hwy 260 #3, Overgaard, AZ 85933. The listed phone number is (928) 535-6421.

What is Marshall Willis'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 Marshall Willis was last updated on June 25, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months 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.