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Internal Medicine

Chadd Nelson, OD

Sees patients in Flagstaff, AZ · Arizona

Summary

Chadd Nelson, OD (Internal Medicine) is enrolled with Medicare at 2 practice locations in Flagstaff, AZ. NPI 1619904679. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Chadd Nelson, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
24Years since medical school (graduated 2002)
MaleGender (as listed)
Native Americans for Community Action IncGroup practice

Quick answers

Where does Chadd Nelson see patients?
Medicare's clinician data lists 2 practice locations, including Flagstaff, AZ. Call before your visit to confirm the address.
What is Chadd Nelson's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Chadd Nelson accept Medicare assignment?
Yes. Medicare's clinician data says Chadd Nelson accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Chadd Nelson?
(928) 773-1245, as listed in official Medicare / NPI Registry data.
What is Chadd Nelson's NPI number?
1619904679. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Chadd Nelson is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Chadd Nelson as a member of this group (CMS data updated 2026-10-02).

  • Native Americans for Community Action Inc12 clinicians in the group

Specialties

Find other clinicians: Internal Medicine, Arizona →

Other internal medicine doctors in Flagstaff

Clinicians with the same Medicare primary specialty in Flagstaff, AZ — not a recommendation.

All internal medicine doctors in Flagstaff →

Clinician information

CredentialOD
Graduation year2002
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1619904679
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians