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Internal Medicine

Colten Z. Dillinger, DO

Works at hospitals in Chandler, AZ · Arizona

Summary

Dr. Colten Z. Dillinger, DO is an internal medicine doctor at 4530 E Muirwood Dr, Suite 105, Phoenix, AZ 85048. Phone: (480) 961-2303. Accepts Medicare assignment. NPI 1275282493. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 4530 E Muirwood Dr, Suite 105, Phoenix, AZ 85048 · Directions
  • Phone: (480) 961‑2303
  • Medicare: Accepts Medicare assignment
  • Hospital: Chandler Regional Medical Center
  • Group practice: Aia Hospitalists LLC
  • Medical school: Arizona College Of Osteopathic Medicine Mid Western University · graduated 2022 (4 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Colten Z. Dillinger, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Colten Z. Dillinger accept Medicare assignment?
Yes. Medicare's clinician data says Colten Z. Dillinger accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
What is Colten Z. Dillinger's NPI number?
1275282493. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Colten Z. Dillinger works

Medicare's Facility Affiliation Data lists Colten Z. Dillinger at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Colten Z. Dillinger is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Colten Z. Dillinger as a member of this group (CMS data updated October 2, 2026).

  • Aia Hospitalists LLC53 clinicians in the group

Specialties

Find other Internal Medicine doctors in Arizona →

Other internal medicine doctors in Phoenix

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

All internal medicine doctors in Phoenix →

Other clinicians in Aia Hospitalists LLC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialDO
Medical schoolArizona College Of Osteopathic Medicine Mid Western University
Graduation year2022 (4 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1275282493
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. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  5. Medicare Care Compare — official Medicare tool to look up clinicians