Registry data as of Aug 27, 2026

Matthew Willis, MD

Internal Medicine Physician · Fort Defiance, AZ

Matthew Willis, MD is an internal medicine physician with a practice address in Fort Defiance, Arizona, and NPI 1487733036, issued on Nov 3, 2006. Check the license on the Arizona Medical Board; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1487733036
Name
Matthew Willis
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
221827 MA
Self-reported in NPPES; status is on the state search
Practice location
Fort Defiance Phs Hospital, Fort Defiance, AZ 86504
Phone
(928) 729-8000
Enumerated
Nov 3, 2006
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at Fort Defiance Phs Hospital

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Joseph Christ, OTROccupational Therapist1750467734
  2. Betty Garner, MAAudiologist1710059613
  3. Kathryn Lucas, CNMAdvanced Practice Midwife1518046879
  4. Brigid McCann, D.D.S.Dentist1952480626
  5. Scott Shin, D.O.Obstetrics & Gynecology Physician1184794349

Verify Matthew Willis in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical BoardCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Open the Arizona license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

19 internal medicine physician records list a Fort Defiance practice address

They are 19 of the 590 NPPES records with a Fort Defiance practice address, and 3,429 internal medicine physician records in Arizona. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other internal medicine physician records in Arizona

  1. Daniel Aaronson, MDTucson, AZ1134865355
  2. Jaber Abawi, MDPayson, AZ1629038542
  3. Demsas Abay, MDPeoria, AZ1720312390
  4. Firas Abbas, M.D. M.P.H.Mesa, AZ1336481407
  5. Hassan Abbas, D.O.Mesa, AZ1477294775
  6. Jalal Abbas, M.D.Sun City West, AZ1205895034
  7. Mohemmedd Khalid AbbasPhoenix, AZ1316366651
  8. Tayeb Abbas, MDSun City West, AZ1093406795
  9. Anam Abbasi, MDPhoenix, AZ1568990695
  10. Hamed Abbaszadegan, MDPhoenix, AZ1407083579

Common questions

What is Matthew Willis, MD's NPI number?

Matthew Willis, MD's National Provider Identifier (NPI) is 1487733036, issued on Nov 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Matthew Willis, MD located?

The NPPES record lists a practice address at Fort Defiance Phs Hospital, Fort Defiance, AZ, 86504. Phone: (928) 729-8000. Providers update this record themselves, so call before visiting.

How can I verify Matthew Willis, MD's license?

Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.