NPPES file of Aug 9, 2026

Chuck L. Ball, MD

Internal Medicine Physician · Fort Defiance, AZ

Chuck L. Ball, MD is an internal medicine physician with a practice address in Fort Defiance, Arizona, and NPI 1821253535, issued on Jul 22, 2008. Check the license on the Arizona Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1821253535
Name
Chuck L. Ball
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
0101250915 VA
Self-reported in NPPES; status is on the state search
Practice location
Corner OF Route N12 And N7, Fort Defiance, AZ 86504
Phone
(928) 729-8000
Enumerated
Jul 22, 2008
Record last updated
Aug 3, 2026
Medicaid ID
1821253535 VA
Medicare enrollment
Enrolled (PECOS I20240517000708); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at Corner OF Route N12 And N7

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

  1. Moaz Abulfaraj, MDSurgery Physician1861797193
  2. Walter Adam, MDFamily Medicine Physician1053368860
  3. Margaret Adams, ARNPFamily Nurse Practitioner1427455682
  4. Sandra Adkins, DDSDentist1710918131
  5. Elizabeth Agre, PT, DPTPhysical Therapist1891268280
  6. Mohammad Akhavan Heidari, MDSurgery Physician1205041571

Verify Chuck L. Ball 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

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87% fewer Medicare Part D claims than the average internal medicine physician in 2024

421 Medicare Part D claims for 90 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.

  1. Chuck Ball421
  2. Specialty average3,176

Most prescribed

  1. Lisinopril45 claims
  2. Losartan Potassium21 claims
  3. Atorvastatin Calcium19 claims
  4. Naproxen19 claims
  5. Fluticasone Propionate18 claims
  6. Gabapentin18 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. The Fort Defiance Indian Hospital Board, IncorporationFort Defiance, AZ

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

23 internal medicine physician records list a practice address in Fort Defiance

They are 23 of the 590 NPPES records with a practice address in Fort Defiance, and 2,853 internal medicine physician records in Arizona.

Other internal medicine physician records in Arizona

  1. Daniel Aaronson, MDTucson, AZ1134865355
  2. Constantia Abarikwu, MDPhoenix, AZ1497832620
  3. Jaber Abawi, MDPayson, AZ1629038542
  4. Demsas Abay, MDPeoria, AZ1720312390
  5. Firas Abbas, M.D. M.P.H.Mesa, AZ1336481407
  6. Hassan Abbas, D.O.Mesa, AZ1477294775
  7. Jalal Abbas, M.D.Sun City West, AZ1205895034
  8. Tayeb Abbas, MDSun City West, AZ1093406795
  9. Hamed Abbaszadegan, MDPhoenix, AZ1407083579
  10. Kristopher Abbate, MDTucson, AZ1184112401

Common questions

What is Chuck L. Ball, MD's NPI number?

Chuck L. Ball, MD's National Provider Identifier (NPI) is 1821253535, issued on Jul 22, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Chuck L. Ball, MD located?

The NPPES record lists a practice address at Corner OF Route N12 And N7, Fort Defiance, AZ, 86504. Phone: (928) 729-8000. Providers update this record themselves, so call before visiting.

How can I verify Chuck L. Ball, 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.

How much does Chuck L. Ball, MD prescribe under Medicare Part D?

In 2024, Chuck L. Ball, MD had 421 Medicare Part D claims for 90 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.