Christopher Warren, DO
Family Medicine Physician · Fort Defiance, AZ
Christopher Warren, DO is a family medicine physician with a practice address in Fort Defiance, Arizona, and NPI 1720647761, issued on Jun 12, 2019. Check the license on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Christopher Warren
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 20A20282 CA
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
- Jun 12, 2019
- Record last updated
- Nov 9, 2022
- Medicare enrollment
- Enrolled (PECOS I20221206003213); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,119 in Arizona → Look up another NPI →
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.
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- Walter Adam, MDFamily Medicine Physician1053368860
- Margaret Adams, ARNPFamily Nurse Practitioner1427455682
- Sandra Adkins, DDSDentist1710918131
- Elizabeth Agre, PT, DPTPhysical Therapist1891268280
- Mohammad Akhavan Heidari, MDSurgery Physician1205041571
Verify Christopher Warren in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average family medicine physician in 2024
313 Medicare Part D claims for 61 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims.
Most prescribed
- Lisinopril25 claims
- Lantus Solostar15 claims
- Omeprazole14 claims
- Synthroid14 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
- 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).
Christopher Warren among 3,119 family medicine physician records in Arizona
Christopher Warren, DO is one of 3,119 family medicine physician records with a practice address in Arizona. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 83% of them.
- NPI issued2019 · 83% of these records are older, 14% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2019 · median 2006 among the 1,775 with a school on file
- Record last updated2022 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
24 family medicine physician records list a practice address in Fort Defiance
They are 24 of the 590 NPPES records with a practice address in Fort Defiance, and 3,119 family medicine physician records in Arizona.
All 3,119 in Arizona → Every provider in Fort Defiance → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Walter Adam, MDFort Defiance, AZ 865041053368860
- Esker Arvanetes Ellis, DOFort Defiance, AZ 865041073625547
- David Barnes, MDFort Defiance, AZ 865041457352205
- Linda Brown Trudel, MDFort Defiance, AZ 865041043262835
- Barbara Defirmian, MDFort Defiance, AZ 865041215150040
- Jennifer England, MDFort Defiance, AZ 865041700824570
- John Henwood, M.D.Fort Defiance, AZ 865041386752293
- John Jutting, MDFort Defiance, AZ 865041265574800
Common questions
What is Christopher Warren, DO's NPI number?
Christopher Warren, DO's National Provider Identifier (NPI) is 1720647761, issued on Jun 12, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Christopher Warren, DO 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 Christopher Warren, DO'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 Christopher Warren, DO prescribe under Medicare Part D?
In 2024, Christopher Warren, DO had 313 Medicare Part D claims for 61 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.