Dr. Christopher T. Warren, DO
- Medicare services, 2024
- 327
- Medicare patients, 2024
- 109
- Part D claims, 2024
- 313
- Hospital affiliations
- 2
- Industry payments
- $38
- Practice address
- Corner Of Routes N12 And N7, Fort Defiance, AZ 86504
- Practice phone
- Call (928) 729-8000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Fort Defiance Indian Hospital
Fort Defiance, Arizona
Find Dr. Warren's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Christopher T. Warren is a family medicine physician in Fort Defiance, Arizona
Dr. Warren practices at Fort Defiance Indian Hospital in Fort Defiance, Arizona.
Dr. Warren's NPI, 1720647761, was assigned on June 12, 2019. Dr. Warren holds California license 20A20282.
- NPI
- 1720647761NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2163891557
- NPI enumeration date
- June 12, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (928) 729-8000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Christopher T. Warren practices at Fort Defiance Indian Hospital in Fort Defiance, Arizona
Dr. Warren's primary practice is Fort Defiance Indian Hospital, at Corner Of Routes N12 And N7, Fort Defiance, AZ 86504 in Apache County. The practice phone is (928) 729-8000.
- Fort Defiance Indian HospitalCorner Of Routes N12 And N7, Fort Defiance, AZ 86504 · Apache CountyPhone(928) 729-8000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Christopher T. Warren is affiliated with 3 sites of care and 1 medical group
Dr. Warren's primary practice is Fort Defiance Indian Hospital in Fort Defiance, Arizona. Dr. Warren is also affiliated with Tséhootsooí Medical Center. The medical group on file is Fort Defiance Indian Hospital Board, Inc. Dmand AI also links Dr. Warren to 1 more hospital, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Christopher T. Warren's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Warren practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Fort Defiance Indian Hospital | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Christopher T. Warren is one of 2,549 family medicine physicians in Arizona
Family medicine is Dr. Warren's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Warren is licensed in California.
Specialties and state licenses
- Family medicine, CaliforniaPrimary
Family medicine physicians near Dr. Warren
Counts of family medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Christopher T. Warren billed Medicare for 327 services in 2024
CMS data shows 327 Medicare services from Dr. Warren across 4 procedure codes in 2024, for 109 Medicare patients. Medicare paid $18,371 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Warren's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2182024: 32750%
Dr. Warren compared with the Arizona median for family medicine physicians, 2024
- Dr. Warren
- Arizona median
- Medicare services
- 327vs 330Close to median
- Medicare patients
- 109vs 14826% below
- Part D claims
- 68vs 68290% below
Medians across 2,480 family medicine physicians in Arizona with Dmand AI profiles that report each measure.
Dr. Warren's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Warren and other family medicine physicians in Arizona.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Christopher T. Warren treated 109 Medicare patients in 2024, average age 77
CMS counts 109 Medicare patients who saw Dr. Warren in 2024. The largest group is 85 and over, with 35 patients. 75% of them have high blood pressure, and 64% have diabetes. 61% are also on Medicaid. Their average risk score is 1.88, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Warren's median patient age at 77, with 58% women.
Dr. Warren's Medicare patients by age, 2024
Dr. Warren's Medicare patients by sex, 2024
- Women6358%
- Men4642%
Chronic conditions among Dr. Warren's Medicare patients, 2024
- High blood pressure75%
- Diabetes64%
- High cholesterol58%
- Chronic kidney disease36%
- Arthritis34%
- Alzheimer's and dementia28%
- Mood disorders27%
- Depression24%
Share of Medicare patients with each condition. A patient can have several.
Dr. Warren's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 77
Patient panel by sex, all payers
- Women58%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Christopher T. Warren wrote 313 Medicare Part D claims in 2024
In 2024, Dr. Warren wrote 313 Medicare Part D claims for 61 patients. 70% of them were for generic drugs. CMS names the drug for 68 of them, across 4 drugs with 11 or more claims each, at $1,208 in total drug cost. In 2023, CMS named 13 claims across 1 drug.
Dr. Warren's Part D claims by kind of drug, 2024
- Generic218 claims70%
- Brand-name73 claims23%
- Other22 claims7%
Dr. Warren's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Warren's Part D claims, 2024
- Antibiotics9%29 of 313 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 132024: 68423%
Drugs named by CMS: 4 in 2024, 1 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Christopher T. Warren takes part in Medicare
Dr. Warren accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Christopher T. Warren received $38 in industry payments in 2025
CMS Open Payments shows 1 general payment to Dr. Warren from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. HeartFlow, Inc. paid the most, $38.
Companies that paid Dr. Warren the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Christopher T. Warren's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Christopher T. Warren
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Christopher T. Warren's NPI number?
Dr. Christopher T. Warren's NPI number is 1720647761. It was assigned on June 12, 2019, and it is active in the NPI Registry.
What kind of doctor is Dr. Christopher T. Warren?
Dr. Christopher T. Warren is a family medicine physician in Fort Defiance, Arizona. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Christopher T. Warren practice?
Dr. Warren practices at Corner Of Routes N12 And N7, Fort Defiance, AZ 86504. Dr. Warren's primary practice is Fort Defiance Indian Hospital in Fort Defiance, Arizona. Dmand AI also links Dr. Warren to 1 hospital.
What is Dr. Christopher T. Warren's office phone number?
The practice phone on file for Dr. Warren is (928) 729-8000.
What is Dr. Christopher T. Warren's medical license number?
Dr. Warren holds California license 20A20282.
Which hospitals is Dr. Christopher T. Warren affiliated with?
Dr. Warren is affiliated with Tséhootsooí Medical Center. Dmand AI links Dr. Warren to 1 more hospital.
What medical group is Dr. Christopher T. Warren part of?
Dr. Warren is linked to Fort Defiance Indian Hospital Board, Inc.
Does Dr. Christopher T. Warren accept Medicare?
Yes. CMS data shows Dr. Warren billed Medicare for 327 services in 2024, and Dr. Warren accepts Medicare assignment.
How many Medicare patients does Dr. Christopher T. Warren see?
CMS counts 109 Medicare patients who saw Dr. Warren in 2024, with an average age of 77.
What services does Dr. Christopher T. Warren bill to Medicare?
In 2024, Dr. Warren's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99238) and hospital inpatient care (99231).
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What drugs does Dr. Christopher T. Warren prescribe most?
In 2024 Medicare Part D data, Dr. Warren's most prescribed drugs by claims were Lisinopril, Lantus Solostar and Omeprazole.
Has Dr. Christopher T. Warren received payments from drug or device companies?
CMS Open Payments shows $38 in general payments to Dr. Warren from 1 company from 2025 to 2025. The largest total came from HeartFlow, Inc.
How long has Dr. Christopher T. Warren been practicing?
Dr. Warren graduated from medical school in 2019, 7 years ago.
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