David Keebok Warren, M.D.
Hospitalist Physician · Mesa, AZ
David Keebok Warren, M.D. is a hospitalist physician with a practice address in Mesa, Arizona, and NPI 1487947180, issued on May 27, 2011. Check the license (Arizona 56226, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- David Keebok Warren
- Credential
- M.D.
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- 56226 AZ
R0341 TX
Self-reported in NPPES; status is on the state search - Practice location
- 255 W Brown RD, Mesa, AZ 85201
- Phone
- (480) 985-1093
- Enumerated
- May 27, 2011
- Record last updated
- Jun 14, 2023
- Medicare enrollment
- Enrolled (PECOS I20181025001381); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 775 in Arizona → Look up another NPI →
Also registered at 255 W Brown RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify David Keebok Warren in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 56226Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
9.6 times the Medicare Part D claims of the average hospitalist physician in 2024
4,976 Medicare Part D claims for 380 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. 43 claims were for opioids.
Most prescribed
- Eliquis206 claims
- Atorvastatin Calcium193 claims
- Gabapentin155 claims
- Levothyroxine Sodium135 claims
- Amlodipine Besylate132 claims
- Pantoprazole Sodium120 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 3 group practices
- Arizona Post Acute Care Specialists LLCMesa, AZ
- Banner Hospital Based Physicians Arizona LLCApache Junction, AZ
- Lifeline Hospitalist Associates LLCMesa, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David Keebok Warren among 775 hospitalist physician records in Arizona
David Keebok Warren, M.D. is one of 775 hospitalist physician records with a practice address in Arizona. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 42% of them.
- NPI issued2011 · 42% of these records are older, 53% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 80% of these records are
- Graduated2011 · median 2011 among the 618 with a school on file
- Record last updated2023 · 43% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in Arizona
There are 775 hospitalist physician records in Arizona.
All 775 in Arizona → Every provider in Mesa → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Neychelle Rocca, MDMesa, AZ 852011063645778
- Bassil Bayazed, MDMesa, AZ 852021700987773
- Barjinder Bhullar, MDMesa, AZ 852021871560334
- Kern Chaudhry, MDMesa, AZ 852021740460005
- Jacqueline Corcoran, DOMesa, AZ 852021659401834
- Pawan Dhawan, MBBSMesa, AZ 852021073560702
- Subha Gopinath, MDMesa, AZ 852021356356059
- Chad Hammad, MDMesa, AZ 852021225097611
Common questions
What is David Keebok Warren, M.D.'s NPI number?
David Keebok Warren, M.D.'s National Provider Identifier (NPI) is 1487947180, issued on May 27, 2011. An NPI identifies a provider in billing; it is not a license.
Where is David Keebok Warren, M.D. located?
The NPPES record lists a practice address at 255 W Brown RD, Mesa, AZ, 85201. Phone: (480) 985-1093. Providers update this record themselves, so call before visiting.
How can I verify David Keebok Warren, M.D.'s license?
NPPES lists Arizona license number 56226, as entered by the provider. 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 David Keebok Warren, M.D. prescribe under Medicare Part D?
In 2024, David Keebok Warren, M.D. had 4,976 Medicare Part D claims for 380 beneficiaries; the average among hospitalist physician prescribers was 521. 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.