Robert Duane Barker, MD
Internal Medicine Physician · Prescott, AZ
Robert Duane Barker, MD is an internal medicine physician with a practice address in Prescott, Arizona, and NPI 1710924196, issued on Jun 2, 2006. Check the license (Arizona 9210, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Robert Duane Barker
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 9210 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 1042 Willow Creek RD A101-491, Prescott, AZ 86301
- Phone
- (928) 899-8739
- Enumerated
- Jun 2, 2006
- Record last updated
- Dec 3, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (928) 277-4192
- Medicaid ID
- 23915L1 AZ
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,853 in Arizona → Look up another NPI →
Verify Robert Duane Barker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 9210Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
41 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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.
Robert Duane Barker among 2,853 internal medicine physician records in Arizona
Robert Duane Barker, MD is one of 2,853 internal 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 2006, is newer than 13% of them.
- NPI issued2006 · 13% of these records are older, 55% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 58% of these records are
- Record last updated2015 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
48 internal medicine physician records list a practice address in Prescott
They are 48 of the 1,818 NPPES records with a practice address in Prescott, and 2,853 internal medicine physician records in Arizona.
All 2,853 in Arizona → Every provider in Prescott → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Suzanne Allen, M.D.Prescott, AZ 863011649287574
- Hojat Askari, MDPrescott, AZ 863011326251695
- Kristen Bendinger, M.D.Prescott, AZ 863011386935344
- Kamala Boast, D.O.Prescott, AZ 863011639219520
- Erik Contreras, MDPrescott, AZ 863011265708416
- Syamala Darira, M.D.Prescott, AZ 863011780784710
- Joseph Goldberger, MDPrescott, AZ 863011699784546
- Kurt Krupnick, M.D.Prescott, AZ 863011700836129
Common questions
What is Robert Duane Barker, MD's NPI number?
Robert Duane Barker, MD's National Provider Identifier (NPI) is 1710924196, issued on Jun 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert Duane Barker, MD located?
The NPPES record lists a practice address at 1042 Willow Creek RD A101-491, Prescott, AZ, 86301. Phone: (928) 899-8739. Providers update this record themselves, so call before visiting.
How can I verify Robert Duane Barker, MD's license?
NPPES lists Arizona license number 9210, 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 Robert Duane Barker, MD prescribe under Medicare Part D?
In 2024, Robert Duane Barker, MD had 41 Medicare Part D claims; 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.