James Jeffrey Duke, MD
Urology Physician · Victorville, CA
James Jeffrey Duke, MD is a urology physician with a practice address in Victorville, California, and NPI 1871646851, issued on Jan 21, 2007. Check the license (California G41899, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- James Jeffrey Duke
- Credential
- MD
- Primary taxonomy
- Urology Physician 208800000X
- License number
- G41899 CA
Self-reported in NPPES; status is on the state search - Practice location
- 15366 11TH St, Victorville, CA 92395
- Phone
- (760) 962-1884
- Enumerated
- Jan 21, 2007
- Record last updated
- Dec 20, 2024
- Fax
- (760) 962-1888
- Medicaid ID
- 00G418990 CA
- Medicare enrollment
- Enrolled (PECOS I20050228000311); accepts Medicare assignment
- Medical or professional school
- Temple University School Of Medicine, 1975
- Entity
- Type 1 · individual
8 nearest urology physician records → All 1,524 in California → Look up another NPI →
Also registered at 15366 11TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Wonsik Bollmann, D.P.MPodiatrist1578556742
- Bonnie Chi-Lum, M.D.Public Health & General Preventive Medicine Physician1467598219
- Fahed Hattar, DDSDentist1770677858
- Bradley Herrick, M.D.Specialist1700035235
- Cheng Hsieh, M.D.Obstetrics & Gynecology Physician1558372649
- Jennifer Konior, PA-CPhysician Assistant1336399252
Verify James Jeffrey Duke in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G41899Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
7% more Medicare Part D claims than the average urology physician in 2024
1,433 Medicare Part D claims for 367 beneficiaries, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims. 40 claims were for opioids.
Most prescribed
- Tamsulosin Hcl345 claims
- Finasteride168 claims
- Sulfamethoxazole-Trimethoprim118 claims
- Amoxicillin-Clavulanate Potass102 claims
- Ciprofloxacin Hcl73 claims
- Amoxicillin70 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.
The MIPS final score for 2023 (Medicare payment program): 0 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
James Jeffrey Duke among 1,524 urology physician records in California
James Jeffrey Duke, MD is one of 1,524 urology physician records with a practice address in California. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 49% of them.
- NPI issued2007 · 49% of these records are older, 40% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1975 · median 2003 among the 1,049 with a school on file
- Record last updated2024 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208800000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Urology Physician providers in California
There are 1,524 urology physician records in California.
All 1,524 in California → Every provider in Victorville → Urology Physician nationwide →
The 8 urology physician records with the nearest ZIP codes
- Avinash Chenam, M.D.San Bernardino, CA 924041841502986
- Franklin Chu, MDSan Bernardino, CA 924041700809753
- Steve Dong, M.D.San Bernardino, CA 924041760666499
- Jinfeng Jiang, MDSan Bernardino, CA 924041508434358
- Sun Kim, MDSan Bernardino, CA 924041093738932
- David Koslov, MDSan Bernardino, CA 924041043655525
- Daniel Lama, MDSan Bernardino, CA 924041972517928
- Daniel Lama, MDSan Bernardino, CA 924041235634676
Common questions
What is James Jeffrey Duke, MD's NPI number?
James Jeffrey Duke, MD's National Provider Identifier (NPI) is 1871646851, issued on Jan 21, 2007. An NPI identifies a provider in billing; it is not a license.
Where is James Jeffrey Duke, MD located?
The NPPES record lists a practice address at 15366 11TH St, Victorville, CA, 92395. Phone: (760) 962-1884. Providers update this record themselves, so call before visiting.
How can I verify James Jeffrey Duke, MD's license?
NPPES lists California license number G41899, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does James Jeffrey Duke, MD prescribe under Medicare Part D?
In 2024, James Jeffrey Duke, MD had 1,433 Medicare Part D claims for 367 beneficiaries; the average among urology physician prescribers was 1,340. Part D covers Medicare prescriptions only.
What is James Jeffrey Duke, MD's MIPS final score?
The 2023 MIPS final score is 0 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.