James Bruce Warden, M.D.
Diagnostic Ultrasound Physician · Vista, CA
James Bruce Warden, M.D. is a diagnostic ultrasound physician with a practice address in Vista, California, and NPI 1316024516, issued on Nov 1, 2006. Check the license (California C32387, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- James Bruce Warden
- Credential
- M.D.
- Primary taxonomy
- Diagnostic Ultrasound Physician 2085U0001X
- License number
- C32387 CA
Self-reported in NPPES; status is on the state search - Practice location
- 410 S Melrose Dr, Vista, CA 92081
- Phone
- (760) 506-4355
- Enumerated
- Nov 1, 2006
- Record last updated
- Sep 11, 2025
- Fax
- (760) 806-4363
- Entity
- Type 1 · individual
8 nearest diagnostic ultrasound physician records → All 75 in California → Look up another NPI →
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Verify James Bruce Warden in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C32387Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
34% fewer Medicare Part D claims than the average diagnostic ultrasound physician in 2024
35 Medicare Part D claims, against an average of 53 among the 12 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.
James Bruce Warden among 75 diagnostic ultrasound physician records in California
James Bruce Warden, M.D. is one of 75 diagnostic ultrasound physician records with a practice address in California. 19% 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 7% of them.
- NPI issued2006 · 7% of these records are older, 63% newer
- In a Medicare fileYes · 19% of these records are
- In the CMS Doctors and Clinicians fileNo · 12% of these records are
- Record last updated2025 · 44% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085U0001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Diagnostic Ultrasound Physician providers in California
There are 75 diagnostic ultrasound physician records in California.
All 75 in California → Every provider in Vista → Diagnostic Ultrasound Physician nationwide →
The 8 diagnostic ultrasound physician records with the nearest ZIP codes
- Michael Huk, M.D.Vista, CA 920811477624625
- Jill Meoni, MDSan Diego, CA 921011932147469
- Mark Koester, RMSKSan Diego, CA 921201720593098
- Shanoe Cutts, MDSan Diego, CA 921231417994252
- Jonathan Tiefenbrun, M.D.La Mesa, CA 919421265437727
- Dennis McQuown, M.D.Coachella, CA 922361396013298
- Alonso SalinasEl Centro, CA 922431134999360
- Erika Lopez, RCSPalm Desert, CA 922601124533310
Common questions
What is James Bruce Warden, M.D.'s NPI number?
James Bruce Warden, M.D.'s National Provider Identifier (NPI) is 1316024516, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is James Bruce Warden, M.D. located?
The NPPES record lists a practice address at 410 S Melrose Dr, Vista, CA, 92081. Phone: (760) 506-4355. Providers update this record themselves, so call before visiting.
How can I verify James Bruce Warden, M.D.'s license?
NPPES lists California license number C32387, 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 Bruce Warden, M.D. prescribe under Medicare Part D?
In 2024, James Bruce Warden, M.D. had 35 Medicare Part D claims; the average among diagnostic ultrasound physician prescribers was 53. 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.