NPPES file of Aug 9, 2026

James Joseph Mitchner, MD

Occupational Medicine Physician · Rancho Cucamonga, CA

James Joseph Mitchner, MD is an occupational medicine physician with a practice address in Rancho Cucamonga, California, and NPI 1740338672, issued on Jan 8, 2007. Check the license (California G62397, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1740338672
Name
James Joseph Mitchner
Credential
MD
Primary taxonomy
Occupational Medicine Physician 2083X0100X
License number
G62397 CA
Self-reported in NPPES; status is on the state search
Practice location
9405 Fairway View PL, Rancho Cucamonga, CA 91730
Phone
(909) 481-7345
Enumerated
Jan 8, 2007
Record last updated
Dec 1, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(909) 484-8661
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest occupational medicine physician records → All 415 in California → Look up another NPI →

Also registered at 9405 Fairway View PL

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Lauren Azzam, MSOTR/LOccupational Therapist1194335711
  2. Amy BiPhysical Therapy Assistant1083283378
  3. Lydia BurdOccupational Therapist1295251155
  4. Rosslynn Byous, DPA, PACMedical Physician Assistant1407904329
  5. Brittany CormierOccupational Therapist1912499807
  6. Kevin CummingsOrthopedic Physical Therapist1457126823

Verify James Joseph Mitchner in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G62397    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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James Joseph Mitchner among 415 occupational medicine physician records in California

James Joseph Mitchner, MD is one of 415 occupational medicine physician records with a practice address in California. 30% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2007, is newer than 43% of them.

  • NPI issued2007 · 43% of these records are older, 31% newer
  • In a Medicare fileNo · 30% of these records are
  • In the CMS Doctors and Clinicians fileNo · 12% of these records are
  • Record last updated2021 · 75% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2083X0100X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Occupational Medicine Physician providers in California

There are 415 occupational medicine physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 415 in California → Every provider in Rancho Cucamonga → Occupational Medicine Physician nationwide →

The 8 occupational medicine physician records with the nearest ZIP codes

  1. Amarilda Christensen, M.D.Rancho Cucamonga, CA 917301649476565
  2. Artemio Martin, M.D.Rancho Cucamonga, CA 917301063537959
  3. Leonardo Rasi, M.D.Rancho Cucamonga, CA 917301821112111
  4. Paul Umof, M.D.Rancho Cucamonga, CA 917301063537199
  5. Michael Wolf, MD, MSCovina, CA 917231982921706
  6. Priyanka Bhanot, M.D.City Of Industry, CA 917461326210246
  7. Dionisio Lazaro, M.D.City Of Industry, CA 917481508153842
  8. Clark Robbins, M.D.Rowland Heights, CA 917481902024136

Common questions

What is James Joseph Mitchner, MD's NPI number?

James Joseph Mitchner, MD's National Provider Identifier (NPI) is 1740338672, issued on Jan 8, 2007. An NPI identifies a provider in billing; it is not a license.

Where is James Joseph Mitchner, MD located?

The NPPES record lists a practice address at 9405 Fairway View PL, Rancho Cucamonga, CA, 91730. Phone: (909) 481-7345. Providers update this record themselves, so call before visiting.

How can I verify James Joseph Mitchner, MD's license?

NPPES lists California license number G62397, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.