Registry data as of Aug 27, 2026

Duane Cox, MD

Internal Medicine Physician · Compton, CA

Duane Cox, MD is an internal medicine physician with a practice address in Compton, California, and NPI 1811075062, issued on Nov 2, 2006. Check the license (California G47851, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1811075062
Name
Duane Cox
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
G47851 CA
Self-reported in NPPES; status is on the state search
Practice location
2499 S Wilmington Ave, Compton, CA 90220
Phone
(310) 638-1113
Enumerated
Nov 2, 2006
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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Also registered at 2499 S Wilmington Ave

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

  1. Ashley DavesPhysical Therapist1821564782
  2. Caitlin DukePhysical Therapist1568942969
  3. Antonio Francisco, P.T.Physical Therapist1891828356
  4. Masato Fukushima, DPTPhysical Therapist1962069765
  5. Celia HaroLicensed Vocational Nurse1477922151
  6. Emily Moreno, DPTOrthopedic Physical Therapist1528582962

Verify Duane Cox in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G47851
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

98% fewer Medicare Part D claims than the average internal medicine physician in 2024

50 Medicare Part D claims for 21 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D.

  1. Duane Cox50
  2. Specialty average2,785

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.

10 internal medicine physician records list a Compton practice address

They are 10 of the 894 NPPES records with a Compton practice address, and 20,403 internal medicine physician records in California.

Other internal medicine physician records in California

  1. Jacob Aaron, MDSan Francisco, CA1407202518
  2. Alistair Aaronson, MDStanford, CA1457628760
  3. Jose Abad., MDSacramento, CA1144607219
  4. Donna Abare, MDOakland, CA1386722155
  5. Marce AbareScotts Valley, CA1457744708
  6. Samuel Abarte, M.D.Chula Vista, CA1578535498
  7. Alexander Abary, MDLong Beach, CA1104995919
  8. Luba Abascal, MDSan Francisco, CA1023180874
  9. Michael Abate, MDSacramento, CA1548248131
  10. Wali Abawi, D.O.Joshua Tree, CA1104362268

Common questions

What is Duane Cox, MD's NPI number?

Duane Cox, MD's National Provider Identifier (NPI) is 1811075062, issued on Nov 2, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Duane Cox, MD located?

The NPPES record lists a practice address at 2499 S Wilmington Ave, Compton, CA, 90220. Phone: (310) 638-1113. Providers update this record themselves, so call before visiting.

How can I verify Duane Cox, MD's license?

NPPES lists California license number G47851, 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 Duane Cox, MD prescribe under Medicare Part D?

In 2024, Duane Cox, MD had 50 Medicare Part D claims for 21 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.