NPPES file of Aug 9, 2026

Richard Charles Corcoran, M.D.

Internal Medicine Physician · Corona, CA

Richard Charles Corcoran, M.D. is an internal medicine physician with a practice address in Corona, California, and NPI 1134376627, issued on Aug 26, 2008. Check the license (California G16029, 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
1134376627
Name
Richard Charles Corcoran
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
G16029 CA
Self-reported in NPPES; status is on the state search
Practice location
13273 Silver Stirrup Dr, Corona, CA 92883
Phone
(951) 471-2202
Enumerated
Aug 26, 2008
Record last updated
Aug 26, 2008 (not updated in 18 years: call before relying on the address or phone)
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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Verify Richard Charles Corcoran in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G16029
    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.

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Richard Charles Corcoran among 17,696 internal medicine physician records in California

Richard Charles Corcoran, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% 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 2008, is newer than 56% of them.

  • NPI issued2008 · 56% of these records are older, 40% newer
  • In a Medicare fileNo · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 63% of these records are
  • Record last updated2008 · 61% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

52 internal medicine physician records list a practice address in Corona

They are 52 of the 3,731 NPPES records with a practice address in Corona, and 17,696 internal medicine physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Mario Ficarola, M.D.Corona, CA 928831104939529
  2. Fatima Gauhar, MDCorona, CA 928831619959517
  3. Sophia Ho, DOCorona, CA 928831790245256
  4. Mohammad Shahin, MDCorona, CA 928831053393959
  5. Ennis Zaitoon, M.D.Corona, CA 928831235307141
  6. Michelle Zaki, D.O.Corona, CA 928831992237325
  7. Thomas Assali, DOCorona, CA 928821598225062
  8. Patrick Bonaparte, M.D.Corona, CA 928821508260340

Common questions

What is Richard Charles Corcoran, M.D.'s NPI number?

Richard Charles Corcoran, M.D.'s National Provider Identifier (NPI) is 1134376627, issued on Aug 26, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Richard Charles Corcoran, M.D. located?

The NPPES record lists a practice address at 13273 Silver Stirrup Dr, Corona, CA, 92883. Phone: (951) 471-2202. Providers update this record themselves, so call before visiting.

How can I verify Richard Charles Corcoran, M.D.'s license?

NPPES lists California license number G16029, 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.

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.