James K. Wang, M.D.
Internal Medicine Physician · Irvine, CA
James K. Wang, M.D. is an internal medicine physician with a practice address in Irvine, California, and NPI 1639413123, issued on Nov 21, 2012. Check the license (California G59796, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- James K. Wang
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G59796 CA
Self-reported in NPPES; status is on the state search - Practice location
- 26 Executive Park, Irvine, CA 92614
- Phone
- (818) 679-8832
- Enumerated
- Nov 21, 2012
- Record last updated
- Jan 20, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (949) 721-8285
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Verify James K. Wang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G59796Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
James K. Wang among 17,696 internal medicine physician records in California
James K. Wang, 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 2012, is newer than 68% of them.
- NPI issued2012 · 68% of these records are older, 29% newer
- In a Medicare fileNo · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2015 · 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).
155 internal medicine physician records list a practice address in Irvine
They are 155 of the 7,778 NPPES records with a practice address in Irvine, and 17,696 internal medicine physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 17,696 in California → Every provider in Irvine → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Grace Chang, M.D.Irvine, CA 926141992877625
- Denny Lee, MDIrvine, CA 926141740571835
- Maulik Majmudar, M.D.Irvine, CA 926141346395100
- Firas Naji, D.O.Irvine, CA 926141578883997
- Jeffrey Sudeith, M.D.Irvine, CA 926141649297383
- Susan Davoodifar, M.D.Irvine, CA 926121013287119
- Pamela Lawrence, M.D.Irvine, CA 926121336299734
- Marta Long, MDIrvine, CA 926121205860509
Common questions
What is James K. Wang, M.D.'s NPI number?
James K. Wang, M.D.'s National Provider Identifier (NPI) is 1639413123, issued on Nov 21, 2012. An NPI identifies a provider in billing; it is not a license.
Where is James K. Wang, M.D. located?
The NPPES record lists a practice address at 26 Executive Park, Irvine, CA, 92614. Phone: (818) 679-8832. Providers update this record themselves, so call before visiting.
How can I verify James K. Wang, M.D.'s license?
NPPES lists California license number G59796, 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.