Jane Tio Joaquin-Wu, M.D.
Internal Medicine Physician · Irvine, CA
Jane Tio Joaquin-Wu, M.D. is an internal medicine physician with a practice address in Irvine, California, and NPI 1174532253, issued on Aug 6, 2006. Check the license (California C54506, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Jane Tio Joaquin-Wu
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- C54506 CA
Self-reported in NPPES; status is on the state search - Practice location
- 20 Cassidy, Irvine, CA 92620
- Phone
- (949) 705-6635
- Enumerated
- Aug 6, 2006
- Record last updated
- Oct 7, 2024
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 20 Cassidy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shin-Shen Wu, M.D.Internal Medicine Physician1962411066
Verify Jane Tio Joaquin-Wu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C54506Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Jane Tio Joaquin-Wu among 17,696 internal medicine physician records in California
Jane Tio Joaquin-Wu, 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 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileNo · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2024 · 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
- Lynda Adrig, MDIrvine, CA 926201568590388
- Jennifer Dong, M.D.Irvine, CA 926201972829653
- Julie Kim, MDIrvine, CA 926201194892026
- Michael Moon, MDIrvine, CA 926201972651941
- Farhad NajafiIrvine, CA 926201447693742
- Shin-Shen Wu, M.D.Irvine, CA 926201962411066
- Farhan Ayoub, MDIrvine, CA 926181699295501
- Michael Loi, DOIrvine, CA 926181861057556
Common questions
What is Jane Tio Joaquin-Wu, M.D.'s NPI number?
Jane Tio Joaquin-Wu, M.D.'s National Provider Identifier (NPI) is 1174532253, issued on Aug 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jane Tio Joaquin-Wu, M.D. located?
The NPPES record lists a practice address at 20 Cassidy, Irvine, CA, 92620. Phone: (949) 705-6635. Providers update this record themselves, so call before visiting.
How can I verify Jane Tio Joaquin-Wu, M.D.'s license?
NPPES lists California license number C54506, 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.