npidata.org Sign in
Products
Provider RadarWatch an area and specialty — weekly alerts on new cliniciansPractice RadarWeekly alerts when new organisations register nearbySpecialtiesEvery NUCC taxonomy, with counts by state and cityStatesProvider counts and breakdowns for all 50 statesPhysician listsMDs and DOs with addresses and phone numbersNP listsNurse practitioners, the fastest-growing groupAPIJSON, delta feed, free tier
Use cases
Healthcare sales prospectingPhysician recruiting and locum staffingMedical device sales territory planningCredentialing and provider verificationHealthcare marketing lists and audience buildingPharmaceutical sales and prescriber targeting
Account
Start freeThree radars and an export a month Sign in Pricing
Explore
Data Labs API
About
About usTermsPrivacyContact us

Search › California › 2080P0202X

Ruey-Kang Chang, M.D

NPI 1427029677 · on the registry since 2006

Practice

Address
1360 Valley Vista Dr
Ste 203
Diamond Bar, CA 91765
Phone
(310) 866-0709
Fax
(310) 755-3108
Organisation at this address
Ekg360
Qt Medical, Inc.
Empire Global Health Group Inc
Inferred from a shared address, not stated in the registry.
Clinicians at this address
2

Registry record

Primary taxonomy
2080P0202X
2080P0202X
Licence states on file
CA
From the registry's licence fields, which are often incomplete.
Sex
Male
Record last updated
2026-07-13

Source: CMS National Plan and Provider Enumeration System. Registration is not the same as practising, and the registry records no retirement — some people listed here no longer practise. More in California