Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Ku-Juey Raymond Chang, MD

Individual provider Nephrology Physician · NPI 1689611337

Dr. Ku-Juey Raymond Chang, MD practises Nephrology in Lake Forest, California. Graduated from University of Minnesota Medical School in 1993, 33 years ago. Practices with Scke Inc, a 20-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
33
Trained at
University of Minnesota Medical School
Licensed in
CA
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

23331 El Toro Rd Ste 102
Lake Forest, CA 92630-4891 Not confirmed with CMS for 10 years — call before visiting
Phone: (949) 916-9100
Fax: (949) 916-0091
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Endocrinology, Diabetes & Metabolism Physician (primary) Taxonomy 207RE0101X · Licence G181497 (CA)
Nephrology Physician Taxonomy 207RN0300X · Licence G181497 (CA)

Record details

NPI number1689611337
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 1, 2006
Last updated in NPPESDecember 2, 2015

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNEPHROLOGY
Medical schoolUNIVERSITY OF MINNESOTA MEDICAL SCHOOL
Graduated 1993 (33 years in practice)
Group practice Scke Inc — 20 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients376
Services billed 22,214 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Compensation for services other than consulting , including serving as faculty or as a speaker at a venue other than a continuing education program $31,611 29 payments
Food and Beverage $3,339 130 payments · a meal or drink at a meeting or visit, not a fee
Travel and Lodging $36 2 payments · travel or lodging paid or reimbursed, such as to attend a conference

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Scke Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 20 clinicians in the practice; 12 are shown here.

Other providers in Lake Forest