Dr. Justin Kaeen Chang, MD

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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.

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.

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. Those with a page here are linked.

• Lompoc Valley Medical Center Hospital · Lompoc, CA
• Assisted Home Health Home health agency · Santa Barbara, CA
• Superior Home Health Home health agency · Lompoc, CA

Colleagues at Lompoc Valley Medical Center

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 91 clinicians in the practice; 12 are shown here.

• Vanessa Connors Physician Assistant · Lompoc, CA
• Dr. Philip Ente, MD Neurology Physician · Lompoc, CA
• Dr. William Alan Golgert, MD Nephrology Physician · Santa Barbara, CA
• Dr. Eugene Kaplan, MD Gynecology Physician · Caldwell, ID
• Christopher G Lumsdaine, MD Family Medicine Physician · Lompoc, CA
• David L McAninch III, MD Diagnostic Radiology Physician · Lompoc, CA
• Lesley Noel Mori, PA-C Medical Physician Assistant · Lompoc, CA
• Sheppard Peng, DO General Practice Physician · Bradenton, FL
• Steven J Prueitt, DO Family Medicine Physician · Vandenberg Space Force Base, CA
• Carl A Schlosser Family Medicine Physician · Lompoc, CA
• Lloyd L Trujillo, MD Obstetrics & Gynecology Physician · Lompoc, CA
• Dr. Jennifer Vineyard, DO Hospice and Palliative Medicine (Internal Medicine) Physician · Lompoc, CA

Other providers in Lompoc

• Mr. Michael Dennis Gill, MD

  Individual Orthopaedic Surgery Physician · NPI 1497847123

  1025 E Ocean Ave Ste A, Lompoc, CA 93436 · (805) 735-7621

• Lompoc Orthopedic Medical Clinic

  Organization Orthopaedic Surgery Physician · NPI 1043425242

  1111 E Ocean Ave Ste 1, Lompoc, CA 93436-2500 · (805) 735-3434

• Michael D. Gill MD Inc

  Organization Orthopaedic Surgery Physician · NPI 1093039372

  1025 E Ocean Ave Ste A, Lompoc, CA 93436-7088 · (805) 735-7621