Joseph Thomas Patterson, 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.

• Los Angeles General Medical Center Hospital · Los Angeles, CA · listed as Los Angeles County USC Medical Center
• Keck Hospital Of Usc Hospital · Los Angeles, CA

Also affiliated with 1 hospital, which CMS identifies by certification number only.

Colleagues at USC Care Medical Group Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1371 clinicians in the practice; 12 are shown here.

• Maggie Chow Dermatology Physician · Los Angeles, CA
• Brenda Han, NP Acute Care Nurse Practitioner · Los Angeles, CA
• Angela Hsu, PA-C Physician Assistant · Los Angeles, CA
• Lindsay Hwang, MD Student in an Organized Health Care Education/Training Program · Los Angeles, CA
• Eileen Villanueva Johnson Physical Therapist · Los Angeles, CA
• Sarah McCrea Martin, MBBS Ophthalmology Physician · Los Angeles, CA
• Sarah Asher Nargiso, PA-C, LAC Physician Assistant · Los Angeles, CA
• Dr. Baljeet Singh Rai, MD Rheumatology Physician · Los Angeles, CA
• Carolyn Rumpeltes, PA Medical Physician Assistant · Los Angeles, CA
• Linda Sue Sher, MD Transplant Surgery Physician · Los Angeles, CA
• Rene Javier Sotelo, MD Urology Physician · Los Angeles, CA
• Dr. Ashish Vyas, MD Diagnostic Radiology Physician · New Lenox, IL

Other providers in Los Angeles

• Dr. Devon Michael Jeffcoat, MD

  Individual Orthopaedic Trauma Physician · NPI 1932318748

  10833 Le Conte Ave, Los Angeles, CA 90095-3075 · (310) 825-1000

• Eric Johnson, MD

  Individual Orthopaedic Trauma Physician · NPI 1225135999

  10833 Le Conte Ave 76-143 Chs Mail Code 690218, Los Angeles, CA 90095-3075 · (310) 206-1169

• Dr. Farzin Kabaei, MD

  Individual Orthopaedic Trauma Physician · NPI 1255655072

  8436 W 3rd St Ste 800, Los Angeles, CA 90048-4100 · (310) 746-5918

• Dr. Milton Thomas Michael Little, MDBS

  Individual Orthopaedic Trauma Physician · NPI 1407015092

  444 S San Vicente Blvd, Los Angeles, CA 90048-4165 · (310) 423-4566

• Dr. Lane E Shepherd, MD

  Individual Orthopaedic Trauma Physician · NPI 1861618084

  1200 N State St Rm 3900 Lac Usc Medical Center Orthopaedics, Los Angeles, CA 90033-1029 · (323) 226-7891

• Dr. Charalampos Zalavras, MD

  Individual Orthopaedic Trauma Physician · NPI 1508922329

  1200 N State St Gnh 3900 Lac-Usc Medical Ctr, Los Angeles, CA 90033-1029 · (323) 226-7346