Lingyun Du

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.

Colleagues at Csi Medical Group

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 104 clinicians in the practice; 12 are shown here.

• Dr. Katharine Ball, MD Dermatology Physician · Saratoga, CA
• Dr. Aaron Chen, DO Family Medicine Physician · San Francisco, CA
• Dr. Milene Kennedy Crispin, MD Dermatology Physician · Salinas, CA
• Dr. Cary Edward Feibleman, MD Dermatopathology Physician · San Leandro, CA
• Dr. Alecia Shantel Folkes, DO Dermatology Physician · Mount Dora, FL
• Valentina Gonzalez Physician Assistant · Huntington Beach, CA
• Mr. Joe A Gorelick, NP Nurse Practitioner · San Jose, CA
• Michael S Karls, PAC Physician Assistant · San Francisco, CA
• William A. Liss, MD Dermatology Physician · Pleasanton, CA
• Dr. Bernard Recht, MD Dermatology Physician · Sunnyvale, CA
• Alicia Yukari Scherba, NP Nurse Practitioner · Mountain View, CA
• Faezeh Talebi Liasi, MD General Practice Physician · Beaumont, CA

Other providers in Camarillo

• Affiliated Dermatologists, Inc

  Organization Dermatology Physician · NPI 1306886429

  3901 Las Posas Rd Ste 108, Camarillo, CA 93010 · (805) 484-3331

• California Healthfirst Physicians

  Organization Dermatology Physician · NPI 1033399415

  5051 Verdugo Way Ste 100, Camarillo, CA 93012-8681 · (805) 384-8071

• Heng Medical, Inc

  Organization Dermatology Physician · NPI 1497182497

  500 Paseo Camarillo Ste 100, Camarillo, CA 93010-5900 · (805) 484-1033

• Dr. Ross Stuart Kaplan, MD

  Individual Dermatology Physician · NPI 1982600011

  3615 Las Posas Rd Ste F100, Camarillo, CA 93010-1479 · (805) 484-2813

• Dr. Gerald Nathan Karpman, MD

  Individual Dermatology Physician · NPI 1619905437

  2438 N Ponderosa Dr C-105, Camarillo, CA 93010-2369 · (805) 388-2068

• Larissa Larsen Dermatology Inc

  Organization Dermatology Physician · NPI 1083239727

  2460 N Ponderosa Dr Ste A117, Camarillo, CA 93010-2468 · (805) 430-0002