Dr. Lance William Chapman, MD, MBA

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 Howard Fein MD Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 14 clinicians in the practice; 12 are shown here.

• Dr. David Lee Arnold, DO MOHS-Micrographic Surgery Physician · Downey, CA
• Salma Balbas, PA-C Physician Assistant · Los Alamitos, CA
• Deanna Maria Chirco Physician Assistant · Downey, CA
• Jennifer A Faggionato, PA Physician Assistant · Whittier, CA
• Karyn Haitz Internal Medicine Physician · Los Alamitos, CA
• Aubrie Jones Dermatology Physician · Seal Beach, CA
• Mrs. Elika Kamdar, PA-C, MMS Physician Assistant · Irvine, CA
• Dr. Gene J Lin, MD Dermatology Physician · Whittier, CA
• Mark F. Maida, MD Dermatology Physician · Los Alamitos, CA
• Amy Ngoc Nguyen, MD Family Medicine Physician · Fullerton, CA
• Taylor Truong Physician Assistant · Seal Beach, CA
• Joyce T Yuan, MD Student in an Organized Health Care Education/Training Program · Newport Beach, CA

Other providers in Los Angeles

• Soheil Lahijani, MD

  Individual MOHS-Micrographic Surgery Physician · NPI 1992852784

  2080 Century Park E Ste 501, Los Angeles, CA 90067-2008 · (310) 550-6886

• Arnold Lee, MD, PHD

  Individual MOHS-Micrographic Surgery Physician · NPI 1598988057

  5971 Venice Blvd 4th Fl, Los Angeles, CA 90034-1713 · (646) 270-1632

• Dr. Ardeshir Edward Nadimi, MD

  Individual MOHS-Micrographic Surgery Physician · NPI 1992190417

  12555 W Jefferson Blvd Ste 202, Los Angeles, CA 90066-7047 · (424) 541-1756

• Prim Health Services Inc

  Organization MOHS-Micrographic Surgery Physician · NPI 1174858153

  5150 Wilshire Blvd Ste 603, Los Angeles, CA 90036-4303 · (213) 995-5054