Dr. Jennifer Ann Adrissi, MD

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.

• Ronald Reagan Ucla Medical Center Hospital · Los Angeles, CA

Colleagues at The Regents of the University of California

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 101 clinicians in the practice; 12 are shown here.

• Dr. Michael Alexander Connerney, MD Neurology Physician · Los Angeles, CA
• Molly Rachel Fensterwald Student in an Organized Health Care Education/Training Program · Los Angeles, CA
• Colin Matthew McCrimmon Neurology Physician · Los Angeles, CA
• Mario Fernando Mendez, MD Neurology Physician · Los Angeles, CA
• Phioanh Nghiemphu, MD Neurology Physician · Los Angeles, CA
• Allan Quang-Lam Phan, MD Vascular Neurology Physician · Los Angeles, CA
• Radoslav Ivov Raychev, MD Neurology Physician · Anaheim, CA
• Melissa Marie Reider-Demer, PNP Pediatric Nurse Practitioner · Los Angeles, CA
• Thao Thanh Nguyen Rodriguez, APRN Gerontology Nurse Practitioner · Los Angeles, CA
• Lara Marcelle Schrader, MD Clinical Neurophysiology Physician · Los Angeles, CA
• Dr. Latisha Katie Faina Sharma, MD Vascular Neurology Physician · Los Angeles, CA
• Eric Williamson, MD Neurology Physician · Los Angeles, CA

Other providers in Los Angeles

• Dr. Hadi Abou El Hassan, MD

  Individual Neurology Physician · NPI 1053995720

  1500 San Pablo St, Los Angeles, CA 90033-5313 · (323) 442-0117

• Advanced Diagnostics

  Organization Neurology Physician · NPI 1235425307

  3500 Overland Ave A133, Los Angeles, CA 90034-5695 · (323) 854-4454

• Advanced Pain Control

  Organization Neurology Physician · NPI 1679840045

  4601 Wilshire Blvd 3rd Fl, Los Angeles, CA 90010-3880 · (323) 556-3470

• Dr. Phillip C. Ahn, MD

  Individual Neurology Physician · NPI 1104921832

  520 S Virgil Ave Ste 205, Los Angeles, CA 90020-1425 · (213) 251-3333

• Samuel Ahn, MD

  Individual Neurology Physician · NPI 1346699022

  200 UCLA Medical Plz Ste 265, Los Angeles, CA 90095-1437 · (310) 825-0867