Peter Sullivan, 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.

• Memorialcare Long Beach Medical Center Hospital · Long Beach, CA · listed as Memorialcarelong Beach Medical Center

Colleagues at Prohealth Partners, a Medical Group

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 234 clinicians in the practice; 12 are shown here.

• Brigitte Brown, NP Family Nurse Practitioner · Los Angeles, CA
• Dr. Archna Chaudhary, MD Internal Medicine Physician · Long Beach, CA
• Karen Chen, MD Psychiatry Physician · Costa Mesa, CA
• Viktor E Eysselein, MD Gastroenterology Physician · Torrance, CA
• Sherif Y Labatia, MD Family Medicine Physician · Lakewood, CA
• Michele Nelson-Chung, LMFT Marriage & Family Therapist · Los Alamitos, CA
• Dr. Chioma Onyejekwe, DNP Family Nurse Practitioner · Torrance, CA
• Akash Pramod Patel, PA-C Internal Medicine Physician · Cudahy, CA
• Rebecca J Schwartz, MD Obstetrics & Gynecology Physician · Los Alamitos, CA
• Dr. Tony K Tseng, MD, MS Internal Medicine Physician · South Gate, CA
• Rodney White, MD Vascular Surgery Physician · Long Beach, CA
• Petra A Wong, MD Internal Medicine Physician · Los Alamitos, CA

Other providers in Long Beach

• Prohealth Partners a Medical Group

  Organization Gastroenterology Physician · NPI 1265982359

  1040 Elm Ave Ste 100, Long Beach, CA 90813-3264 · (562) 591-4444

• Archana Sanku Rao, MD

  Individual Gastroenterology Physician · NPI 1386740405

  4910 Airport Plaza Dr, Long Beach, CA 90815-1376 · (562) 429-2473

• Dr. Mehrdad Saliminejad, MD

  Individual Gastroenterology Physician · NPI 1891934832

  3833 Worsham Ave Ste 300, Long Beach, CA 90808-1766 · (562) 595-5421

• Anoop Shah, MD

  Individual Gastroenterology Physician · NPI 1154492361

  1045 Atlantic Ave Ste 712, Long Beach, CA 90813-3408 · (562) 491-4879

• Andrzej Stanislaw Tarnawski, MD

  Individual Gastroenterology Physician · NPI 1285726588

  5901 E 7th St 111G, Long Beach, CA 90822-5201 · (562) 826-5437