Persis Oneeka Williams, 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.

• Emerson Hospital Hospital · W Concord, MA

Colleagues at Emerson Practice Associates, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 247 clinicians in the practice; 12 are shown here.

• Jeremy Garneau Internal Medicine Physician · Concord, MA
• Tanya Khan Gastroenterology Physician · Concord, MA
• Judy H Larson, NP Nurse Practitioner · Peabody, MA
• David W Lin, MD Colon & Rectal Surgery Physician · Chelmsford, MA
• Omar Nehme, MD Critical Care Medicine (Internal Medicine) Physician · Oklahoma City, OK
• Janice Patel, MD Internal Medicine Physician · Concord, MA
• Elizabeth M Peters, MD Diagnostic Radiology Physician · Concord, MA
• Dr. Roy Phitayakorn, MD, MHPE Surgery Physician · Boston, MA
• Dr. Burton H Shen, MD Critical Care Medicine (Internal Medicine) Physician · Boston, MA
• Mark Waksmonski, APRN Psychiatric/Mental Health Nurse Practitioner · Bedford, MA
• Dr. Duane Robert Wesemann, MD, PHD Internal Medicine Physician · Boston, MA
• Dr. Peter Yi Zhao, MD Family Medicine Physician · Quincy, MA

Other providers in Brighton

• Alexander W.y. Pang, MD

  Individual Urology Physician · NPI 1497898316

  11 Nevins St Ste 303, Brighton, MA 02135-3514 · (617) 787-8181

• David R. Staskin, MD

  Individual Urology Physician · NPI 1629165717

  11 Nevins St Ste 303, Brighton, MA 02135-3514 · (617) 787-8181

• Ingolf Tuerk, MD

  Individual Urology Physician · NPI 1013064054

  11 Nevins St Ste 303, Brighton, MA 02135-3514 · (617) 787-8181

• Ahmet Urkmez, MD

  Individual Urology Physician · NPI 1134850183

  11 Nevins St Ste 303, Brighton, MA 02135-3514 · (617) 789-8181