Evan Y Lau, 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.

• Baystate Franklin Medical Center Hospital · Greenfield, MA
• Baystate Medical Center Hospital · Springfield, MA · listed as Baystate Medical Center Inc
• Baystate Noble Hospital Hospital · Westfield, MA · listed as Baystate Noble Hospital Corporation
• Baystate Wing Hospital Hospital · Palmer, MA · listed as Baystate Wing Hospital Corporation
• Berkshire Medical Center Hospital · Pittsfield, MA

Colleagues at Baystate Medical Practices Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1346 clinicians in the practice; 12 are shown here.

• Dr. Kevin Paul Baratta, MD Hospitalist Physician · Springfield, MA
• Jake Anthony Carvalho, PA Medical Physician Assistant · Springfield, MA
• Dr. Daniel R Fish, MD Surgery Physician · Springfield, MA
• Lora D Grimes, MD Family Medicine Physician · Northampton, MA
• William Jacob House, MD Neurology Physician · Springfield, MA
• Anthony H Jackson, MD Neurology with Special Qualifications in Child Neurology Physician · Springfield, MA
• Victoria Ainhi Nguyen, DO Geriatric Medicine (Internal Medicine) Physician · Springfield, MA
• Dr. Ayotomide E Oyelakin, MD, MPH Psychiatry Physician · Houston, TX
• Alexander S Roseman, MD Internal Medicine Physician · Springfield, MA
• Derek Rosner, DO Anesthesiology Physician · Boston, MA
• Robert Louis Ventulett, PA Physician Assistant · New London, CT
• Alicja Zalewski, MD Student in an Organized Health Care Education/Training Program · Springfield, MA

Other providers in Springfield

• Mohammed Abozenah

  Individual Interventional Cardiology Physician · NPI 1457839805

  3300 Main St, Springfield, MA 01107-1112 · (413) 794-2273

• Baystate Medical Practices, Inc

  Organization Interventional Cardiology Physician · NPI 1750600482

  759 Chestnut St, Springfield, MA 01199-1001 · (413) 794-5700

• Baystate Vascular Services, Inc

  Organization Interventional Cardiology Physician · NPI 1174721336

  3500 Main St Ste 201, Springfield, MA 01107-1137 · (413) 784-0900

• Ali Suleiman Elfandi, MD

  Individual Interventional Cardiology Physician · NPI 1669816336

  759 Chestnut St, Springfield, MA 01199-3533 · (413) 794-0000

• Ajay Shunmugarajan, MD

  Individual Interventional Cardiology Physician · NPI 1740109065

  Baystate Medical Center 759 Chestnut St, Springfield, MA 01199-1001 · (413) 794-1155