Dr. Alfred W. Heinser, 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. Those with a page here are linked.

• Beth Israel Deaconess Medical Center Hospital · Boston, MA
• Emerson Hospital Hospital · W Concord, MA
• Lahey Hospital & Medical Center, Burlington Hospital · Burlington, 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.

• Dr. Maria Del Carmen Arcia, MD Psychiatry Physician · Methuen, MA
• Cheri Colantuoni, PA-C Physician Assistant · Concord, MA
• Dr. Majid Hussain Dudha, MD Internal Medicine Physician · Fall River, MA
• Sunita K Hanjura, MD Internal Medicine Physician · Lexington, MA
• Tamer Khafagy, MD Internal Medicine Physician · Medford, MA
• Dr. Joseph Khoory, DO Student in an Organized Health Care Education/Training Program · Cambridge, MA
• Matthew Andrzej Krzystyniak Physician Assistant · Concord, MA
• Richard Larson, MD Emergency Medicine Physician · Jamaica Plain, MA
• Miss. Emily D'Amato Martinez, NP Psychiatric/Mental Health Nurse Practitioner · Beverly, MA
• Elizaveta Ragulin Coyne, MD Surgery Physician · Worcester, MA
• Kirsten Piotrowski Sobkowich, APRN Nurse Practitioner · Groton, MA
• Russell S. Zide, MD Internal Medicine Physician · Burlington, MA

Other providers in Groton

• Groton Medical Associates, LLC

  Organization Internal Medicine Physician · NPI 1144362740

  100 Boston Rd, Groton, MA 01450-1860 · (978) 448-4300

• John P. Katzenberg

  Organization Internal Medicine Physician · NPI 1689716813

  292 Main St, Groton, MA 01450 · (978) 448-6855

• Vandana Sahay, MD

  Individual Internal Medicine Physician · NPI 1881683068

  497 Main St Ste 4B, Groton, MA 01450-1298 · (978) 784-9975

• Alla R Sarkisyan, MD

  Individual Internal Medicine Physician · NPI 1326037508

  497 Main Street 4B, Groton, MA 01450 · (978) 449-0471

• Dr. Hilde Hamar Westvik, MD

  Individual Internal Medicine Physician · NPI 1235368242

  1 Forge Village Rd Ste C, Groton, MA 01450 · (978) 449-0282