Jack A. Collazzo, 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. Those with a page here are linked.

• Hospital Of Univ Of Pennsylvania Hospital · Philadelphia, PA · listed as Hospital University of Pennsylvania
• Main Line Hospital Lankenau Hospital · Wynnewood, PA · listed as Lankenau Hospital
• Riddle Memorial Hospital Hospital · Media, PA
• Bryn Mawr Hospital Hospital · Bryn Mawr, PA
• Paoli Hospital Hospital · Paoli, PA

Colleagues at Bryn Mawr Medical Specialists Association

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 135 clinicians in the practice; 12 are shown here.

• Kristina Keegan Bonesteel, CRNP Nurse Practitioner · Bryn Mawr, PA
• Bartholomew R Bono, MD Infectious Disease Physician · Bryn Mawr, PA
• Dr. Corinna Sabine Bowser, MD Allergy & Immunology Physician · Narberth, PA
• Kiristin B Briggs, CRNP Adult Health Nurse Practitioner · Bryn Mawr, PA
• Kristi Dodbiba, DO Nephrology Physician · Bryn Mawr, PA
• Dr. Sameer Gupta, MD, MPH Hematology & Oncology Physician · Bryn Mawr, PA
• Gemma Kelly, CRNP Family Nurse Practitioner · Bryn Mawr, PA
• Laura Neigh, CRNP Nurse Practitioner · Bryn Mawr, PA
• Dr. Clarke U. Piatt, MD Pulmonary Disease Physician · Bryn Mawr, PA
• Ashley Senss, PA-C Physician Assistant · Bryn Mawr, PA
• John Steers, MD Cardiovascular Disease Physician · Bryn Mawr, PA
• Dr. Brandon Gregory Twombly, DO Family Medicine Physician · Bryn Mawr, PA

Other providers in Bryn Mawr

• Robert R Atkins, MD

  Individual Gastroenterology Physician · NPI 1023049400

  825 Old Lancaster Rd Ste 320, Bryn Mawr, PA 19010-3231 · (610) 527-3800

• Dr. Nikhita Dharbhamulla, MD

  Individual Gastroenterology Physician · NPI 1255715090

  825 Old Lancaster Rd Ste 340, Bryn Mawr, PA 19010-3235 · (610) 525-9570

• William Haberstroh, DO

  Individual Gastroenterology Physician · NPI 1346773462

  825 Old Lancaster Rd Ste 340, Bryn Mawr, PA 19010-3235 · (610) 527-9570

• Robert Levitt, MD

  Individual Gastroenterology Physician · NPI 1225054398

  825 Old Lancaster Rd Ste 320, Bryn Mawr, PA 19010-3231 · (610) 527-3800

• Dr. Thomas J McKenna, MD

  Individual Gastroenterology Physician · NPI 1063724490

  825 Old Lancaster Rd Ste 320, Bryn Mawr, PA 19010-3231 · (610) 525-9570