Dr. William Vasilos Kastrinakis, MD

Dr. Kastrinakis practices at Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham.

Dr. Kastrinakis' NPI, 1164481743, was assigned on March 21, 2006. Dr. Kastrinakis graduated from Tufts University School Of Medicine in 1990. Dr. Kastrinakis holds Massachusetts license 75212.

Dr. Kastrinakis' primary practice is Massachusetts General Hospital, at 55 Fruit Street, Boston, MA 02114 in Suffolk County. The practice phone is (617) 726-2000.

Dr. Kastrinakis' primary practice is Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham. Dr. Kastrinakis is also affiliated with Salem Hospital. The medical group on file is Massachusetts General Physicians Organization (MGPO). Dmand AI also links Dr. Kastrinakis to 2 more group practices and clinics, 1 community health center, 1 home health agency and 1 medical group, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kastrinakis practices, 6 sites in all. Vendor and product names are available with a free account.

Surgery is Dr. Kastrinakis' primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Kastrinakis is board certified in surgery by the American Board of Surgery. Dr. Kastrinakis is licensed in Massachusetts.

Dmand AI lists abdominal adhesion surgery, abdominal hernia repair surgery, acute gallbladder or bile duct inflammation, appendectomy, cancerous skin growth removal, colonoscopy, colon removal and esophagus, stomach, or upper small intestine surgery among the conditions Dr. Kastrinakis treats.

CMS data shows 500 Medicare services from Dr. Kastrinakis across 12 procedure codes in 2024, for 451 Medicare patients. Medicare paid $62,255 for them.

CMS counts 451 Medicare patients who saw Dr. Kastrinakis in 2024. The largest group is 65 to 74, with 176 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 14% are also on Medicaid. Their average risk score is 1.37, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Kastrinakis' median patient age at 73, with 44% women.

In 2024, Dr. Kastrinakis wrote 100 Medicare Part D claims for 73 patients. 91% of them were for generic drugs. CMS names the drug for 45 of them, across 2 drugs with 11 or more claims each, at $153 in total drug cost. In 2023, CMS named 49 claims across 2 drugs.

Dr. Kastrinakis accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Kastrinakis as offering telehealth. CMS counts 34 procedures of hernia repair - groin (open) by Dr. Kastrinakis, more than 99% of the clinicians it reports for that procedure.

Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)

Dmand AI links 8 papers to Dr. Kastrinakis in 2024. 2024 was the busiest year, with 2. The most frequent topics are Anastomosis, Surgical and Colectomy. Dr. Kastrinakis has published most often in Ann Surg. Dr. Kastrinakis' most frequent co-authors are Marc Stuart Rubin, MD, Alexander Farley Arriaga, MD and Michael Belkin, MD.

CMS Open Payments shows 47 general payments to Dr. Kastrinakis from 9 drug and device companies from 2016 to 2025. Education make up the largest share, 67% of the total. Intuitive Surgical, Inc. paid the most, $12,440.

Dmand AI lists 3 awards for Dr. Kastrinakis, most recently Regional Top Doctor in 2014.

Dr. Kastrinakis graduated from Tufts University School Of Medicine in 1990. Dr. Kastrinakis is a member of ACS.

Dr. Kastrinakis is in network with 15 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Massachusetts. HMO plans come from the most carriers, 8. Check the plan with the practice before a visit.