Dr. Jonathan Zagzag, MD

Dr. Zagzag practices at St. Francis Hospital & Heart Center in Roslyn, New York, part of Diocese of Rockville Centre.

Dr. Zagzag's NPI, 1992009666, was assigned on January 10, 2011. Dr. Zagzag graduated from New York University Grossman School of Medicine in 2010. Dr. Zagzag holds Texas license R3251.

Dr. Zagzag's primary practice is St. Francis Hospital & Heart Center, at 100 Port Washington Boulevard, Roslyn, NY 11576 in Nassau County. The practice phone is (516) 562-6000.

Dr. Zagzag's primary practice is St. Francis Hospital & Heart Center in Roslyn, New York, part of Diocese of Rockville Centre. Dr. Zagzag is also affiliated with North Shore University Hospital. The medical group on file is Cardiac Interventional Group. Dmand AI also links Dr. Zagzag to 1 more hospital, 1 group practice or clinic and 1 home health agency, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zagzag practices, 5 sites in all. Vendor and product names are available with a free account.

Surgery is Dr. Zagzag's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Zagzag is licensed in Texas.

Dmand AI lists abdominal hernia repair surgery, appendectomy, colon removal, esophagus, stomach, or upper small intestine surgery, gallbladder removal, gastrointestinal obstruction, intestinal or bowel obstruction and thyroid surgery among the conditions Dr. Zagzag treats.

CMS data shows 976 Medicare services from Dr. Zagzag across 16 procedure codes in 2024, for 399 Medicare patients. Medicare paid $109,692 for them.

CMS counts 399 Medicare patients who saw Dr. Zagzag in 2024. The largest group is 75 to 84, with 172 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 9% are also on Medicaid. Their average risk score is 1.58, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Zagzag's median patient age at 70, with 61% women.

In 2024, Dr. Zagzag wrote 13 Medicare Part D claims for 11 patients. 100% of them were for generic drugs.

Dr. Zagzag accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)

Hernia repair (minimally invasive): 1 to 10 procedures (CMS shows small counts as a range)

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

Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)

Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)

Dmand AI links 13 papers to Dr. Zagzag, published from 2011 to 2022. 2018 was the busiest year, with 3. The most frequent topics are Thyroid Neoplasms, Laparoscopy and Tomography, X-Ray Computed. Dr. Zagzag has published most often in Surg Endosc. Dr. Zagzag's most frequent co-authors are Nancy A. Perrier, MD, Keith Heller, MD and Jennifer Braemar Ogilvie, MD.

CMS Open Payments shows 16 general payments to Dr. Zagzag from 6 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Cumberland Pharmaceuticals, Inc. paid the most, $131.

Dr. Zagzag graduated from New York University Grossman School of Medicine in 2010.

Dr. Zagzag is in network with 15 carriers, including Elevance, Aetna and United Healthcare. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.