Dr. Yulia Zak, MD

Dr. Zak practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University.

Dr. Zak's NPI, 1720251333, was assigned on April 4, 2008. Dr. Zak graduated from SUNY Downstate Health Sciences University in 2007. Dr. Zak's California license number on file is A113665.

Dr. Zak's primary practice is Stanford Hospital at 300 Pasteur Drive, at 300 Pasteur Drive, Stanford, CA 94305 in Santa Clara County. The practice phone is (650) 723-4000.

Dr. Zak's primary practice is Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University. The medical group on file is Mount Sinai Institute for Liver Medicine. Dmand AI also links Dr. Zak to 1 more hospital, 3 medical groups and 2 group practices and clinics, each named with a free account. Dr. Zak's employer is on file too: a hospital.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zak practices, 4 sites in all. Vendor and product names are available with a free account.

Surgery is Dr. Zak's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Zak is board certified in surgery by the American Board of Surgery. Dmand AI has Dr. Zak's licenses on file in 3 states: California, New York and Massachusetts.

Dmand AI lists gastrointestinal obstruction, obesity and pancreatitis among the conditions Dr. Zak treats.

CMS data shows 65 Medicare services from Dr. Zak across 4 procedure codes in 2024, all of them office visits, for 70 Medicare patients. Medicare paid $8,080 for them. Every service was in an office.

CMS counts 70 Medicare patients who saw Dr. Zak in 2024. The largest group is 65 to 74, with 37 patients. 71% of them have high blood pressure, and 71% have high cholesterol. 33% are also on Medicaid. Their average risk score is 1.59, 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. Zak's median patient age at 49, with 67% women.

In 2021, Dr. Zak wrote 15 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $248 in total drug cost.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for Dr. Zak for performance year 2024, reported as part of a group. Dr. Zak accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Zak as offering telehealth. CMS counts 12 procedures of hernia repair (minimally invasive) by Dr. Zak, more than 75% of the clinicians it reports for that procedure.

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

Dmand AI links 20 papers to Dr. Zak, published from 2007 to 2023. 2011 was the busiest year, with 3. The most frequent topics are Breast Neoplasms, California and Mammaplasty. Dr. Zak has published most often in Ann Surg Oncol. Dr. Zak's most frequent co-authors are Brendan Christopher Visser, MD, Monica Makiko Dua, MD and Kim Felder Rhoads, MD.

CMS Open Payments shows 29 general payments to Dr. Zak from 7 drug and device companies from 2016 to 2025. Education make up the largest share, 88% of the total. Intuitive Surgical, Inc. paid the most, $10,280.

Dmand AI lists 1 award for Dr. Zak.

Dr. Zak graduated from SUNY Downstate Health Sciences University in 2007. Dr. Zak is a member of ACS and SAGES.

Dr. Zak is in network with 10 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.