Dr. Mark Ovsiowitz, MD

Dr. Ovsiowitz practices at UCLA Santa Monica Medical Center in Santa Monica, California, part of University of California Health.

Dr. Ovsiowitz's NPI, 1881712370, was assigned on March 26, 2007. Dr. Ovsiowitz graduated from St. George's University School of Medicine in 2000. Dr. Ovsiowitz's California license number on file is A94620.

Dr. Ovsiowitz's primary practice is UCLA Santa Monica Medical Center, at 1250 16th Street, Santa Monica, CA 90404 in Los Angeles County. The practice phone is (310) 319-4000.

Dr. Ovsiowitz's primary practice is UCLA Santa Monica Medical Center in Santa Monica, California, part of University of California Health. Dr. Ovsiowitz is also affiliated with Ronald Reagan UCLA Medical Center. The medical group on file is UCLA Medical Group. Dmand AI also links Dr. Ovsiowitz to 1 more group practice or clinic, named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ovsiowitz practices, 3 sites in all. Vendor and product names are available with a free account.

Gastroenterology is Dr. Ovsiowitz's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Ovsiowitz is board certified in gastroenterology by the American Board of Internal Medicine. Dmand AI has Dr. Ovsiowitz's licenses on file in 2 states: California and Pennsylvania.

Dmand AI lists acid reflux, chronic indigestion, chronic inflammatory bowel disease (IBD), colonoscopy, gastroenteritis, gastrointestinal bleeding, hemorrhoids and intestinal diverticulosis among the conditions Dr. Ovsiowitz treats.

CMS data shows 1,191 Medicare services from Dr. Ovsiowitz across 12 procedure codes in 2024, for 536 Medicare patients. Medicare paid $109,792 for them.

CMS counts 536 Medicare patients who saw Dr. Ovsiowitz in 2024. The largest group is 65 to 74, with 253 patients. 75% of them have high cholesterol, and 67% have high blood pressure. 30% are also on Medicaid. Their average risk score is 1.70, 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. Ovsiowitz's median patient age at 56, with 52% women.

In 2024, Dr. Ovsiowitz wrote 1,034 Medicare Part D claims for 348 patients. 82% of them were for generic drugs. CMS names the drug for 885 of them, across 16 drugs with 11 or more claims each, at $121,056 in total drug cost. In 2023, CMS named 813 claims across 13 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 88 out of 100 for Dr. Ovsiowitz for performance year 2024, reported as part of a group. Dr. Ovsiowitz accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Ovsiowitz as offering telehealth. CMS counts 91 procedures of colonoscopy by Dr. Ovsiowitz, more than 78% of the clinicians it reports for that procedure.

Dmand AI links 1 paper to Dr. Ovsiowitz.

CMS Open Payments shows 27 general payments to Dr. Ovsiowitz from 11 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 98% of the total. Cook Medical LLC paid the most, $381.

Dmand AI lists 1 award for Dr. Ovsiowitz, most recently CMS Stage 1 EHR in 2013.

Dr. Ovsiowitz graduated from St. George's University School of Medicine in 2000.

Dr. Ovsiowitz is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.