Dr. Roxanne Giselle G Lim, MD

Dr. Lim practices at United Surgery Center-Irvine in Irvine, California.

Dr. Lim's NPI, 1154587368, was assigned on August 6, 2008. Dr. Lim graduated from University of the Philippines College of Medicine in 2006. Dr. Lim holds California license A128032.

Dr. Lim's primary practice is United Surgery Center-Irvine, at 15825 Laguna Canyon Rd Suite 100, Irvine, CA 92618. The practice phone is (949) 679-6700.

Dr. Lim's primary practice is United Surgery Center-Irvine in Irvine, California. Dr. Lim is also affiliated with Hoag Hospital Newport Beach. The medical group on file is United Medical Doctors. Dmand AI also links Dr. Lim to 2 more group practices and clinics and 1 medical group, each named with a free account.

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

Gastroenterology is Dr. Lim's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Lim is board certified in gastroenterology by the American Board of Internal Medicine. Dmand AI has Dr. Lim's licenses on file in 3 states: California, Missouri and Illinois.

Dmand AI lists acid reflux, chronic inflammatory bowel disease (IBD), colonoscopy, fatty liver, gastroduodenitis, gastrointestinal bleeding, hemorrhoids and hepatitis c among the conditions Dr. Lim treats.

CMS data shows 1,741 Medicare services from Dr. Lim across 11 procedure codes in 2024, for 522 Medicare patients. Medicare paid $179,160 for them.

CMS counts 522 Medicare patients who saw Dr. Lim in 2024. The largest group is 65 to 74, with 296 patients. 75% of them have high cholesterol, and 65% have high blood pressure. 7% are also on Medicaid. Their average risk score is 0.92, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Lim's median patient age at 57, with 69% women.

In 2024, Dr. Lim wrote 1,354 Medicare Part D claims for 431 patients. 78% of them were for generic drugs. CMS names the drug for 1,175 of them, across 23 drugs with 11 or more claims each, at $442,251 in total drug cost. In 2023, CMS named 1,229 claims across 24 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Lim for performance year 2024, reported as part of a group. Dr. Lim accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Lim as offering telehealth. CMS counts 562 procedures of colonoscopy by Dr. Lim, more than 99% of the clinicians it reports for that procedure.

Dmand AI links 5 papers to Dr. Lim in 2013. The most frequent topics are Gastrointestinal Hemorrhage. Dr. Lim has published most often in South Med J. Dr. Lim's most frequent co-authors are Matthew L. Bechtold, MD, Shoba Theivanayagam, MD and William J. Cobell, MD.

CMS Open Payments shows 1,142 general payments to Dr. Lim from 50 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 77% of the total. QOL Medical, LLC paid the most, $6,185.

Dr. Lim graduated from University of the Philippines College of Medicine in 2006.

Dr. Lim is in network with 15 carriers, including Aetna, Elevance and Excellus BlueCross BlueShield. Medicare plans come from the most carriers, 10. Check the plan with the practice before a visit.