Dr. Karen Mann Xu, MD

Dr. Xu practices at Wellstar Cobb Medical Center in Austell, Georgia, part of Wellstar Health System.

Dr. Xu's NPI, 1821443045, was assigned on April 25, 2016. Dr. Xu holds Georgia license 79143.

Dr. Xu's primary practice is Wellstar Cobb Medical Center, at 3950 Austell Rd, Austell, GA 30106 in Cobb County. The practice phone is (770) 732-4000.

Dr. Xu's primary practice is Wellstar Cobb Medical Center in Austell, Georgia, part of Wellstar Health System. Dr. Xu is also affiliated with Wellstar Kennestone Regional Medical Center. The medical group on file is Wellstar Medical Group. Dmand AI also links Dr. Xu to 1 more hospital, 2 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. Xu practices, 5 sites in all. Vendor and product names are available with a free account.

Radiation oncology is Dr. Xu's primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dmand AI has Dr. Xu's licenses on file in 2 states: Georgia and Arkansas.

CMS data shows 1,166 Medicare services from Dr. Xu across 16 procedure codes in 2024, for 98 Medicare patients. Medicare paid $84,439 for them.

CMS counts 98 Medicare patients who saw Dr. Xu in 2024. The largest group is 65 to 74, with 53 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 12% are also on Medicaid. Their average risk score is 1.88, 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. Xu's median patient age at 73, with 50% women.

In 2024, Dr. Xu wrote 105 Medicare Part D claims for 44 patients. 93% of them were for generic drugs. CMS names the drug for 29 of them, across 2 drugs with 11 or more claims each, at $183 in total drug cost. In 2022, CMS named 24 claims across 1 drug.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 94 out of 100 for Dr. Xu for performance year 2024, reported through an alternative payment model (APM). Dr. Xu accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Xu as offering telehealth.

Dmand AI links 14 papers to Dr. Xu, published from 2016 to 2024. 2019 was the busiest year, with 3. The most frequent topics are Prostatic Neoplasms, Androgen Antagonists and Antineoplastic Combined Chemotherapy Protocols. Dr. Xu has published most often in Clin Genitourin Cancer. Dr. Xu's most frequent co-authors are Ashesh B. Jani, MD, Bradley Curtis Carthon, MD, PhD and Joseph William Shelton, MD.

CMS Open Payments shows 55 general payments to Dr. Xu from 26 drug and device companies from 2021 to 2025. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $315.