Dr. Karl E. Anderson, MD

Dr. Anderson practices at John Sealy Hospital in Galveston, Texas, part of The University of Texas System.

Dr. Anderson's NPI, 1487713277, was assigned on December 7, 2006. Dr. Anderson graduated from The Johns Hopkins University School of Medicine in 1965. Dr. Anderson holds Texas license H3778.

Dr. Anderson's primary practice is John Sealy Hospital, at 301 University Boulevard, Galveston, TX 77555 in Galveston County. The practice phone is (409) 772-1011.

Dr. Anderson's primary practice is John Sealy Hospital in Galveston, Texas, part of The University of Texas System. The medical group on file is UTMB Faculty Group Practice.

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

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

Dmand AI lists chronic anemia, gastroenteritis and gastrointestinal bleeding among the conditions Dr. Anderson treats.

CMS data shows 64 Medicare services from Dr. Anderson across 2 procedure codes in 2024, all of them office visits, for 69 Medicare patients. Medicare paid $3,729 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 69 Medicare patients who saw Dr. Anderson in 2024. The largest group is 65 to 74, with 27 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 17% 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. Anderson's median patient age at 68, with 58% women.

In 2024, Dr. Anderson wrote 23 Medicare Part D claims for 12 patients. 83% of them were for generic drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 79 out of 100 for Dr. Anderson for performance year 2024, reported as part of a group. Dr. Anderson accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Dmand AI links 166 papers to Dr. Anderson, published from 2005 to 2025. 2019 was the busiest year, with 10. The most frequent topics are Liver, Porphyrins and Diet. Dr. Anderson has published most often in Clin Pharmacol Ther. Dr. Anderson's most frequent co-authors are Robert J. Desnick, PhD, MD, Manisha C. Balwani, MD, MS and Manubai Nagamani, MD.

Dmand AI links Dr. Anderson to 7 clinical trials, 3 of them phase 2 studies. 1 is still active or recruiting. Conditions studied include Porphyria, Acute Intermittent, Porphyria, Variegate and Protoporphyria, Erythropoietic, X-Linked Dominant. Icahn School of Medicine at Mount Sinai sponsors the most, 3.

CMS Open Payments shows 79 general payments to Dr. Anderson from 10 drug and device companies from 2016 to 2024. Consulting fees make up the largest share, 52% of the total. Alnylam Pharmaceuticals Inc. paid the most, $36,032.

Dmand AI lists 3 awards for Dr. Anderson, most recently America's Top Doctors in 2014.

Dr. Anderson graduated from The Johns Hopkins University School of Medicine in 1965.

Dr. Anderson is in network with 22 carriers, including Elevance, Aetna and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 13. Check the plan with the practice before a visit.