Dr. Filemon K. Tan, MD

Dr. Tan practices at Memorial Hermann-Texas Medical Center in Houston, Texas, part of Memorial Hermann Health System.

Dr. Tan's NPI, 1083632319, was assigned on July 17, 2006. Dr. Tan graduated from McGovern Medical School in 1990. Dr. Tan holds Texas license J0874.

Dr. Tan's primary practice is Memorial Hermann-Texas Medical Center, at 6411 Fannin, Houston, TX 77030 in Harris County. The practice phone is (713) 704-3700.

Dr. Tan's primary practice is Memorial Hermann-Texas Medical Center in Houston, Texas, part of Memorial Hermann Health System. Dr. Tan is also affiliated with Memorial Hermann Greater Heights Hospital. The medical group on file is UT Physicians. Dmand AI also links Dr. Tan to 3 more hospitals and 1 group practice or clinic, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tan practices, 6 sites in all. Vendor and product names are available with a free account.

Rheumatology is Dr. Tan's primary specialty in the NPI Registry, under taxonomy code 207RR0500X. Dr. Tan is board certified in rheumatology by the American Board of Internal Medicine. Dr. Tan is licensed in Texas.

Dmand AI lists arteritis, arthritis, gout, joint arthropathy, joint cyst, lupus, muscle disease and muscle pain, fibromyalgia, and limb pain among the conditions Dr. Tan treats.

CMS data shows 43,816 Medicare services from Dr. Tan across 17 procedure codes in 2024, for 363 Medicare patients. Medicare paid $621,801 for them.

CMS counts 363 Medicare patients who saw Dr. Tan in 2024. The largest group is 65 to 74, with 171 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 6% are also on Medicaid. Their average risk score is 1.60, 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. Tan's median patient age at 62, with 80% women.

In 2024, Dr. Tan wrote 1,334 Medicare Part D claims for 205 patients. 78% of them were for generic drugs. CMS names the drug for 1,116 of them, across 36 drugs with 11 or more claims each, at $1,438,968 in total drug cost. In 2023, CMS named 1,645 claims across 45 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 84 out of 100 for Dr. Tan for performance year 2024, reported as part of a group. Dr. Tan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Tan as offering telehealth.

Dmand AI links 74 papers to Dr. Tan, published from 2004 to 2021. 2009 was the busiest year, with 6. The most frequent topics are Scleroderma, Systemic, Genetic Predisposition to Disease and Polymorphism, Single Nucleotide. Dr. Tan has published most often in Arthritis Rheum. Dr. Tan's most frequent co-authors are Maureen D. Mayes, MD, John D. Reveille, MD and Shervin Assassi, MD.

Dmand AI links Dr. Tan to 1 clinical trial. Conditions studied include Scleroderma, Systemic and Rare Diseases.

CMS Open Payments shows 89 general payments to Dr. Tan from 22 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 86% of the total. Abbvie Inc. paid the most, $328.

Dmand AI lists 3 awards for Dr. Tan, most recently Top Doctors:SE Texas in 2013.

Dr. Tan graduated from McGovern Medical School in 1990. Dr. Tan is a member of ACR.

Dr. Tan is in network with 23 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 14. Check the plan with the practice before a visit.