Dr. Timothy Lang Tan, MD

Dr. Tan practices at Sierra View Medical Center in Porterville, California, part of Sierra View Medical Center.

Dr. Tan's NPI, 1023404910, was assigned on April 8, 2015. Dr. Tan graduated from David Geffen School of Medicine at UCLA in 2014. Dr. Tan's California license number on file is A167215.

Dr. Tan's primary practice is Sierra View Medical Center, at 465 W Putnam Ave, Porterville, CA 93257 in Tulare County. The practice phone is (559) 784-1110.

Dr. Tan's primary practice is Sierra View Medical Center in Porterville, California, part of Sierra View Medical Center. Dr. Tan is also affiliated with Kaweah Health Medical Center. The medical group on file is Porterville Community Physicians. Dmand AI also links Dr. Tan to 2 more home health agencies and 2 medical groups, each named with a free account.

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

Orthopaedic surgery is Dr. Tan's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Tan is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery. Dmand AI has Dr. Tan's licenses on file in 2 states: California and Pennsylvania.

Dmand AI lists arthritis, bursitis, enthesopathy in foot or ankle, hip replacement, joint pain, knee replacement, lower back pain and pelvic and hip fracture among the conditions Dr. Tan treats.

CMS data shows 292 Medicare services from Dr. Tan across 4 procedure codes in 2024, for 170 Medicare patients. Medicare paid $45,115 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 170 Medicare patients who saw Dr. Tan in 2024. The largest group is 65 to 74, with 85 patients. 75% of them have arthritis, and 75% have high blood pressure. 59% are also on Medicaid. Their average risk score is 1.16, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Tan's median patient age at 66, with 63% women.

In 2024, Dr. Tan wrote 636 Medicare Part D claims for 179 patients. 99% of them were for generic drugs. CMS names the drug for 585 of them, across 7 drugs with 11 or more claims each, at $2,472 in total drug cost. In 2023, CMS named 459 claims across 9 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 98 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 counts 56 procedures of knee replacement by Dr. Tan, more than 82% of the clinicians it reports for that procedure.

Dmand AI links 113 papers to Dr. Tan, published from 2015 to 2024. 2018 was the busiest year, with 15. The most frequent topics are Arthroplasty, Replacement, Knee, Prosthesis-Related Infections and Arthroplasty, Replacement, Hip. Dr. Tan has published most often in J Arthroplasty. Dr. Tan's most frequent co-authors are Antonia F. Chen, MD, Michael Maher Kheir, MD and Alisina Shahi, MD, PhD.

CMS Open Payments shows 106 general payments to Dr. Tan from 17 drug and device companies from 2018 to 2025. Travel and lodging make up the largest share, 37% of the total. Stryker Corporation paid the most, $6,794.

Dmand AI lists 21 awards for Dr. Tan, most recently Best Poster - Primary Hip in 2020.

Dr. Tan graduated from David Geffen School of Medicine at UCLA in 2014.

Dr. Tan is in network with 8 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.