Dr. Christopher Andrej Hajnik, MD

Dr. Hajnik practices at San Dieguito Orthopedic Medical Center PC in Encinitas, California.

Dr. Hajnik's NPI, 1083883987, was assigned on February 25, 2008. Dr. Hajnik graduated from Sidney Kimmel Medical College in 2003. Dr. Hajnik holds California license A114865.

Dr. Hajnik's primary practice is San Dieguito Orthopedic Medical Center PC, at 332 Santa Fe Drive, Encinitas, CA 92024. The practice phone is (760) 943-6700.

Dr. Hajnik's primary practice is San Dieguito Orthopedic Medical Center PC in Encinitas, California. Dr. Hajnik is also affiliated with Scripps Memorial Hospital Encinitas. The medical group on file is CORE Orthopaedic Medical Center. Dmand AI also links Dr. Hajnik to 1 more group practice or clinic, 1 home health agency, 1 skilled nursing facility and 1 medical group, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hajnik practices, 5 sites in all. Vendor and product names are available with a free account.

Orthopaedic surgery is Dr. Hajnik's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Hajnik is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery. Dmand AI has Dr. Hajnik's licenses on file in 6 states: California, New York, Oregon, Washington, Florida and Illinois.

Dmand AI lists arthritis, bursitis, fluid in a joint, hip replacement, joint pain, knee arthroscopy, knee fracture and dislocation and knee injury among the conditions Dr. Hajnik treats.

CMS data shows 1,490 Medicare services from Dr. Hajnik across 16 procedure codes in 2024, for 362 Medicare patients. Medicare paid $157,435 for them.

CMS counts 362 Medicare patients who saw Dr. Hajnik in 2024. The largest group is 65 to 74, with 177 patients. 75% of them have arthritis, and 75% have high cholesterol. 5% are also on Medicaid. Their average risk score is 1.01, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Hajnik's median patient age at 70, with 58% women.

In 2024, Dr. Hajnik wrote 128 Medicare Part D claims for 90 patients. 100% of them were for generic drugs. CMS names the drug for 94 of them, across 2 drugs with 11 or more claims each, at $517 in total drug cost. In 2023, CMS named 113 claims across 2 drugs.

Dr. Hajnik accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 38 procedures of hip replacement by Dr. Hajnik, more than 81% of the clinicians it reports for that procedure.

Dmand AI links 4 papers to Dr. Hajnik in 2024. 2024 was the busiest year, with 2. Dr. Hajnik's most frequent co-authors are Laith Jazrawi, MD, Douglas John Wyland, MD and Sam Akhavan, MD.

Dmand AI links Dr. Hajnik to 2 clinical trials. Conditions studied include Osteoarthritis, Osteoarthritis, Knee and Rheumatic Diseases. Zimmer Biomet sponsors the most, 2.

CMS Open Payments shows 423 general payments to Dr. Hajnik from 19 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 74% of the total. Zimmer Biomet Holdings, Inc. paid the most, $146,858. It also lists 5 research payments totaling $7,740 from 2018 to 2021.

Dmand AI lists 1 award for Dr. Hajnik.

Dr. Hajnik graduated from Sidney Kimmel Medical College in 2003.

Dr. Hajnik is in network with 16 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.