Dr. Christopher A. Tomassian, MD

Dr. Tomassian practices at Dermatology Collective Inc in Glendora, California.

Dr. Tomassian's NPI, 1871097550, was assigned on March 19, 2018. Dr. Tomassian graduated from UMKC School of Medicine in 2018. Dr. Tomassian holds California license 177939.

Dr. Tomassian's primary practice is Dermatology Collective Inc, at 552 W Foothill Blvd, Glendora, CA 91741 in Los Angeles County. The practice phone is (818) 795-8252.

Dr. Tomassian's primary practice is Dermatology Collective Inc in Glendora, California. The medical group on file is The Dermatology Collective. Dmand AI also links Dr. Tomassian to 1 more group practice or clinic, named with a free account.

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

Dermatology is Dr. Tomassian's primary specialty in the NPI Registry, under taxonomy code 207N00000X. Dr. Tomassian is board certified in dermatology by the American Board of Dermatology. Dmand AI has Dr. Tomassian's licenses on file in 3 states: California, Missouri and Kansas.

Dmand AI lists acne, acute skin infection, benign or precancerous skin growths, cold sores or genital herpes, contact dermatitis, hives, itchy rashes and psoriasis among the conditions Dr. Tomassian treats.

CMS data shows 1,597 Medicare services from Dr. Tomassian across 11 procedure codes in 2024, for 291 Medicare patients. Medicare paid $78,221 for them. Every service was in an office.

CMS counts 291 Medicare patients who saw Dr. Tomassian in 2024. The largest group is 65 to 74, with 162 patients. 75% of them have high cholesterol, and 70% have high blood pressure. 19% are also on Medicaid. Their average risk score is 1.22, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Tomassian's median patient age at 63, with 57% women.

In 2024, Dr. Tomassian wrote 1,194 Medicare Part D claims for 415 patients. 90% of them were for generic drugs. CMS names the drug for 1,114 of them, across 21 drugs with 11 or more claims each, at $352,369 in total drug cost. In 2023, CMS named 337 claims across 10 drugs.

Dr. Tomassian accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 542 procedures of removal of skin lesions by Dr. Tomassian, more than 87% of the clinicians it reports for that procedure.

Removal of skin cancer: 1 to 10 procedures (CMS shows small counts as a range)

Dmand AI links 3 papers to Dr. Tomassian, published from 2016 to 2022. Dr. Tomassian's most frequent co-authors are Anand N. Rajpara, MD, Stacey Denise Algren, MD and Samuel Naim Kassar, MD.

CMS Open Payments shows 223 general payments to Dr. Tomassian from 19 drug and device companies from 2020 to 2025. Speaker and faculty fees make up the largest share, 97% of the total. Galderma Laboratories, L.P. paid the most, $203,402.

Dr. Tomassian graduated from UMKC School of Medicine in 2018.

Dr. Tomassian is in network with 16 carriers, including Elevance, United Healthcare and Aetna. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.