Dr. Derek Hoa-Thanh Nguyen, MD

Dr. Nguyen practices at Derek Nguyen MD Inc in Riverside, California.

Dr. Nguyen's NPI, 1528054095, was assigned on September 21, 2005. Dr. Nguyen graduated from St. George's University School of Medicine in 2001. Dr. Nguyen's California license number on file is A87744.

Dr. Nguyen's primary practice is Derek Nguyen MD Inc, at 4100 Central Ave, Riverside, CA 92506 in Riverside County. The practice phone is (951) 683-6830.

Dr. Nguyen's primary practice is Derek Nguyen MD Inc in Riverside, California. Dr. Nguyen is also affiliated with Riverside Community Hospital. The medical group on file is Derek H. Nguyen, MD. Dmand AI also links Dr. Nguyen to 1 more hospital, 5 home health agencies, 5 hospices, 5 skilled nursing facilities 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. Nguyen practices, 18 sites in all. Vendor and product names are available with a free account.

Internal medicine is Dr. Nguyen's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Nguyen is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Nguyen's licenses on file in 2 states: California and Nevada.

Dmand AI lists acid reflux, acute gallbladder or bile duct inflammation, acute kidney failure, acute respiratory failure, acute skin infection, alzheimer's disease, anemia and aneurysm among the conditions Dr. Nguyen treats.

CMS data shows 8,452 Medicare services from Dr. Nguyen across 32 procedure codes in 2024, for 768 Medicare patients. Medicare paid $698,250 for them.

CMS counts 768 Medicare patients who saw Dr. Nguyen in 2024. The largest group is 65 to 74, with 263 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 59% are also on Medicaid. Their average risk score is 2.80, 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. Nguyen's median patient age at 70, with 54% women.

In 2024, Dr. Nguyen wrote 17,934 Medicare Part D claims for 870 patients. 85% of them were for generic drugs. CMS names the drug for 16,813 of them, across 236 drugs with 11 or more claims each, at $1,247,584 in total drug cost. In 2023, CMS named 14,942 claims across 232 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 87 out of 100 for Dr. Nguyen for performance year 2024, reported through an alternative payment model (APM). CMS lists Dr. Nguyen as offering telehealth. CMS counts 115 procedures of removal of skin lesions by Dr. Nguyen, more than 76% of the clinicians it reports for that procedure.

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

Dmand AI links 2 papers to Dr. Nguyen, published from 2009 to 2010. The most frequent topics are NIH 3T3 Cells.

CMS Open Payments shows 702 general payments to Dr. Nguyen from 58 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 98% of the total. AstraZeneca Pharmaceuticals LP paid the most, $1,962.

Dmand AI lists 1 award for Dr. Nguyen, most recently CMS Stage 1 EHR in 2012.

Dr. Nguyen graduated from St. George's University School of Medicine in 2001.

Dr. Nguyen is in network with 16 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.