Dr. Douglas Long Nguyen, MD

Dr. Nguyen practices at Providence at Home With Compassus Home Health Orange County in Anaheim, California.

Dr. Nguyen's NPI, 1184880114, was assigned on July 30, 2008. Dr. Nguyen graduated from University Of Cincinnati College Of Medicine in 2008. Dr. Nguyen's California license number on file is A113814.

Dr. Nguyen's primary practice is Providence at Home With Compassus Home Health Orange County, at 200 W Center Street Promenade, Anaheim, CA 92805. The practice phone is (657) 640-8090.

Dr. Nguyen's primary practice is Providence at Home With Compassus Home Health Orange County in Anaheim, California. Dr. Nguyen is also affiliated with Loma Linda University Medical Center. The medical group on file is St. Jude Heritage Medical Group. Dmand AI also links Dr. Nguyen to 1 more hospital, 2 medical groups and 1 hospice, each named with a free account. Dr. Nguyen's employer is on file too: a home health agency.

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

Gastroenterology is Dr. Nguyen's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Nguyen is board certified in gastroenterology by the American Board of Internal Medicine. Dmand AI has Dr. Nguyen's licenses on file in 3 states: California, Colorado and Minnesota.

Dmand AI lists acid reflux, acute gastroduodenitis, chronic inflammatory bowel disease (IBD), colonoscopy, gastroenteritis, gastrointestinal bleeding, hemorrhoids and intestinal or bowel obstruction among the conditions Dr. Nguyen treats.

CMS data shows 866 Medicare services from Dr. Nguyen across 10 procedure codes in 2024, for 318 Medicare patients. Medicare paid $104,435 for them.

CMS counts 318 Medicare patients who saw Dr. Nguyen in 2024. The largest group is 65 to 74, with 146 patients. 75% of them have high cholesterol, and 72% have high blood pressure. 8% are also on Medicaid. Their average risk score is 1.31, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Nguyen's median patient age at 68, with 59% women.

In 2024, Dr. Nguyen wrote 1,654 Medicare Part D claims for 466 patients. 74% of them were for generic drugs. CMS names the drug for 1,376 of them, across 34 drugs with 11 or more claims each, at $1,249,137 in total drug cost. In 2023, CMS named 1,099 claims across 30 drugs.

Dr. Nguyen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Nguyen as offering telehealth. CMS counts 83 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Nguyen, more than 73% of the clinicians it reports for that procedure.

Dmand AI links 58 papers to Dr. Nguyen, published from 2011 to 2024. 2011 was the busiest year, with 3. The most frequent topics are Crohn Disease, Colonoscopy and Chi-Square Distribution. Dr. Nguyen has published most often in Ann Gastroenterol. Dr. Nguyen's most frequent co-authors are Matthew L. Bechtold, MD, Srinivas Reddy Puli, MD and Sameer Siddique, MD.

CMS Open Payments shows 3,087 general payments to Dr. Nguyen from 46 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 79% of the total. Abbvie Inc. paid the most, $1,076,492. It also lists 1 research payment totaling $1,925 in 2020.

Dr. Nguyen graduated from University Of Cincinnati College Of Medicine in 2008.

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