Dr. Guy Vin Chang, MD

Dr. Chang practices at Specialty Home Care in Washington, District of Columbia.

Dr. Chang's NPI, 1154718955, was assigned on April 20, 2015. Dr. Chang holds District of Columbia license MD210002191.

Dr. Chang's primary practice is Specialty Home Care, at 6856 Eastern NW Ave, Washington, DC 20012 in District Of Columbia County. The practice phone is (202) 829-1719.

Dr. Chang's primary practice is Specialty Home Care in Washington, District of Columbia. Dr. Chang is also affiliated with MedStar Washington Hospital Center. The medical group on file is MedStar Total Elder Care. Dmand AI also links Dr. Chang to 3 more hospitals, 3 home health agencies, 3 medical groups and 1 hospice, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chang practices, 8 sites in all. Vendor and product names are available with a free account.

Geriatric medicine is Dr. Chang's primary specialty in the NPI Registry, under taxonomy code 207RG0300X. Dmand AI has Dr. Chang's licenses on file in 3 states: District of Columbia, South Dakota and Texas.

CMS data shows 1,183 Medicare services from Dr. Chang across 18 procedure codes in 2024, for 312 Medicare patients. Medicare paid $122,689 for them.

CMS counts 312 Medicare patients who saw Dr. Chang in 2024. The largest group is 85 and over, with 184 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 47% are also on Medicaid. Their average risk score is 2.45, 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. Chang's median patient age at 83, with 73% women.

In 2024, Dr. Chang wrote 1,393 Medicare Part D claims for 186 patients. 85% of them were for generic drugs. CMS names the drug for 914 of them, across 33 drugs with 11 or more claims each, at $139,554 in total drug cost. In 2023, CMS named 486 claims across 22 drugs.

Dr. Chang accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Chang as offering telehealth.

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

CMS Open Payments shows 2 general payments to Dr. Chang from 2 drug and device companies from 2022 to 2025. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $97.