Dr. James Melvin Long, MD

Dr. Long practices at NorthBay Medical Center in Fairfield, California, part of NorthBay Healthcare.

Dr. Long's NPI, 1194821868, was assigned on September 16, 2006. Dr. Long graduated from UTMB Health in 1984. Dr. Long holds California license C50016.

Dr. Long's primary practice is NorthBay Medical Center, at 1200 B Gale Wilson Blvd, Fairfield, CA 94533 in Solano County. The practice phone is (707) 646-5000.

Dr. Long's primary practice is NorthBay Medical Center in Fairfield, California, part of NorthBay Healthcare. Dr. Long is also affiliated with Sutter Medical Center, Sacramento. The medical group on file is NorthBay Medical Center. Dmand AI also links Dr. Long to 2 more group practices and clinics, 1 home health agency, 1 hospice and 1 medical group, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Long practices, 6 sites in all. Vendor and product names are available with a free account.

Hematology and oncology is Dr. Long's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Long is board certified in hematology by the American Board of Internal Medicine. Dmand AI has Dr. Long's licenses on file in 2 states: California and Texas.

CMS data shows 1,280 Medicare services from Dr. Long across 7 procedure codes in 2024, for 283 Medicare patients. Medicare paid $85,722 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 283 Medicare patients who saw Dr. Long in 2024. The largest group is 65 to 74, with 112 patients. 75% of them have high blood pressure, and 68% have high cholesterol. 28% are also on Medicaid. Their average risk score is 2.15, 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. Long's median patient age at 68, with 60% women.

In 2024, Dr. Long wrote 1,152 Medicare Part D claims for 173 patients. 85% of them were for generic drugs. CMS names the drug for 856 of them, across 36 drugs with 11 or more claims each, at $684,007 in total drug cost. In 2023, CMS named 942 claims across 36 drugs.

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

CMS Open Payments shows 52 general payments to Dr. Long from 20 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 90% of the total. Pfizer Inc. paid the most, $309.

Dr. Long graduated from UTMB Health in 1984.

Dr. Long is in network with 7 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.