Dr. Grant C. Hughes, MD

Dr. Hughes practices at Harborview Medical Center in Seattle, Washington, part of University of Washington.

Dr. Hughes' NPI, 1912128257, was assigned on May 2, 2007. Dr. Hughes graduated from OHSU School of Medicine in 2001. Dr. Hughes holds Washington license MD00043465.

Dr. Hughes' primary practice is Harborview Medical Center, at 325 9th Avenue, Seattle, WA 98104 in King County. The practice phone is (206) 744-9535.

Dr. Hughes' primary practice is Harborview Medical Center in Seattle, Washington, part of University of Washington. Dr. Hughes is also affiliated with UW Medical Center - Montlake. The medical group on file is UW Physicians. Dmand AI also links Dr. Hughes to 1 more hospital, named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hughes practices, 3 sites in all. Vendor and product names are available with a free account.

Rheumatology is Dr. Hughes' primary specialty in the NPI Registry, under taxonomy code 207RR0500X. Dr. Hughes is board certified in rheumatology by the American Board of Internal Medicine. Dr. Hughes is licensed in Washington.

Dmand AI lists arteritis, arthritis, gout, joint arthropathy, lupus, osteoporosis and rheumatoid arthritis among the conditions Dr. Hughes treats.

CMS data shows 224 Medicare services from Dr. Hughes across 4 procedure codes in 2024, for 91 Medicare patients. Medicare paid $13,047 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 91 Medicare patients who saw Dr. Hughes in 2024. The largest group is 65 to 74, with 39 patients. 70% of them have arthritis, and 66% have high blood pressure. 38% 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. Hughes' median patient age at 58, with 68% women.

In 2024, Dr. Hughes wrote 347 Medicare Part D claims for 55 patients. 65% of them were for generic drugs. CMS names the drug for 266 of them, across 10 drugs with 11 or more claims each, at $820,241 in total drug cost. In 2023, CMS named 322 claims across 11 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 94 out of 100 for Dr. Hughes for performance year 2024, reported through an alternative payment model (APM). Dr. Hughes accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Hughes as offering telehealth.

Dmand AI links 32 papers to Dr. Hughes, published from 2012 to 2025. 2015 was the busiest year, with 3. The most frequent topics are Autoantibodies, Autoimmunity and Immunoglobulin G. Dr. Hughes has published most often in Best Pract Res Clin Rheumatol. Dr. Hughes' most frequent co-authors are Jean W. Liew, MD, Alison Marie Bays, MD and Katharine A. Bradley, MD.

CMS Open Payments shows 2 general payments to Dr. Hughes from 2 drug and device companies from 2017 to 2018. Education make up the largest share, 100% of the total. Genentech, Inc. paid the most, $70.

Dr. Hughes graduated from OHSU School of Medicine in 2001. Dr. Hughes is a member of ACR.

Dr. Hughes is in network with 18 carriers, including Aetna, United Healthcare and Elevance. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.