Dr. Daniel C. Grinnan, MD

Dr. Grinnan practices at VCU Medical Center in Richmond, Virginia, part of Commonwealth of Virginia.

Dr. Grinnan's NPI, 1922038496, was assigned on July 3, 2006. Dr. Grinnan graduated from Virginia Commonwealth University, School of Medicine in 2000. Dr. Grinnan holds Virginia license 0101234411.

Dr. Grinnan's primary practice is VCU Medical Center, at 1250 East Marshall Street, Richmond, VA 23298 in Richmond City. The practice phone is (804) 828-9000.

Dr. Grinnan's primary practice is VCU Medical Center in Richmond, Virginia, part of Commonwealth of Virginia. Dr. Grinnan is also affiliated with VCU Health Tappahannock Hospital. The medical group on file is MCV Physicians. Dmand AI also links Dr. Grinnan to 1 more urgent care center, named with a free account.

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

Pulmonary disease is Dr. Grinnan's primary specialty in the NPI Registry, under taxonomy code 207RP1001X. Dr. Grinnan is licensed in Virginia.

CMS data shows 1,060 Medicare services from Dr. Grinnan across 14 procedure codes in 2024, for 343 Medicare patients. Medicare paid $53,906 for them.

CMS counts 343 Medicare patients who saw Dr. Grinnan in 2024. The largest group is 65 to 74, with 147 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 12% are also on Medicaid. Their average risk score is 2.43, 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. Grinnan's median patient age at 71, with 63% women.

In 2024, Dr. Grinnan wrote 3,221 Medicare Part D claims for 267 patients. 59% of them were for generic drugs. CMS names the drug for 2,870 of them, across 54 drugs with 11 or more claims each, at $5,789,548 in total drug cost. In 2023, CMS named 2,471 claims across 48 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 84 out of 100 for Dr. Grinnan for performance year 2024, reported as part of a group. Dr. Grinnan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Grinnan as offering telehealth.

Dmand AI links 6 papers to Dr. Grinnan, published from 2022 to 2024. 2022 was the busiest year, with 4. The most frequent topics are Pulmonary Arterial Hypertension, Familial Primary Pulmonary Hypertension and Hypertension, Pulmonary. Dr. Grinnan has published most often in Pulm Circ. Dr. Grinnan's most frequent co-authors are Todd M. Bull, MD, Teresa De Marco, MD and Evelyn Miriam Horn, MD.

CMS Open Payments shows 16 general payments to Dr. Grinnan from 5 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 88% of the total. Bayer HealthCare Pharmaceuticals Inc. paid the most, $7,521.

Dr. Grinnan graduated from Virginia Commonwealth University, School of Medicine in 2000.