Dr. Daniel Mendel Harrison, MD

Dr. Harrison practices at University of Maryland Medical Center in Baltimore, Maryland, part of University of Maryland Medical System.

Dr. Harrison's NPI, 1578733242, was assigned on March 9, 2008. Dr. Harrison graduated from Albert Einstein College of Medicine in 2004. Dr. Harrison holds Maryland license D69474.

Dr. Harrison's primary practice is University of Maryland Medical Center, at 22 South Greene Street, Baltimore, MD 21201 in Baltimore City. The practice phone is (410) 328-8667.

Dr. Harrison's primary practice is University of Maryland Medical Center in Baltimore, Maryland, part of University of Maryland Medical System. Dr. Harrison is also affiliated with University of Maryland Rehabilitation & Orthopaedic Institute. The medical group on file is University of Maryland Neurology Associates, P.A. Dmand AI also links Dr. Harrison to 1 more group practice or clinic, named with a free account.

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

Neurology is Dr. Harrison's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Harrison is board certified in neurology by the American Board of Psychiatry and Neurology. Dmand AI has Dr. Harrison's licenses on file in 3 states: Maryland, Florida and New York.

Dmand AI lists encephalopathy, headaches, migraine and chronic headache, multiple sclerosis, seizures and stroke among the conditions Dr. Harrison treats.

CMS data shows 125 Medicare services from Dr. Harrison across 4 procedure codes in 2024, for 78 Medicare patients. Medicare paid $10,758 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 78 Medicare patients who saw Dr. Harrison in 2024. The largest group is 65 to 74, with 32 patients. 68% of them have high cholesterol, and 67% have high blood pressure. 24% are also on Medicaid. Their average risk score is 1.52, 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. Harrison's median patient age at 55, with 70% women.

In 2024, Dr. Harrison wrote 625 Medicare Part D claims for 58 patients. 77% of them were for generic drugs. CMS names the drug for 459 of them, across 20 drugs with 11 or more claims each, at $1,164,840 in total drug cost. In 2023, CMS named 458 claims across 21 drugs.

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

Dmand AI links 39 papers to Dr. Harrison, published from 2011 to 2025. 2023 was the busiest year, with 4. The most frequent topics are Multiple Sclerosis, Brain and Magnetic Resonance Imaging. Dr. Harrison has published most often in Mult Scler. Dr. Harrison's most frequent co-authors are Peter Arthur Calabresi, MD, John Nolan Ratchford, MD and Izlem Izbudak, MD.

Dmand AI links Dr. Harrison to 2 clinical trials. 1 is still active or recruiting. Conditions studied include Multiple Sclerosis, Multiple Sclerosis, Relapsing-Remitting and Demyelinating Autoimmune Diseases, CNS.

CMS Open Payments shows 87 general payments to Dr. Harrison from 9 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 74% of the total. Sanofi and Genzyme US Companies paid the most, $16,889.

Dmand AI lists 1 award for Dr. Harrison, most recently CMS Stage 1 EHR in 2014.

Dr. Harrison graduated from Albert Einstein College of Medicine in 2004.

Dr. Harrison is in network with 12 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 10. Check the plan with the practice before a visit.