Dr. Michael James Polydefkis, MD

Dr. Polydefkis practices at Johns Hopkins Bayview Medical Center in Baltimore, Maryland, part of Johns Hopkins Health System.

Dr. Polydefkis' NPI, 1194768614, was assigned on June 13, 2006. Dr. Polydefkis graduated from Johns Hopkins University School of Medicine in 1993. Dr. Polydefkis holds Maryland license D53022.

Dr. Polydefkis' primary practice is Johns Hopkins Bayview Medical Center, at 4940 Eastern Avenue, Baltimore, MD 21224 in Baltimore City. The practice phone is (410) 550-0123.

Dr. Polydefkis' primary practice is Johns Hopkins Bayview Medical Center in Baltimore, Maryland, part of Johns Hopkins Health System. Dr. Polydefkis is also affiliated with The Johns Hopkins Hospital. The medical group on file is Johns Hopkins University. Dmand AI also links Dr. Polydefkis to 1 more medical group, named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Polydefkis practices, 2 sites in all. Vendor and product names are available with a free account.

Neurology is Dr. Polydefkis' primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Polydefkis is licensed in Maryland.

CMS data shows 594 Medicare services from Dr. Polydefkis across 15 procedure codes in 2024, for 216 Medicare patients. Medicare paid $38,432 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 216 Medicare patients who saw Dr. Polydefkis in 2024. The largest group is 65 to 74, with 111 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 7% are also on Medicaid. Their average risk score is 1.44, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Polydefkis' median patient age at 72, with 43% women.

In 2024, Dr. Polydefkis wrote 359 Medicare Part D claims for 39 patients. 70% of them were for generic drugs. CMS names the drug for 272 of them, across 11 drugs with 11 or more claims each, at $1,437,607 in total drug cost. In 2023, CMS named 294 claims across 13 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 83 out of 100 for Dr. Polydefkis for performance year 2024, reported as part of a group.

Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)

Dmand AI links 89 papers to Dr. Polydefkis, published from 2004 to 2025. 2024 was the busiest year, with 9. The most frequent topics are Amyloid Neuropathies, Familial, Nerve Fibers and Peripheral Nervous System Diseases. Dr. Polydefkis has published most often in Neurology. Dr. Polydefkis' most frequent co-authors are John L. Berk, MD, David Raymond Adams, MD, PhD and Thomas H. Brannagan, MD.

Dmand AI links Dr. Polydefkis to 1 clinical trial.

CMS Open Payments shows 211 general payments to Dr. Polydefkis from 9 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 71% of the total. Pfizer Inc. paid the most, $234,331. It also lists 3 research payments totaling $20,500 from 2017 to 2023.

Dr. Polydefkis graduated from Johns Hopkins University School of Medicine in 1993.