Dr. Joerg Ermann, MD

Dr. Ermann practices at Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham.

Dr. Ermann's NPI, 1629197736, was assigned on March 28, 2007. Dr. Ermann holds Massachusetts license 233979.

Dr. Ermann's primary practice is Brigham and Women's Hospital, at 75 Francis Street, Boston, MA 02115 in Suffolk County. The practice phone is (617) 732-5500.

Dr. Ermann's primary practice is Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham. Dr. Ermann is also affiliated with Dana-Farber Cancer Institute. The medical group on file is Brigham and Women's Hospital. Dmand AI also links Dr. Ermann to 1 more hospital, 1 group practice or clinic and 1 hospital outpatient department, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ermann practices, 5 sites in all. Vendor and product names are available with a free account.

Rheumatology is Dr. Ermann's primary specialty in the NPI Registry, under taxonomy code 207RR0500X. Dr. Ermann is licensed in Massachusetts.

CMS data shows 190 Medicare services from Dr. Ermann across 3 procedure codes in 2024, all of them office visits, for 118 Medicare patients. Medicare paid $12,086 for them.

CMS counts 118 Medicare patients who saw Dr. Ermann in 2024. The largest group is 65 to 74, with 51 patients. 75% of them have arthritis, and 75% have high cholesterol. 26% are also on Medicaid. Their average risk score is 1.53, 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. Ermann's median patient age at 67, with 60% women.

In 2024, Dr. Ermann wrote 649 Medicare Part D claims for 93 patients. 62% of them were for generic drugs. CMS names the drug for 515 of them, across 20 drugs with 11 or more claims each, at $1,631,113 in total drug cost. In 2023, CMS named 410 claims across 18 drugs.

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

Dmand AI links 51 papers to Dr. Ermann, published from 2011 to 2025. 2024 was the busiest year, with 9. The most frequent topics are Spondylarthritis, Inflammatory Bowel Diseases and Spondylitis, Ankylosing. Dr. Ermann has published most often in Spine (Phila Pa 1976). Dr. Ermann's most frequent co-authors are Jacob Mandell, MD, Antonios O. Aliprantis, MD and Zacharia Isaac, MD.

Dmand AI links Dr. Ermann to 1 clinical trial. Conditions studied include Spondylarthritis and Spondylitis.

CMS Open Payments shows 117 general payments to Dr. Ermann from 10 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 74% of the total. Eli Lilly and Company paid the most, $47,236. It also lists 2 research payments totaling $7,402 from 2019 to 2022.