Ambiguous identityThis name matches 4 other individuals we could not verify as the same person. Each is kept as a separate record below — treat them as distinct people unless an explicit match is confirmed.
Organizations
2
Roles reported
2
Others who share this name
4
Who this is
Profile
The filed facts are verified from the IRS filings. The biography is compiled from public web sources and grounded to that filed record.
Facts extracted directly from each organization's Form 990, Part VII.
Biography Web-sourced
Dr. Mark D.
Johnson, MD, PhD, is Chair of Neurosurgery at UMass Memorial Medical Center and Professor of Neurological Surgery at the University of Massachusetts Medical School, a position he assumed in 2016. A neurosurgeon specializing in brain tumors and complex neurological cases, he has more than 20 years of clinical experience.
Compiled from public web sources (3 cited), grounded to the filed record.
Track record
Career & tenure
Real tenure, career, and education — from public web sources, what you need to vet a founder or leader beyond the filing window.
Tenure here
2016
Education
1986) · Amherst College (BS Chemistry1986
1995) · Harvard Medical School (MD & PhD1995
completed 2003) · University of Washington (Surgery internship and neurosurgery residency2003
Affiliations
Organizations
Linked as the same person by IRS Schedule R, a shared officer mailing address, or shared fellow board members.
Monongalia Health System INCDirector (end 05/24) · $58.7M revenue · Morgantown, WVTO PROVIDE MANAGEMENT, PLANNING, DEVELOPMENT, COORDINATION, AND OTHER ACTIVITIES RELATED TO THE PROMOTION OF HEALTH CARE WITHIN THE SYSTEM'S SERVICE…Filed FY2024 · Source: Form 990, Part VII
M
Mon Elder Services INCDirector (end 05/24) · $7.1M revenue · Morgantown, WVTO BE THE SENIOR LIVING COMMUNITY OF CHOICE IN MONONGALIA COUNTY. THE RESPECT, TRUST AND FRIENDSHIP OF OUR RESIDENTS WILL BE EARNED EVERY DAY.Filed FY2024 · Source: Form 990, Part VII
Disambiguation
Other people named Mark Johnson MD
Different individuals who share this name, separated by IRS Schedule R, mailing address, and shared-board evidence. The 990 carries no person identifier, so some may still be the same person.
M
Mark Johnson MD2 organizations · Philadelphia, PAChildrens Surgical Associates Ltd
M
Mark Johnson MD2 organizations · Worcester, MAUmass Memorial Health Care INC (parent)
M
Mark Johnson MD1 organization · Atlanta, GAHealthcare Georgia Foundation INC
M
Mark Johnson MD1 organization · Denver, COColorado Medical Society
Network
Serves alongside
Other officers, directors & key employees at this person's organizations, by latest reported compensation.
Public data from IRS Form 990 e-file & the Business Master File. Individuals appear here because they were named as an officer, director, or key employee on a nonprofit's Form 990; people are grouped by name plus corroborating evidence (Schedule R, shared address, shared board members). · philanthropy.org
Sign-in is temporarily unavailable
Leave your email and we’ll let you know when you can finish signing in and follow
the organization.