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MJ
Person · officer / director

Mark Johnson MD

Former Assistant Secretary · Childrens Surgical Associates Ltd

Former Assistant Secretary at Childrens Surgical Associates Ltd. Listed as an officer, director, or key employee across 2 organizations on the Form 990 record.

Ambiguous identity This 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

Everything on the left is verified from the IRS filings. The biography on the right is compiled from public web sources and grounded to that filed record.

✓ Verified from filings
Reported as Former Assistant Secretary of Childrens Surgical Associates Ltd, based in Philadelphia, PA.
Also listed as Former Officer of Childrens Surgical Associates of Nj INC, uncompensated.
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.

C
Childrens Surgical Associates Ltd Former Assistant Secretary · $138.3M revenue · Philadelphia, PASEE SCHEDULE Opay $284K → $160KFiled FY2021 · Source: Form 990, Part VII
C
Childrens Surgical Associates of Nj INC Former Officer · $11.6M revenue · Philadelphia, PASEE SCHEDULE OFiled FY2021, FY2020, FY2019 · 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 MD 2 organizations · Morgantown, WVMonongalia Health System INC
M
Mark Johnson MD 2 organizations · Worcester, MAUmass Memorial Health Care INC (parent)
M
Mark Johnson MD 1 organization · Denver, COColorado Medical Society
M
Mark Johnson MD 1 organization · Atlanta, GAHealthcare Georgia Foundation INC

Network

Serves alongside

Other officers, directors & key employees at this person's organizations, by latest reported compensation.

N
Chairman, Director · FY2024
$2.8M
J
Vice President, Director · FY2024
$2.4M
J
Division Chief · FY2024
$2.2M
J
Division Chief · FY2022
$2.0M
W
Physician · FY2024
$2.0M
P
President, Director · FY2024
$2.0M
T
Dir. Sports Med Program · FY2024
$1.7M
P
Physician · FY2024
$1.6M
G
Physician · FY2023
$1.5M
G
Asst Secretary · FY2021
$1.5M
S
Physician · FY2022
$1.5M
S
Physician · FY2024
$1.5M

Network

Recommendations

Written by other verified members of the network — visible once you're a verified person yourself.

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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