Rob MacIsaac @RobMacIsaac
President & CEO of Hamilton Health Sciences serving more than 2.3 million residents of Hamilton and Central South and Central West Ontario. hamiltonhealthsciences.ca Hamilton, Ontario Joined January 2012-
Tweets2K
-
Followers3K
-
Following367
-
Likes745
It’s been an honour to serve @HamHealthSci and our health system for the last ten years, and to work with the brightest, most dedicated, and talented team on the planet.
Today is our annual general meeting. Thank you to all our board members for their dedication to HHS and our patients. I'm grateful especially to outgoing chair David Lazzarato and incoming chair @KeithMonrose for their leadership. hamiltonhealthsciences.ca/about-us/our-o…
Heading into the weekend with a fun story about "Docs who rock." #myHHS
Today, reps from organizations across Hamilton & region gather to discuss the vision for a dedicated pediatric hospice in Hamilton at the Pediatric Hospice Symposium. An important step in our journey for this much-needed service.
Today is #NationalIndigenousPeoplesDay #NIPD. At HHS, we recognize and celebrate the history and diversity of First Nations, Inuit and Métis peoples. We are working to create Indigenous healing spaces at all our hospital sites. hamiltonhealthsciences.ca/share/indigeno…

Hamilton Police @HamiltonPolice
136K Followers 759 Following #CrimePrevention & #PublicSafety in partnership with #HamOnt. 🚔Not monitored 24/7. 🚫Not used to report crime. 🚨Non-emergencies call 905-546-4925.
Hamilton Spectator @TheSpec
138K Followers 1K Following Headlines, alerts + comments from Hamilton Spectator. Use #HamOnt to join the conversation. 1-800-263-6902 | Subscribe: https://t.co/Z9xgyqAvA0
St. Joe's Healthcare ... @StJoesHamilton
11K Followers 2K Following Innovative academic health sciences and research centre serving Hamilton and beyond. Powered by Unstoppable Compassion. St. Joseph’s Health System member.
Hamilton Health Scien... @hamhealth
4K Followers 4K Following Hamilton Health Sciences Foundation provides vital funding to enable the best possible patient care at @hamhealthsci.
Terry Cooke @TerryJCooke
7K Followers 6K Following Retired CEO Hamilton Community Fdn., recovering ex-politician, bball junkie, slow marathoner, lover of my 3 kids, @Ward1Wilson, our dogs, books, travel, #HamOnt
Laura Babcock 🇨�... @LauraBabcock
25K Followers 3K Following Passion for protecting democracy. Proud Mom, Biz Owner, PR, Media Trainer, National Pundit, Host of The OShow Canada's Current Affairs Podcast 🇨🇦
Maureen Wilson (She /... @ward1wilson
7K Followers 4K Following Moving on to blue skies https://t.co/Uu5FNvWu79
HWDSB @HWDSB
42K Followers 715 Following We empower students to learn and grow to their full potential in a diverse world. Not monitored 24/7. In a crisis? Visit https://t.co/ADiaYLIcGp for support.
Neil Johnson 🇨🇦 @JohnsonNeilG
1K Followers 599 Following 🇨🇦 Husband, dad (grown humans), pharmacist, Cancer exec #MyHHS / OH-CCO, healthcare leadership, Lake Huron cottage & sunsets, academic healthcare, my views
CHCH News @CHCHNews
107K Followers 647 Following CHCH is proud to be the news leader in Hamilton, Halton and Niagara. Watch live online at https://t.co/UuhdoUKntU for all the latest news coverage.
President, St. Joe's ... @SJHHPresident
2K Followers 1K Following This account is no longer active. Please connect with, @StJoesHamilton for up to date information or visit https://t.co/Omj5gEARjV
Amie Archibald-Varley @AmieVarley
13K Followers 10K Following National Best Selling Author “The Wisdom of Nurses” Speaker @NSB_Speakers Health Equity Advocate Podcast @atypicalamiepod @grittynurse Emerging 🎥
Hamilton Paramedics @HPS_Paramedics
20K Followers 540 Following The official Twitter account of Hamilton Paramedic Service. This account is monitored M-F 8-4. In case of emergency, dial 911. #HamOnt
Melissa McCallum @nursemcc
345 Followers 573 Following Executive Director of the Greater Hamilton Health Network, RN, coffee and chocolate obsessed, thoughts and opinions reflect my own values and beliefs
Filomena Tavares @TavaresFil
799 Followers 426 Following Part of the #pedsICU team @mch_childrens and @hamhealthsci
Ontario Hospital Asso... @OntHospitalAssn
32K Followers 2K Following Serving Ontario’s hospitals to build a better health system.
Zain Chagla @zchagla
20K Followers 3K Following Infectious Diseases Physician at St. Joe's Hamilton / Associate Professor at McMaster University. Views are mine alone and don’t reflect institutions.
tamar packer @PackerTamar
621 Followers 88 Following EVP Academic and Chief Med Executive @HamHealthSci Impactful health care. Medical leadership with meaning, Innovation. @GHHN_TheNetwork
Marianne Meed Ward @MariannMeedWard
15K Followers 11K Following Working everyday day with you as Mayor for a better Burlington. Connect: [email protected]. Respectful debate: https://t.co/jy8elk0GHL
Julia Hanigsberg @Hanigsberg
12K Followers 5K Following Pres/CEO @hbkidshospital | board member | healthcare champion | mom of 3 | baker
Uvrirarbe @Uvrirarbe12719
33 Followers 2K Following
Catherine @samuel97689841
104 Followers 3K Following Traveling alone is not lonely, because there are furry children to accompany you 🐾✈️ Wherever you go, it is the direction of home
Jackson @Estella4559082
2K Followers 7K Following I'm jackson the powerball winners of $980M, I'm using this medium to appreciate this special gift by giving out 50,000 dollars to each of my followers
Lily Ava @LilyAva29
18 Followers 314 Following Hey, I’m Eva lily but all my friends call me Hopeless Romantic. What can I say? I’ve got a big, sappy heart and no one to fill it! At the end of the day,
Philip Bradshaw For W... @bradshawward7
558 Followers 1K Following I am a firm believer in forging a feeling of community among the residents and businesses in Ward 8.
Grace Walker @mayu_jimene
8 Followers 337 Following Managing Partner at Richemont. Passionate about heritage luxury, strategic growth & global leadership in fine craftsmanship.
Helen Henry @helenhenry888
678 Followers 2K Following Interior designer at Sea & Oak Design | Shareholder at LEVEL UP Design LLC | Architecture enthusiast Living for creativity and inspiration
Thurneb @ThurnebcUf
52 Followers 5K Following
Katie Evans @evan_billiond
7 Followers 156 Following I’m a caring and honest lady I’m a billionaire from a whealthy family and I came here to help the poor’s and riches in situations of money
Haley Anneliese @pmhsm
159 Followers 656 Following Dreamer 💫 Chasing goals 💖 Spreading kindness ✨ Living my best life 🍃 Lover of nature & good vibes
Lorraine Cooper @jacob24671384
118 Followers 2K Following ‘We can't solve problems with the same thinking that created them.’
Kieran Holland | Heal... @kieranholland
587 Followers 4K Following Learning health systems embrace warranted variation. HealthPathways Network - Clinical Director of Research. Argentine tango addict @kieranholland.bsky.social
ChildrensTraveldoc @CTraveldoc
1K Followers 5K Following UK Consultant Paediatrician sub-specialised in Travel Medicine
Amanda $LUNC 🌖 @Amandas_lunc
1K Followers 7K Following DOG Lover & #Crypto Enthusiast 🌖 #LUNC #SHIB #LUNA #BNB #ETH #BSC #BTC #BITCOIN #CRO #DYOR 🌖 DM if you want to Make $500k+ ➡️investment👩💻
Ryan Rushton @rushtonrj
388 Followers 455 Following Dad. Baseball fanatic. 1/2 of the Hot Dog Guys with @jodster99 @looniedogkings
Michelle Wan (she/her... @mwan88
282 Followers 849 Following Mom of 2 |Healthcare #Engagement advisor | #SandwichGeneration Caregiver | #WorkLifeBalance champion
Jordana @Jordana333404
255 Followers 554 Following Savor every moment of life with your heart. Whether it's traveling, reading, or spending time with loved ones, it's all worth cherishing. #EnjoyLife #HappyMomen
Kranthi Gundrathi @KranthiGun75124
7 Followers 215 Following Financial Consultant At Al Rayan Investment
Jörg Vollmer @JorgVollmer54
106 Followers 2K Following Army general and served as Commander of the NATO .
Anna Rust❤️🇺�... @Jinayi_0604
82 Followers 482 Following Every dream can come true if you have the courage to pursue it 🌟Play tennis🎾🎾 ✨Love to travel🛫✈️
thomasjd @thomasjd20
39 Followers 574 Following
Let's stop Peter Chu ... @DrChuVictims
0 Followers 42 Following it is time for the victims of "Dr." Peter Chu of #HamOnt to stop him
Ontario Health West @ON_Health_West
349 Followers 417 Following @OntarioHealthOH West connects & coordinates the health care system. La région Ouest met en relation et coordonne le système de soins de santé
Jeanette Volino @JeanetteVolino1
86 Followers 498 Following Reading a good book is like talking to many noble people. An open book where everything is its own point of view, not a sugar momma🥰🥰🥰🥰🚫No Crypto
Jessical Amaral @Am85040Amaral
32 Followers 137 Following
Geraldine So @GeraldineSo2
3 Followers 39 Following
Roslin @kevinhyatt99
15 Followers 144 Following My name is Roslin . I usually like golf, yoga, fitness, diving, etc. Live the way you want.
Apex tutorial School @tutorial_apex
67 Followers 540 Following Math & Science tutoring & Entrance test Preparation Entry Diagnostic test, Teaches courses, Homework help, Quizzes & Exams 289-933-7035, [email protected]
fernando caiella @CaiellaFernando
1 Followers 67 Following
Karen_m @Karenm03971748
15 Followers 94 Following
Carrie《animal prote... @shahdatriad
61 Followers 389 Following Achieve the ideal goal of improving the living environment of animals
Dr. Asya Agulnik @DrAsyaAgulnik
997 Followers 1K Following #BoyMom and #PedsICU focused on reducing global disparities in #ChildhoodCancer outcomes, particularly for #PedsOncICU (opinions mine)
ASQLeia @SQDLeia
7 Followers 32 Following ASQ Service Quality Division Chair and change management professional. Oh, and an amateur photographer too.
Morrison Moving @MorrisonMoving
5K Followers 5K Following 🏆 Award-winning Moving Company in #HamiltonOntario. 👍 Best for outstanding customer service & support. 📞 (905) 525-8332 #morrisonmoving #hamont
Ndar Cale @ALONG9693367643
59 Followers 267 Following Never let fear stop me from doing something I really love. Golf ⛳ Diving 🤿 Skiing 🎿
Healthcare Management @HealthcareUCG
596 Followers 3K Following 17th International Healthcare, Nursing and Hospital Management Conference will be held from December 17-19, 2025.
Hamilton RN @lovemydogs_rn
8 Followers 66 Following
nodnnn @nodnnn1
28 Followers 964 Following
Bill Meredith @BillMeredith
149 Followers 867 Following Healthcare Strategic Advisor. From Canada, based in Ireland, and interested in hearing about improved healthcare outcomes anywhere.
Mary @MaryKRe
3K Followers 7K Following Longtime medical writer for clinical research (study reports, protocols, journal articles)
Anjali Menezes @anjali_menezes
604 Followers 733 Following 🍉DARe Group Collaborative - lead | Family Doc | #MedEd | anti racism research | settler | scholar @MERIT_mcmaster | views my own
McMaster Pathology & ... @McMasterPMM
203 Followers 401 Following Official Twitter account for the @McMasterU Department Of Pathology & Molecular Medicine (PMM)
McMaster University D... @MacUPediatrics
799 Followers 2K Following Official account of the Dept. of Pediatrics at @McMasterU working towards our vision of a brighter path for every child and their family. M to F: 9 am to 5 pm
Jacqueline @emad645517
60 Followers 552 Following 🌍 Travel lovers 🍲cooking lovers ⛳ Golf enthusiasts, biotechnology, AI smart technology, medicine and international trade
Hamilton Spectator @TheSpec
138K Followers 1K Following Headlines, alerts + comments from Hamilton Spectator. Use #HamOnt to join the conversation. 1-800-263-6902 | Subscribe: https://t.co/Z9xgyqAvA0
St. Joe's Healthcare ... @StJoesHamilton
11K Followers 2K Following Innovative academic health sciences and research centre serving Hamilton and beyond. Powered by Unstoppable Compassion. St. Joseph’s Health System member.
André Picard @picardonhealth
133K Followers 2K Following André Picard is the health columnist at The Globe and Mail and author of "NEGLECTED NO MORE". I tweet about public health, health policy, and journalism.
Hamilton Health Scien... @hamhealth
4K Followers 4K Following Hamilton Health Sciences Foundation provides vital funding to enable the best possible patient care at @hamhealthsci.
Andrea Horwath @AndreaHorwath
146K Followers 2K Following Mom. Hamiltonian. Mayor of Hamilton. she/her. Get in touch: [email protected]
City of Hamilton @cityofhamilton
108K Followers 43 Following Official City of Hamilton communications account. For service requests, contact 905-546-CITY or [email protected]. Account monitored Mon-Fri, 8:30a-4:30p.
Terry Cooke @TerryJCooke
7K Followers 6K Following Retired CEO Hamilton Community Fdn., recovering ex-politician, bball junkie, slow marathoner, lover of my 3 kids, @Ward1Wilson, our dogs, books, travel, #HamOnt
Maureen Wilson (She /... @ward1wilson
7K Followers 4K Following Moving on to blue skies https://t.co/Uu5FNvWu79
HWDSB @HWDSB
42K Followers 715 Following We empower students to learn and grow to their full potential in a diverse world. Not monitored 24/7. In a crisis? Visit https://t.co/ADiaYLIcGp for support.
Neil Johnson 🇨🇦 @JohnsonNeilG
1K Followers 599 Following 🇨🇦 Husband, dad (grown humans), pharmacist, Cancer exec #MyHHS / OH-CCO, healthcare leadership, Lake Huron cottage & sunsets, academic healthcare, my views
CHCH News @CHCHNews
107K Followers 647 Following CHCH is proud to be the news leader in Hamilton, Halton and Niagara. Watch live online at https://t.co/UuhdoUKntU for all the latest news coverage.
President, St. Joe's ... @SJHHPresident
2K Followers 1K Following This account is no longer active. Please connect with, @StJoesHamilton for up to date information or visit https://t.co/Omj5gEARjV
Steve Paikin @spaikin
105K Followers 365 Following https://t.co/KLyaoHnc7a; Host, "The Paikin Podcast"; Co-host, the "#onpoli podcast"; Host, TVO Today Live; Host, Ontario Chronicle; Columnist, Toronto Star
Filomena Tavares @TavaresFil
799 Followers 426 Following Part of the #pedsICU team @mch_childrens and @hamhealthsci
Ontario Hospital Asso... @OntHospitalAssn
32K Followers 2K Following Serving Ontario’s hospitals to build a better health system.
tamar packer @PackerTamar
621 Followers 88 Following EVP Academic and Chief Med Executive @HamHealthSci Impactful health care. Medical leadership with meaning, Innovation. @GHHN_TheNetwork
Ontario Nurses' Assoc... @ontarionurses
32K Followers 504 Following We are 68,000 nurses & health-care professionals, & 18,000 nursing students. Stay in the Fight. And fight like a nurse. General queries: [email protected] #onlab
McMaster University @McMasterU
83K Followers 378 Following News and updates from McMaster University.
Bob Bell @drbobbell
9K Followers 860 Following Former surgeon and health system leader. Current grandpa. Advocate for universal, sustainable and excellent care that will be there for our grandchildren.
Alim Pardhan @AlimPardhan
3K Followers 3K Following EM/PEM Physician, Tweets my Own, RT not endorsements. https://t.co/T9ab4sTw2i
Jeschke Lab @JeschkeLab
159 Followers 154 Following Research life of the @MarcJeschke Lab @HamHealthSci / @McMasterU We study #immunometabolism, #ageing, #skinregeneration in burns for improving patient outcomes
Marc Jeschke @marcjeschke
358 Followers 554 Following Husband to one, Dad of four, Burn Surgeon for many, Researcher for some, and not so successful biker just for me.
GHHN Primary Care Net... @GHHN_PCN
875 Followers 356 Following The Primary Care Network of the GHHN - resources, networking, advocacy and support. #hamont #GHHN #OHT #primarycarematters #familydocsrock
Khalid (He/Him) @Azzam_Khalid
694 Followers 450 Following Academic General Internist and Physician Leader, Husband, and Dad.
Charles E Pascal @CEPascal
5K Followers 1K Following Partner,dad,granddad,@OISEUofT professor,former @ONgov dep min. Focus:education/ politics/sports w social justice as common denominator!TW's=personal opinion
CivicAction @CivicActionCA
11K Followers 3K Following Building better, more inclusive cities for everyone who calls the #GTHA home.
Peter Fitzgerald @MCHPedSurg
417 Followers 209 Following Pediatric surgeon at McMaster Children’s Hospital
Greater Hamilton Heal... @GHHN_TheNetwork
610 Followers 279 Following The Greater Hamilton Health Network (GHHN) is Hamilton, Haldimand and Niagara Northwest's Ontario Health Team. #OHT
William Orovan @OrovanWilliam
2 Followers 16 Following
Erika McCarthy @ErikaJ_McCarthy
122 Followers 166 Following Mom to a very sweet boy... Partner at @bauditdesign ... Happy in #HamOnt
PHRI.ca Population He... @PHRIresearch
5K Followers 5K Following Birthplace of 9 most measurable modifiable risk factors for #heartdisease #stroke @McMasterU @hamhealthsci ACT on #clinicaltrials https://t.co/e2tfqDv6NB
Department of Medicin... @UofT_DoM
5K Followers 968 Following We are a cadre of researchers, scientists, teachers & learners across 20 divisions — a powerhouse of knowledge translation & advancements in clinical care.
Dominik Mertz @DocDominik
4K Followers 123 Following ID physician and hospital epidemiologist, McMaster University; dad; expat from Switzerland, now proud Hamiltonian; opinions my own creation.
David Chan @UofTNeurologyPD
981 Followers 388 Following Adult Neurology Residency Program Director @uoftneurology @uoftmedicine | Clinician-Educator @uoft_dom | Neurologist @stmikeshospital | Husband, dad, oenophile
Lorraine Jensen, MD (... @DrLJensen
552 Followers 613 Following Chief, Department of Medicine & Program Medical Director @niagarahealth | Assoc. prof @MacMedNRC | Big @MapleLeafs fan | Mom of 2 | Opinions are my own
Homer Tien (He/His) @HomerTien
3K Followers 258 Following President and CEO, ORNGE Air Ambulance and Critical Care Transport, Trauma Surgeon at Sunnybrook Health Sciences Centre, Veteran and Reserve Force Member
Aikta Verma @aiktaverma
1K Followers 393 Following Emerg Doc. Mom. Pro 😷 💉 🐈 🍷🏃🏽♀️ (not in that order)
Dr. Sonia Anand @DrSoniaAnand1
3K Followers 1K Following @mcmasteru professor in the @MacDeptMed. AVP Global Health @machealthsci. Interested in #Equity in research. #vascular #medicine #ethnicity. Opinions my own.
Anita Anand @AnitaAnandMP
112K Followers 3K Following MP for Oakville East | Minister of Foreign Affairs | Députée d'Oakville-Est | Ministre des Affaires étrangères 🇨🇦
William Osler Health ... @OslerHealth
7K Followers 840 Following A multi-site health system serving Brampton, North Etobicoke and surrounding communities. 🏥 Peel Memorial, Etobicoke General & Brampton Civic 🔬#OslerResearch
Donna Skelly @SpeakerSkelly
7K Followers 1K Following Speaker of the Legislative Assembly of Ontario | MPP Flamborough-Glanbrook
Joe Biden @JoeBiden
38.1M Followers 46 Following Husband to @DrBiden, proud father, grandfather, and great grandfather.
Bill Clinton @BillClinton
12.8M Followers 39 Following Husband, Father, Grandfather, 42nd President of the United States, Founder of @ClintonFdn, Author of CITIZEN 🇺🇸
Ken Segel @ktsegel
419 Followers 425 Following CEO at Value Capture. Trusted Advisory support for health system CEOs seeking to build organizations of habitual excellence.
Barry Lumb @BarryLumb
371 Followers 401 Following Professor, Department of Medicine Division of Gastroenterology
Sylvain Roy 🇨🇦 @DrSylvainRoy
7K Followers 5K Following Neuropsychologist | Clinical lead - https://t.co/s0bzvr5Yt3 | Digital health @StrataHealth | Systems innovation.
The Lincoln Project @ProjectLincoln
2.8M Followers 1K Following "You cannot escape the responsibility of tomorrow by evading it today.” – Abraham Lincoln 🏴☠️ | Home of #TheBreakdown and LP Podcast
Michelle Leafloor @MichelleLeaflo1
138 Followers 47 Following VP Health Information Technology Services and CIO, Hamilton Health Sciences
Alex Munter @AlexMunter
34K Followers 8K Following Dad. Son. Spouse. Health and healthcare advocate. Ottawan. 🏳️🌈 No longer active on Twitter. You can find me on other platforms.
MohawkSean @SeanatMohawk
11 Followers 3 Following Works in Communications at Mohawk College. Our job is to keep you informed about what's happening at Mohawk College.
Canada's CPHO @CPHO_Canada
282K Followers 175 Following Official account of Canada's Chief Public Health Officer. Terms of use: https://t.co/uljQ8rG6es Français: @ACSP_Canada
Theresa Boyle @theresaboyle
21K Followers 5K Following Health reporter @TorontoStar, [email protected].
Toronto Star @TorontoStar
1.2M Followers 287 Following Get the latest news, alerts, sports, photos and more from Canada's largest daily newspaper. ⏩ YouTube: (@)torontostar | TikTok: (@)torontostar
Sarah Cooper @sarahcpr
1.7M Followers 4K Following Writer and comedian. Ask me if Zombo is right for you
Trish Loomis @trish_loomis
289 Followers 164 Following
cathy watts @cathywattsP2P
192 Followers 188 Following Clinical Leader PICU, Pediatric Critical Care Transport McMaster Children’Hospital, Co-founder Peer2Peer Consultants
Bruce Squires @BrucePSquires
1K Followers 397 Following President, McMaster Children's Hospital and VP, Women's & Children's Health, HHS. Chair, Children's Healthcare Canada. Proudest Dad and Husband. He/Him
Julie Matthews @juliematthewsss
110 Followers 111 Following
Dr Smita Halder @smitaluna
427 Followers 709 Following Assoc Prof in GI @MacDeptMed | Senior Medical Officer @HamHealthSci | Master Certified Physician Development Coach| Wife,Mum,Medical Leader | Mcr➡️TO🇬🇧🇨🇦
Daniela M. Bianco @DBianco_HHSC
222 Followers 250 Following Energetic leader and proactive thinker managing multidisciplinary initiatives that support/promote research development and sustainability at HHS.
Dr. Tom Stewart @DrThomasStewart
1K Followers 794 Following
Lynn Guerriero @LynnGuerriero
890 Followers 539 Following President & CEO @niagarahealth. Only official account.
HGCC @HamiltonGolf
465 Followers 12 Following Hamilton Golf and Country Club, nestled in Ancaster ON, is a premium private club with 27 holes, 1000+ members and in the top 100 courses in the world!
SXSW @sxsw
601K Followers 10K Following Helping creative people share ideas and achieve their goals since 1987. SXSW 2026: March 12-18 | Austin, TX