A photo of Adrienne M. Hammill.

Adrienne M. Hammill, MD, PhD

  • Research Director, Hemangioma & Vascular Malformation Program
  • Director, HHT Center of Excellence
  • Director, Sturge-Weber Center/Clinical Care Network
  • Associate Professor, UC Department of Pediatrics
In my clinic, I strive to understand the symptoms and issues for each patient so that I can know when, how and even if they should be treated. Each person is unique and has their own challenges from their disease.
Adrienne M. Hammill, MD, PhD



I am a pediatric hematologist/oncologist, and I have developed interest and expertise in hemangiomas and vascular anomalies. These can be birthmarks or growths made up of blood vessels that formed incorrectly. I am especially interested in conditions that have associated vascular malformations in the brain, such as Sturge-Weber syndrome or hereditary hemorrhagic telangiectasia (HHT).

My path to becoming a physician started when I was 8 years old, when I read an article about retinoblastoma, which is a cancer with a genetic cause. I decided then that I wanted to cure cancer.

During my medical training, I became interested in vascular anomalies. These conditions are not cancers, but share some of the same growth pathways. We are starting to use medicines borrowed from cancer treatment for vascular anomalies.

At Cincinnati Children’s, I am the research director of the Hemangioma and Vascular Malformations Center, and I also participate in our Cerebrovascular Clinic. I am the director of both the HHT Center of Excellence and the Sturge-Weber Clinical Care Network Center.

Cincinnati Children’s has one of only 26 North American Centers of Excellence designated by Cure HHT, and one of approximately 25 centers in the U.S. designated by the Sturge-Weber Foundation. The goal of these centers is to centralize care and improve communication among specialists, in order to improve the patient and family experience for these rare diseases.

I was pleased to be able to serve as a pediatric expert panelist at the HHT Guidelines Consensus Conference in Toronto in 2019, where we updated guidelines for this condition.

In my clinic, I strive to understand the symptoms and issues for each patient so that I can know when, how and even if they should be treated. Each person is unique and has their own challenges from their disease.

In addition to seeing patients, I conduct research. My colleagues and I seek to understand the natural history of these diseases and their complications and work toward better treatments through clinical trials.

Outside the hospital, I love to read and work in my flower garden. I have two teenage/young adult children and enjoy being a soccer mom.

MD: University of Texas Southwestern Medical School, Dallas, TX, 2004.

PhD: University of Texas Southwestern Graduate School of Biomedical Sciences, Dallas, TX, 2004.

Residency: Cincinnati Children’s Hospital Medical Center, Cincinnati, OH.

Fellowship: Cincinnati Children’s Hospital Medical Center.

Certifications: Pediatrics, 2008; Pediatric Hematology Oncology, 2011.


Hemangiomas and other vascular tumors; vascular malformations; Hereditary Hemorrhagic Telangiectasia (HHT); Sturge-Weber Syndrome; genetics of vascular anomalies; clinical trials for vascular anomalies

Services and Specialties

Hereditary Hemorrhagic Telangiectasia, Cerebrovascular, Cancer and Blood Diseases, Hemangioma and Vascular Malformations, Sturge-Weber Syndrome, Rare Lung Diseases

Research Areas

Oncology, Cancer and Blood Diseases, Hematology

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The Role of Hereditary Hemorrhagic Telangiectasia in Neurologic Practice. Taylor, JM; Hammill, AM. Neurology. 2023; 100:1077-1078.


RAND/UCLA Modified Delphi Panel on the Severity, Testing, and Medical Management of PIK3CA-Related Spectrum Disorders (PROS). Broder, MS; Adams, DM; Canaud, G; Collins, C; Davis, K; Frieden, IJ; Gibbs, SN; Hammill, AM; Keppler-Noreuil, KM; Nakano, TA; et al. 2023; 4:e067.


Hereditary hemorrhagic telangiectasia (HHT): a practical guide to management. Hammill, AM; Wusik, K; Kasthuri, RS. Hematology-American Society of Hematology Education Program. 2021; 2021:469-477.


Sirolimus Treatment in Sturge-Weber Syndrome. Sebold, AJ; Day, AM; Ewen, J; Adamek, J; Byars, A; Cohen, B; Kossoff, EH; Mizuno, T; Ryan, M; Sievers, J; et al. Pediatric Neurology. 2021; 115:29-40.


Second International Guidelines for the Diagnosis and Management of Hereditary Hemorrhagic Telangiectasia. Faughnan, ME; Mager, JJ; Hetts, SW; Palda, VA; Lang-Robertson, K; Buscarini, E; Deslandres, E; Kasthuri, RS; Lausman, A; Poetker, D; et al. Annals of Internal Medicine. 2020; 173:989-1001.


Sirolimus for the treatment of juvenile nasopharyngeal angiofibroma. Fernandez, KS; de Alarcon, A; Adams, DM; Hammill, AM. Pediatric Blood and Cancer. 2020; 67:e28162.


Topical sirolimus for the treatment of cutaneous manifestations of vascular anomalies: A case series. Badia, P; Ricci, K; Gurria, JP; Dasgupta, R; Patel, M; Hammill, A. Pediatric Blood and Cancer. 2020; 67:e28088.


Applicability of the Curaçao Criteria for the Diagnosis of Hereditary Hemorrhagic Telangiectasia in the Pediatric Population. Pahl, KS; Choudhury, A; Wusik, K; Hammill, A; White, A; Henderson, K; Pollak, J; Kasthuri, RS. The Journal of Pediatrics. 2018; 197:207-213.


Developmental pharmacokinetics of sirolimus: Implications for precision dosing in neonates and infants with complicated vascular anomalies. Mizuno, T; Fukuda, T; Emoto, C; Mobberley-Schuman, PS; Hammill, AM; Adams, DM; Vinks, AA. Pediatric Blood and Cancer. 2017; 64.


Efficacy and Safety of Sirolimus in the Treatment of Complicated Vascular Anomalies. Adams, DM; III, TC C; Hammill, AM; Vinks, AA; Patel, MN; Chaudry, G; Wentzel, MS; Mobberley-Schuman, PS; Campbell, LM; Brookbank, C; et al. Pediatrics. 2016; 137:e20153257.

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