Hematology & Oncology Fellowship

Program Overview

Welcome to the pediatric hematology/oncology fellowship training program at the Nemours Children’s Hospital, Delaware, part of the Thomas Jefferson University medical system. Our freestanding children’s hospital is located in Wilmington, Delaware.

We offer an intensive, three-year ACGME certified training program distinguished by our outstanding clinical and research opportunities and by our dedicated, personal attention to our fellows. We offer intensive teaching and mentoring to our fellows to ensure their success during and after their fellowship training.

Our Pediatric Hematology/Oncology Fellowship Program

Learn more about our program at Nemours Children's Hospital, Delaware.


Our Fellowship Program 

Our clinical staff and patient populations provide a broad exposure to all areas in pediatric hematology/oncology including:

  • Hematological diseases such as sickle cell anemia and variants, the thalassemias, nutritional anemias, bleeding disorders, hypercoagulable disorders, WBC disorders, platelet disorders, hemophagocytic lymphohistiocytosis and related histiocyte disorders
  • Oncological diseases including solid tumors such as sarcomas, neuroblastoma, retinoblastoma and others; a wide range of leukemias and lymphomas and a wide variety of malignant and low-grade brain tumors
  • A FACT accredited bone marrow transplant service including autologous and allogeneic (matched and mismatched) transplants for oncologic, hematologic, immunologic and storage diseases
  • Survivorship clinic and services for survivors of childhood cancer

Fellows are expected to provide complete care for many of these patients with these varied diagnoses and continue to follow their primary patients throughout their fellowship training.


Pediatric hematology/oncology fellowship training programs are three years in length. The majority of the first year is spent learning clinical medicine, with some time set aside for research and clinical electives. First year clinical rotations include inpatient hematology/oncology service, inpatient blood and bone marrow transplant service, outpatient hematology/oncology clinic, outpatient bone marrow transplant clinic and tissue pathology/blood bank and lab medicine. Electives, research and vacation are also part of the first year schedule. There is no in house call.

Pediatric Hematology/Oncology Fellow Schedule

Years two and three are dedicated to scholarly work on an original research project. Clinical and lab research projects are coordinated through the Nemours Center for Childhood Cancer Research. Research opportunities are available on campus or at our associated sites including the University of Delaware and Thomas Jefferson University in Philadelphia.


Weekly conferences cover a wide range of clinical and research topics from tumor boards to journal clubs to specialty conferences such as sickle cell conference. Fellows are expected to attend many of these meetings.

Pediatric Hematology/Oncology Weekly Conference Schedule


Fellows will observe or care for patients in a variety of clinical experiences, including:

  • Participate in inpatient and outpatient care of patients with a wide array of oncologic diagnoses. On average, our Division cares for 125 newly diagnosed oncology patients per year, including a significant number of patients with retinoblastoma in conjunction with providers at Wills Eye Hospital in Philadelphia, Pa.
  • Participate in inpatient and outpatient care of patients with a wide variety of hematologic diseases, including sickle cell disease, hemophilias and bleeding disorders, thrombophilias and bone marrow failure syndromes.
  • Take care of inpatient and outpatient care of patients undergoing hematopoeitic stem cell transplants, both autologous and allogeneic, for malignant and nonmaligant disorders.
  • Participate in care of general pediatric and subspecialty pediatric patients when consultation is requested by colleagues.

The Nemours Children's Center for Cancer and Blood Disorders (NCCBD) is a multisite (Wilmington, Jacksonville and Orlando), comprehensive pediatric oncology and hematology program that combines treatment, research and support services.

Learn More



Nemours is a leader in hematology/oncology research. Our Nemours Center for Childhood Cancer Research (NCCCR) coordinates research activities for fellowship trainees. Our Nemours Center for Cancer and Blood Disorders (NCCBD) uses state-of-the-art technology and resources to perform pediatric bone marrow and stem cell transplants. You’ll be able to explore numerous opportunities on our campus and at our associated sites, including the University of Delaware and Sidney Kimmel Medical College at Thomas Jefferson University (TJU).

As an integral part of your training, you’ll have broad medical research exposure that increases over the program’s 3-year term. While your first year focuses primarily on clinical work, you’ll also have an intensive orientation course that covers research methods, teaching techniques, outcomes research, evidence-based medicine, human subjects training, and other topics. You’ll be encouraged to start thinking about and arranging research projects early, as this will be your focus during the second and third years.

Original, scholarly research is a required element of fellowship training in pediatric hematology/oncology. We have many productive research labs that welcome fellows and are able to train them in lab science and mentor them to master the process of doing original, bench research. We have academic affiliations with Thomas Jefferson University in Philadelphia as well as the University of Delaware that expand our research opportunities. Clinical research opportunities are available as well including epidemiological studies, quality improvement and safety projects. Some qualified fellows in our pediatric hematology/oncology fellowship training program may be able to satisfy program requirements for scholarly work by pursuing additional studies culminating in a graduate degree.

As you shift more toward research activities, you’ll continue to follow your primary patients on regular outpatient clinic days. Nemours provides advanced research facilities and resources on campus, along with encouragement and guidance from professionals.


Sickle Cell

Learn More About Research at Nemours


Salary & Benefits


  • PGY 1: $70,860
  • PGY 2: $73,694
  • PGY 3: $76,642
  • PGY 4: $79,708
  • PGY 5: $82,896
  • PGY 6: $86,212
  • PGY 7: $89,660
  • PGY 8: $93,247


  • Medical
  • Dental
  • Malpractice insurance
  • Office space
  • Work mobile phone
  • Prescription drug coverage
  • Secretarial support
  • Onsite gym and childcare
  • Reimbursement for licensure

About Our Hospital in Delaware

The Nemours Children’s Hospital, Delaware is a multispecialty, tertiary care teaching institution located on a 300-acre estate in the scenic Brandywine Valley in Wilmington, Del.

Among the hospital’s amenities for all staff are:

  • Free parking
  • Park-like setting
  • Gym/fitness center
  • On-site child care center for children of staff

Living in Delaware Valley

Because of our location in the tri-state area of Delaware, New Jersey and Pennsylvania, we offer unique living/working opportunities. For example, you can choose to live in the downtown Philadelphia area and easily commute to our park-like hospital campus in Wilmington.

Explore Wilmington

Nemours Children’s Hospital, Delaware is located in Wilmington, Del., about 30 minutes from center city Philadelphia, and an easy drive to Baltimore, Lancaster County, Pa. (“Amish Country”), and the beaches in Atlantic City and Delaware. There is much to do in and around the city, including mansion and garden tours, museums, breweries, wineries, fine restaurants and numerous state parks.

Learn More About Delaware:

Greater Wilmington Convention and Visitors Bureau

Delaware Tourism

Delaware’s Beaches

Explore Philadelphia

Philadelphia is the sixth largest metropolitan area in the United States and offers a wealth of historical, cultural and recreational opportunities. From world-class museums to its professional sports teams to the colorful, bustling districts of South Street, Chinatown and the Italian Market, Philadelphia has something for everyone.

Learn More About the Philadelphia Area:

New Jersey Beaches

Pennsylvania Mountains

Train With Recognized Leaders

If you’re looking for a rewarding program built on academic excellence and family-centered care, Nemours Children's offers outstanding medical, surgical, pharmacy, nursing, therapy and psychology programs. Train with faculty who are respected leaders in their fields, a patient care model that stands apart and access to groundbreaking research. 

Meet Our Clinical Leadership

Andrew W. Walter, MS, MD

Hematology/Oncology Fellowship Program, Program Director

Division of Pediatric Hematology/Oncology, Department of Pediatrics, Nemours Children’s Hospital, Delaware

Learn More About Dr. Walter

Corinna Schultz, MD

Hematology/Oncology Fellowship Program, Associate Program Director

Division of Pediatric Hematology/Oncology, Department of Pediatrics, Nemours Children’s Hospital, Delaware

Learn More About Dr. Schultz

Meet Our Program Faculty

Megan Askew

Emi H. Caywood, MD

Renee Gresh, DO

Stephanie Guarino, MD, MSHP

Darcy Hamill, MD

Edward Anders Kolb, MD

Robin E. Miller, MD

Katie Parisio

Jonathan L. Powell, MD

Corinna L. Schultz, MD

Andrew W. Walter, MD

Nurse Practitioners

We have outstanding nurse practitioners in the division who are important members of the team.

Each specializes in specific area(s) of expertise:



  • Jean Wadman — sickle cell disease
  • Erin Buda — hemostasis and thrombosis, inpatient hematology consults

Meet Our Participants

Current Participants 

3rd Year

  • Jason white (Residency St. Christopher's)

2nd Year

  • Kim Davidow (Residency Nemours)

1st Year

  • Alexandra Kirsch (Residency St. Christopher's)


  • Sage Green, DO, Dell Children's Medical Group (Focus on neuro oncology)
  • Renee Gresh, DO, Nemours (Focus on leukemia and informatics)
  • Stephanie Guarino, MD, Nemours and cristianaCare (Focus on adolescent oncology and adult sickle cell)
  • Darcy Hamill, DO, Nemours (Focus on leukemia, stem cell transplant and cellular therapies)
  • Katie Parisio, DO, Nemours (Focus on solid tumors)
  • Nidhi Shah, DO, Penn State Health Children's Hospital (Focus on neuro oncology)

Apply Today

Application Requirements

1. Fellowship applicants submit application materials through the Electronic Residency Application Service (ERAS) for pediatric hematology/oncology fellowship training. Residents interested in a fellowship can typically begin the application process in June, with the process concluding with Match Day in December. Potential applicants are encouraged to visit both ERAS and the NRMP sites for updated information regarding application.

2. Curriculum vitae

3. Personal statement

4. Medical school transcript

5. USMLE scores (all 3 levels)

6. Three references

Questions About Applying?

Lindsey Killian
Program Coordinator

Andrew W. Walter, MS, MD
Program Director
(302) 651-5500

Corinna Schultz, MD, MSHP
Associate Program Director
(302) 651-5500