Dr. Theodore Willis Laetsch Jr., MD
- Part D claims, 2023
- 14
- Publications
- 96
- Clinical trials
- 8
- Hospital affiliations
- 1
- Industry payments
- $60,242
- Practice address
- 3401 Civic Center Blvd, Philadelphia, PA 19104
- Practice phone
- Call (215) 590-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Laetsch's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Theodore Willis Laetsch Jr. is a pediatrician in Philadelphia, Pennsylvania
Dr. Laetsch practices at Children's Hospital of Philadelphia in Philadelphia, Pennsylvania, part of Children's Hospital of Philadelphia.
Dr. Laetsch's NPI, 1154477834, was assigned on January 26, 2007. Dr. Laetsch graduated from UCSF School of Medicine in 2005. Dr. Laetsch holds Pennsylvania license MD436327.
- NPI
- 1154477834NPI Registry (opens in a new tab)
- NPI enumeration date
- January 26, 2007
- NPI status
- Active
- Practice phone
- (215) 590-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 47
- Medical school graduation
- 2005
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Theodore Willis Laetsch Jr. practices at Children's Hospital of Philadelphia in Philadelphia, Pennsylvania
Dr. Laetsch's primary practice is Children's Hospital of Philadelphia, at 3401 Civic Center Blvd, Philadelphia, PA 19104 in Philadelphia County. The practice phone is (215) 590-1000.
- Children's Hospital of Philadelphia3401 Civic Center Blvd, Philadelphia, PA 19104 · Philadelphia CountyPhone(215) 590-1000
Source: Dmand AI Affiliation Data
Dr. Theodore Willis Laetsch Jr. is affiliated with 1 site of care and 2 medical groups
Dr. Laetsch's primary practice is Children's Hospital of Philadelphia in Philadelphia, Pennsylvania, part of Children's Hospital of Philadelphia. The medical group on file is University of Texas Southwestern Medical Center. Dmand AI also links Dr. Laetsch to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Theodore Willis Laetsch Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Laetsch practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Children's Hospital of Philadelphia | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Theodore Willis Laetsch Jr. is one of 2,468 pediatricians in Pennsylvania
Pediatrics is Dr. Laetsch's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. Laetsch is board certified in pediatric hematology-oncology by the American Board of Pediatrics. Dmand AI has Dr. Laetsch's licenses on file in 10 states: Pennsylvania, Florida, Texas, Delaware, New Jersey, Maryland, North Carolina, Virginia, New York and Colorado.
Specialties and state licenses
- Pediatrics, PennsylvaniaPrimary
- Florida license
- Pediatric hematology and oncology, Texas
- Delaware license
- New Jersey license
- Maryland license
- North Carolina license
- Virginia license
- New York license
- Colorado license
Pediatricians near Dr. Laetsch
Counts of pediatricians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Theodore Willis Laetsch Jr.'s patients have a median age of 17
Across all payers, Dmand AI patient panel data puts Dr. Laetsch's median patient age at 17, with 31% women.
Dr. Laetsch's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 17
Patient panel by sex, all payers
- Women31%
- Men69%
Source: Dmand AI Patient Panel Data
Dr. Theodore Willis Laetsch Jr. wrote 14 Medicare Part D claims in 2023
In 2023, Dr. Laetsch wrote 14 Medicare Part D claims. They cover 1 drug, with $67,679 in total drug cost. In 2022, CMS named 13 claims across 1 drug.
Dr. Laetsch's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 132023: 148%
Drugs named by CMS: 1 in 2023, 1 in 2022.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Theodore Willis Laetsch Jr. has 96 publications on record
Dmand AI links 96 papers to Dr. Laetsch, published from 2016 to 2025. 2022 was the busiest year, with 12. The most frequent topics are Precursor Cell Lymphoblastic Leukemia-Lymphoma, Receptors, Antigen, T-Cell and Protein Kinase Inhibitors. Dr. Laetsch has published most often in J Clin Oncol. Dr. Laetsch's most frequent co-authors are Stephan A. Grupp, MD, Michael Allen Pulsipher, MD and Muna Qayed, MD.
Dr. Laetsch's papers by year, 2016 to 2025
Topics Dr. Laetsch writes about most
- Precursor Cell Lymphoblastic Leukemia-Lymphoma
- Receptors, Antigen, T-Cell
- Protein Kinase Inhibitors
- Antigens, CD19
- Pyrimidines
- Biomarkers, Tumor
- Oncogene Proteins, Fusion
- Antineoplastic Combined Chemotherapy Protocols
Dr. Laetsch's most frequent co-authors
- Stephan A. Grupp, MD16 shared papers
- Michael Allen Pulsipher, MD9 shared papers
- Muna Qayed, MD9 shared papers
Recent publications by Dr. Laetsch
Pediatr Blood Cancer
Lancet Diabetes Endocrinol
See who Dr. Laetsch researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Laetsch works with, so you can find a warm path to the right pediatricians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Theodore Willis Laetsch Jr. has worked on 8 clinical trials
Dmand AI links Dr. Laetsch to 8 clinical trials, 3 of them phase 2 studies. 2 are still active or recruiting. Conditions studied include Burkitt Lymphoma, Headache and Neoplasm Metastasis. Eli Lilly and Company sponsors the most, 2. Open Payments lists research payments to Dr. Laetsch that name 3 trials.
Clinical trials with Dr. Laetsch by phase
- NonePhase 1: no trials
- 1Phase 1/2: 1 trial
- 3Phase 2: 3 trials
- NonePhase 3: no trials
- NonePhase 4: no trials
Conditions in Dr. Laetsch's trials
- Burkitt Lymphoma
- Headache
- Neoplasm Metastasis
- Osteosarcoma
- Precursor Cell Lymphoblastic Leukemia-Lymphoma
Investigators on the most trials with Dr. Laetsch
- Leo Mascarenhas, MD4 shared trials
- Brenda Jane Weigel, MD2 shared trials
- John M. Agaiby, MD1 shared trial
Recent clinical trials with Dr. Laetsch
A Study to Test the Safety and Efficacy of the Drug Larotrectinib for the Treatment of Tumors With NTRK-fusion in Children (opens in a new tab)
Study of Efficacy and Safety of CTL019 in Pediatric ALL Patients (opens in a new tab)
Eribulin Mesylate in Treating Patients With Recurrent or Refractory Osteosarcoma (opens in a new tab)
A Phase II Study of Sirolimus and Erlotinib in Recurrent/Refractory Germ Cell Tumors (opens in a new tab)
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Theodore Willis Laetsch Jr. received $60,242 in industry payments from 2016 to 2025
CMS Open Payments shows 116 general payments to Dr. Laetsch from 7 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 59% of the total. Bayer HealthCare Pharmaceuticals Inc. paid the most, $35,009. It also lists 49 research payments totaling $61,699 from 2016 to 2025, naming 3 clinical trials.
General payments to Dr. Laetsch by program year, 2016 to 2025
General payments to Dr. Laetsch by kind, 2016 to 2025
- Consulting fees$35,69159%
- Travel and lodging$17,48429%
- Food and beverage$3,3686%
- Honoraria$2,7505%
- Education speaker fees$9502%
Companies that paid Dr. Laetsch the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Theodore Willis Laetsch Jr. graduated from UCSF School of Medicine
Dr. Laetsch graduated from UCSF School of Medicine in 2005. Dr. Laetsch is a member of ASCO.
- Medical school
- Board certified in pediatric hematology-oncology
Source: Dmand AI Professional Profile Data
Dr. Theodore Willis Laetsch Jr. accepts plans from 15 insurance carriers
Dr. Laetsch is in network with 15 carriers, including Elevance, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 8. Check the plan with the practice before a visit.
- Elevance
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Highmark
- Horizon Blue Cross Blue Shield of New Jersey
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Molina
- +7 more carriersWith a free account
Plan types Dr. Laetsch accepts, by number of carriers
- PPO8
- Medicare7
- HMO6
- Medicaid4
- POS4
- EPO3
Source: Dmand AI Insurance Network Data
Sources for Dr. Theodore Willis Laetsch Jr.'s profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Theodore Willis Laetsch Jr.
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Theodore Willis Laetsch Jr.'s NPI number?
Dr. Theodore Willis Laetsch Jr.'s NPI number is 1154477834. It was assigned on January 26, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Theodore Willis Laetsch Jr.?
Dr. Theodore Willis Laetsch Jr. is a pediatrician in Philadelphia, Pennsylvania. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. Theodore Willis Laetsch Jr. practice?
Dr. Laetsch practices at 3401 Civic Center Blvd, Philadelphia, PA 19104. Dr. Laetsch's primary practice is Children's Hospital of Philadelphia in Philadelphia, Pennsylvania, part of Children's Hospital of Philadelphia. Dmand AI also links Dr. Laetsch to 1 medical group.
What is Dr. Theodore Willis Laetsch Jr.'s office phone number?
The practice phone on file for Dr. Laetsch is (215) 590-1000.
What is Dr. Theodore Willis Laetsch Jr.'s medical license number?
Dr. Laetsch holds Pennsylvania license MD436327, one of the licenses on file in 10 states.
Which states has Dr. Theodore Willis Laetsch Jr. been licensed in?
Dmand AI has state licenses on file for Dr. Laetsch in Pennsylvania (2009 to 2026), Florida (since 2021), Texas (2013 to 2027), Delaware (2022 to 2025), New Jersey (2022 to 2025), Maryland (2021 to 2024), North Carolina (2021 to 2024), Virginia (2022 to 2024), New York (2021 to 2023) and Colorado (2007 to 2009).
Which hospitals is Dr. Theodore Willis Laetsch Jr. affiliated with?
Dr. Laetsch practices at Children's Hospital of Philadelphia in Philadelphia, Pennsylvania.
What medical group is Dr. Theodore Willis Laetsch Jr. part of?
Dr. Laetsch is linked to University of Texas Southwestern Medical Center. Dmand AI links Dr. Laetsch to 1 more medical group.
Is Dr. Theodore Willis Laetsch Jr. board certified?
Yes. Dr. Laetsch is board certified in pediatric hematology-oncology by the American Board of Pediatrics.
Where did Dr. Theodore Willis Laetsch Jr. go to medical school?
Dr. Laetsch graduated from UCSF School of Medicine in 2005.
Show 6 more questionsShow fewer questions
What drugs does Dr. Theodore Willis Laetsch Jr. prescribe most?
In 2023 Medicare Part D data, Dr. Laetsch's most prescribed drugs by claims were Hizentra.
Has Dr. Theodore Willis Laetsch Jr. received payments from drug or device companies?
CMS Open Payments shows $60,242 in general payments to Dr. Laetsch from 7 companies from 2016 to 2025. The largest total came from Bayer HealthCare Pharmaceuticals Inc.
How long has Dr. Theodore Willis Laetsch Jr. been practicing?
Dr. Laetsch graduated from medical school in 2005, 21 years ago.
Does Dr. Theodore Willis Laetsch Jr. do research?
Dmand AI links 96 publications to Dr. Laetsch, published from 2016 to 2025. Dr. Laetsch has worked on 8 clinical trials.
Who does Dr. Theodore Willis Laetsch Jr. publish with?
Dr. Laetsch's most frequent co-authors are Stephan A. Grupp, MD (16 shared papers), Michael Allen Pulsipher, MD (9 shared papers) and Muna Qayed, MD (9 shared papers).
What insurance does Dr. Theodore Willis Laetsch Jr. accept?
Dr. Laetsch is in network with 15 carriers, including Elevance, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 8. Check the plan with the practice before a visit.
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