Areas of Expertise
MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.
Learn more about MediFind’s expert tiers
Find Dr. Hollen's expertise for a condition
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- Advanced
- Breast CancerDr. Hollen isAdvanced. Learn about Breast Cancer.
- Metastatic Brain TumorDr. Hollen isAdvanced. Learn about Metastatic Brain Tumor.
- Posterior Fossa TumorDr. Hollen isAdvanced. Learn about Posterior Fossa Tumor.
- Primitive Neuroectodermal Tumor (PNET)
- Tongue CancerDr. Hollen isAdvanced. Learn about Tongue Cancer.
- Experienced
- Anal CancerDr. Hollen isExperienced. Learn about Anal Cancer.
- AngiosarcomaDr. Hollen isExperienced. Learn about Angiosarcoma.
- AstrocytomaDr. Hollen isExperienced. Learn about Astrocytoma.
- Atypical Teratoid Rhabdoid Tumor (ATRT)Dr. Hollen isExperienced. Learn about Atypical Teratoid Rhabdoid Tumor (ATRT).
- Bone TumorDr. Hollen isExperienced. Learn about Bone Tumor.
- Brain TumorDr. Hollen isExperienced. Learn about Brain Tumor.
- Embryonal Tumor with Multilayered Rosettes
- EpendymomaDr. Hollen isExperienced. Learn about Ependymoma.
- Ewing SarcomaDr. Hollen isExperienced. Learn about Ewing Sarcoma.
- Familial Pancreatic CancerDr. Hollen isExperienced. Learn about Familial Pancreatic Cancer.
- Familial Prostate CancerDr. Hollen isExperienced. Learn about Familial Prostate Cancer.
- GlioblastomaDr. Hollen isExperienced. Learn about Glioblastoma.
- GliomaDr. Hollen isExperienced. Learn about Glioma.
- GliosarcomaDr. Hollen isExperienced. Learn about Gliosarcoma.
- Intraductal PapillomaDr. Hollen isExperienced. Learn about Intraductal Papilloma.
- Laryngeal CancerDr. Hollen isExperienced. Learn about Laryngeal Cancer.
- Lung CancerDr. Hollen isExperienced. Learn about Lung Cancer.
- MelanomaDr. Hollen isExperienced. Learn about Melanoma.
- NeuroepitheliomaDr. Hollen isExperienced. Learn about Neuroepithelioma.
- OligodendrogliomaDr. Hollen isExperienced. Learn about Oligodendroglioma.
- Pancreatic CancerDr. Hollen isExperienced. Learn about Pancreatic Cancer.
- Pediatric Low-Grade Glioma (pLGG)Dr. Hollen isExperienced. Learn about Pediatric Low-Grade Glioma (pLGG).
- Pleuropulmonary BlastomaDr. Hollen isExperienced. Learn about Pleuropulmonary Blastoma.
- Prostate CancerDr. Hollen isExperienced. Learn about Prostate Cancer.
- Relapsed Refractory Multiple Myeloma (RRMM)
- Smoldering Multiple MyelomaDr. Hollen isExperienced. Learn about Smoldering Multiple Myeloma.
- Squamous Cell Carcinoma of the Anal Canal (SCAC)
- Squamous Cell Skin CarcinomaDr. Hollen isExperienced. Learn about Squamous Cell Skin Carcinoma.
- Throat CancerDr. Hollen isExperienced. Learn about Throat Cancer.
View All 29 Experienced Conditions
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