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Free and exclusively for verified U.S. health care providers

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One-on-one input from subspecialists, because even the experts have questions

We connect providers like you with oncology subspecialists, so you can ask questions at no cost and make better-informed treatment decisions.

Profiles of five medical oncology and hematology specialists with their names, photos, affiliations, and focus areas

Instant access to top subspecialists

→ Browse by cancer type and connect instantly.

Whether you're facing a nuanced induction decision or weighing therapy sequences, you can quickly connect with national experts who live and breathe that disease. No referrals. No wait times.

Search interface showing specialist matching by cancer type with highlighted doctors

Medical inquiry conversation about a 93-year-old with metastatic colon cancer discussing treatment options

Expert insights, not crowd opinions

→ Every response comes from a vetted subspecialist.

Every response comes from a vetted academic subspecialist actively practicing at leading institutions. No anonymous threads. Just direct, one-to-one input from someone who specializes in exactly what you need.

Medical inquiry conversation about treatment options

On the go or at your desk

→ Access via mobile or desktop, wherever decisions happen.

Clinical decisions don't wait for office hours. With Primum, you can draft an inquiry between patients, upload imaging from clinic, or review expert responses on the go.

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Over 100+ sub-specialists, covering 90% of cancer types.

Select a Cancer Type to see Primum subspecialists in that area.

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Yazan Abou-Ismail

Focus Area: Heme

Faiz Anwer

Focus Area: MM

Shirin Attarian

Focus Area: H&N, Non-Melanoma

Sonikpreet Aulakh

Focus Area: Neuro-Oncology

Jacques Azzi

Focus Area: NHL, AML, CLL, ALL, DLBCL

John Baird

Focus Area: NHL, DLBCL

Rahul Banerjee

Focus Area: MM

Pedro Barata

Focus Area: GU

Arnab Basu

Focus Area: GU

Sushil Beriwal

Focus Area: GU, Breast, GYN

Allison Bock

Focus Area: NHL, CLL, DLBCL, HL

Sosipatros Boikos

Focus Area: Endocrine, Rare

Andrew Branagan

Focus Area: WM, MM

Adam Brufsky

Focus Area: Breast

Elizabeth Buchbinder

Focus Area: Melanoma

David Carbone

Focus Area: Lung

Jimmy Caudell

Focus Area: H&N

Hua-Jay "Jeff" Cherng

Focus Area: NHL, DLBCL, HL

Toni Choueiri

Focus Area: GU

Stacey Cohen

Focus Area: CRC

Casey Cosgrove

Focus Area: GYN

Emily Curran

Focus Area: ALL

Sourat Darabi

Focus Area: Genomics

Lukas Delasos

Focus Area: Lung

Benjamin Derman

Focus Area: MM

James C Dickerson

Focus Area: Breast

Danai Dima

Focus Area: MM

Salman Fazal

Focus Area: MPN, MDS, AML, CML

Jonathan Feld

Focus Area: MDS, AML

Eduardo Fernandez Hernandez

Focus Area: NHL, MM, HL

Xin Gao

Focus Area: GU

Ben Garmezy

Focus Area: GU

Jessica Geiger

Focus Area: H&N, Non-Melanoma

Joseph Glaser

Focus Area: GU, GI

Vishnukamal Golla

Focus Area: GU

Lisa Hamilton

Focus Area: Breast

Dwight E. Heron

Focus Area: Lung

Thatcher Heumann

Focus Area: GI, Hepatobiliary, Pancreas

Louis Jacques

Focus Area: Lung

Nusrat Jahan

Focus Area: Breast

Martin Johnston

Focus Area: PED - Onc, PED - Heme

Shruti Jolly

Focus Area: Lung, GYN, Endocrine, Esophagus

Virginia Kaklamani

Focus Area: Breast

Suneel Kamath

Focus Area: GI, Esophagus, Hepatobiliary, CRC

Ali Khaki

Focus Area: GU

Rafiullah Khan

Focus Area: MM

Sandeep J. Khandhar

Focus Area: Lung

Goetz Kloecker

Focus Area: Lung

John Kresl

Focus Area: GU, Lung, Breast, CNS

Matthew Kurian

Focus Area: Breast

Andrew Kuykendall

Focus Area: MPN, MDS

Hugo Lara-Martinez

Focus Area: Heme

Christopher Lemmon

Focus Area: Lung, H&N

Hannah Levavi

Focus Area: ALL

Nerea Lopetegui-Lia

Focus Area: Breast

Emil Lou

Focus Area: CRC, GI, Hepatobiliary, Pancreas, Esophagus, CNS, NeN

Janice Lyons

Focus Area: Breast

Rachel Mador-House

Focus Area: Genomics, Breast

Reshma Mahtani

Focus Area: Breast

James Martin

Focus Area: Heme

Anastasia Martynova

Focus Area: Breast

Manni Mohyuddin

Focus Area: MM

Alberto Montero

Focus Area: Breast

Jason Mouabbi

Focus Area: Breast

Raja Mudad

Focus Area: Lung

Moaath Mustafa Ali

Focus Area: MPN, MDS, AML, CML, ALL

Nellie Nafissi

Focus Area: Breast

Mayur Narkhede

Focus Area: NHL, CLL, DLBCL, HL

Leonard Naymagon

Focus Area: Heme

Kyle Neale

Focus Area: PC

Caspian Oliai

Focus Area: AML, CLL, NHL, MDS, CML

Daniel Olson

Focus Area: Melanoma

Vivek Patel

Focus Area: NHL, DLBCL

Tony Philip

Focus Area: Esophagus

Tycel Phillips

Focus Area: NHL, DLBCL, HL

Javier Pinilla

Focus Area: CLL, CML

Louis Potters

Focus Area: GU

Salman Punekar

Focus Area: Lung

Joshua Richter

Focus Area: MM

Huzaifah Salat

Focus Area: Lung

Joel Saltzman

Focus Area: GI

Lee Schwartzberg

Focus Area: Breast

Nagashree Seetharamu

Focus Area: H&N

Jonah Shulman

Focus Area: NHL, CLL, DLBCL

Alan Skarbnik

Focus Area: CLL, DLBCL

Ruchika Talwar

Focus Area: GU

Bicky Thapa

Focus Area: GU

Thejus Thayyil Jayakrishnan

Focus Area: GI, Esophagus, Hepatobiliary, CRC, Pancreas

Douglas Tremblay

Focus Area: AML

Samuel Urrutia

Focus Area: MDS, AML

Poorva Vaidya

Focus Area: Melanoma, Non-Melanoma

Muthu Veeraputhiran

Focus Area: NHL, AML, CLL, DLBCL

Eric Vick

Focus Area: AML

Benjamin Weinberg

Focus Area: GI, CRC, Pancreas

Basem William

Focus Area: NHL, HL

Jennifer Witt

Focus Area: Breast

Brent Xia

Focus Area: GI, Hepatobiliary, Pancreas

Andrew Yee

Focus Area: MM

Patients are always impressed when I mention I corresponded with an outside expert. It also makes me feel more confident.

— Oncology Provider

I strictly follow the NCCN and ASCO guidelines, yet lymphoma and myeloma still require a lot of judgment. There is a wide range for discretion in therapeutic decision-making and drug selection.

— Oncology Provider

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