Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

John Nathan Allan, MD

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1144462441

John Nathan Allan, MD is a Medical Oncology in New York, New York. Graduated from Saint Louis University School of Medicine in 2009, 17 years ago. Practices with Weill Medical College of Cornell, a 2,031-clinician group, accepts Medicare assignment and offers telehealth. Licensed in New York.

Years since qualifying
17
Trained at
Saint Louis University School of Medicine
Licensed in
NY
In the registry since
2009
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

Student / training record This NPI belongs to someone enrolled in a health care training programme. It carries no licence and no practice of its own, so no address or phone number is published for it.

New York, NY

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 264134 (NY)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1144462441
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 1, 2009
Last updated in NPPESApril 17, 2015

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyMEDICAL ONCOLOGY
Also practisesHEMATOLOGY
Medical schoolSAINT LOUIS UNIVERSITY SCHOOL OF MEDICINE
Graduated 2009 (17 years in practice)
Group practice Weill Medical College Of Cornell — 2031 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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