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

Individual provider Medical Oncology Physician · NPI 1184695124

Mary Louise Keohan, MD is a Hematology/Oncology in New York, New York. Qualified in 1991, 35 years ago. Practices with Memorial Solid Tumor Group, a 236-clinician group, accepts Medicare assignment and offers telehealth. Licensed in New York.

Years since qualifying
35
Licensed in
NY
In the registry since
2006
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

1275 York Ave
New York, NY 10021-6007
Phone: (212) 639-2000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Medical Oncology Physician (primary) Taxonomy 207RX0202X · Licence 202980 (NY)

Record details

NPI number1184695124
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 29, 2006
Last updated in NPPESFebruary 24, 2015

Medicare enrollment

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

Medicare specialtyHEMATOLOGY/ONCOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1991 (35 years in practice)
Group practice Memorial Solid Tumor Group — 236 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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