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

Bailey Alyss O'Donnell, MD

Individual provider Hospitalist Physician · NPI 1134705536

Bailey Alyss O'Donnell, MD is an Internal Medicine in Cooperstown, New York. Graduated from State University of Ny Upstate Medical University in 2021, 5 years ago. Practices with Mary Imogene Bassett Hospital, a 779-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
5
Trained at
State University of Ny Upstate Medical University
Licensed in
NY
In the registry since
2021
Specialties on file
3
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

1 Atwell Rd
Cooperstown, NY 13326
Phone: (607) 547-3456
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 337913 (NY)
Hospitalist Physician Taxonomy 208M00000X · Licence 337913 (NY)
Pediatrics Physician Taxonomy 208000000X · Licence 337913 (NY)

Record details

NPI number1134705536
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 24, 2021
Last updated in NPPESOctober 13, 2025
Certification dateOctober 13, 2025

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesHOSPITALIST, PEDIATRIC MEDICINE
Medical schoolSTATE UNIVERSITY OF NY UPSTATE MEDICAL UNIVERSITY
Graduated 2021 (5 years in practice)
Group practice Mary Imogene Bassett Hospital — 779 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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