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

Individual provider Internal Medicine Physician · NPI 1982616991

Katherine Seibert, MD is a Medical Oncology in Monticello, New York. Graduated from Creighton University School of Medicine in 1976, 50 years ago. Practices with Sun River Health Inc, a 242-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
50
Trained at
Creighton University School of Medicine
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

23 Lakewood Ave Hudson River Healthcare
Monticello, NY 12701
Phone: (845) 794-2010
Fax: (845) 794-4569
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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 133006 (NY)

Record details

NPI number1982616991
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 12, 2006
Last updated in NPPESDecember 20, 2011
Mailing address1037 Main St, Hudson River Healthcare, Peekskill, NY 10566-2913

Medicare enrollment

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

Medicare specialtyMEDICAL ONCOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolCREIGHTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 1976 (50 years in practice)
Group practice Sun River Health Inc. — 242 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Monticello