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

John Moore Merrill, MD

Individual provider Medical Oncology Physician · NPI 1801237276

John Moore Merrill, MD is a Medical Oncology Physician in Hayden, Colorado. Practices as a sole proprietor. Licensed in Colorado.

Licensed in
CO
In the registry since
2013
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

40515 County Road 69A Ste B
Hayden, CO 81639-9504
Phone: (970) 276-1933
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Medical Oncology Physician (primary) Taxonomy 207RX0202X · Licence DR 0038411 (CO)

Record details

NPI number1801237276
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 12, 2013
Last updated in NPPESJuly 12, 2013
Mailing address40515 County Road 69a, Suite B, Hayden, CO 81639-9504