JOHN MOORE MERRILL M.D.
NPI 1801237276
Internal Medicine - Medical Oncology in Hayden, CO

Q: What is John Merrill's NPI number?

The NPI number for John Merrill is 1801237276. It was assigned to this individual provider in the NPPES registry on July 12, 2013.

Q: What is John Merrill's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

Q: When was this NPI record last updated?

The NPPES record for John Merrill was last updated on July 12, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since July 12, 2013

40515 COUNTY ROAD 69A, SUITE B, HAYDEN, CO 81639(970) 276-1933 Get Directions Write a Review

NPPES record last updated: July 12, 2013. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About John Moore Merrill M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOHN MOORE MERRILL M.D. (NPI 1801237276) is an individual medical oncology provider in Hayden, Colorado, licensed in Colorado (DR 0038411) and active in the NPI registry since July 2013.

NPPES Registry Identity

NPI1801237276

Entity TypeIndividualMale

Primary Taxonomy207RX0202X

Provider Legal NameJOHN MOORE MERRILLCredential: M.D.

Location Address40515 COUNTY ROAD 69A, SUITE BHayden, CO 81639-9504

Mailing Address40515 County Road 69a, Suite BHayden, CO 81639-9504 · (970) 276-1933

Phone(970) 276-1933

Sole ProprietorYes

Enumeration DateJuly 12, 2013

✔ NPI 1801237276 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Medical OncologyAllopathic & Osteopathic Physicians

Taxonomy Code207RX0202X

License✔ Licensed in CO · DR 0038411

Definition

An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.

40515 COUNTY ROAD 69A, Hayden, CO 81639

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Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Merrill's NPI number?

The NPI number for John Merrill is 1801237276. It was assigned to this individual provider in the NPPES registry on July 12, 2013.

Where is John Merrill located?

John Merrill practices at 40515 County Road 69A Suite B, Hayden, CO 81639. The listed phone number is (970) 276-1933.

What is John Merrill's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

When was this NPI record last updated?

The NPPES record for John Merrill was last updated on July 12, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.