DR. JOHN R. M. DAY M.D.
NPI 1497974182
Preventive Medicine - Public Health & General Preventive Medicine in Boulder, CO

Q: What is John Day's NPI number?

The NPI number for John Day is 1497974182. It was assigned to this individual provider in the NPPES registry on April 24, 2007.

Q: What is John Day's specialty?

The primary specialty registered for this NPI is Preventive Medicine, specializing in Public Health & General Preventive Medicine, with taxonomy code 2083P0901X.

Q: When was this NPI record last updated?

The NPPES record for John Day was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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 April 24, 2007

3835 NORWOOD CT, BOULDER, CO 80304(303) 449-0737(303) 447-1308 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

On this page

About Dr. John R. M. Day M.d. NPPES

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

DR. JOHN R. M. DAY M.D. (NPI 1497974182) is an individual public health & general preventive medicine provider in Boulder, Colorado, licensed in Colorado (24195) and active in the NPI registry since April 2007.

NPPES Registry Identity

NPI1497974182

Entity TypeIndividualMale

Primary Taxonomy2083P0901X

Provider Legal NameDR. JOHN R. M. DAYCredential: M.D.

Location Address3835 NORWOOD CTBoulder, CO 80304-1345

Mailing Address3835 Norwood CtBoulder, CO 80304-1345 · (303) 449-0737 · Fax (303) 447-1308

Phone(303) 449-0737

Fax(303) 447-1308

Sole ProprietorYes

Enumeration DateApril 24, 2007

Last NPPES UpdateJuly 8, 2007

✔ NPI 1497974182 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPreventive Medicine · Public Health & General Preventive MedicineAllopathic & Osteopathic Physicians

Taxonomy Code2083P0901X

License✔ Licensed in CO · 24195

Definition

Public health and general preventive medicine focuses on promoting health, preventing disease, and managing the health of communities and defined populations. These practitioners combine population-based public health skills with knowledge of primary, secondary, and tertiary prevention-oriented clinical practice in a wide variety of settings.

3835 NORWOOD CT, Boulder, CO 80304

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Other Identifiers 1

Medicare UPIND24405CO

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 Day's NPI number?

The NPI number for John Day is 1497974182. It was assigned to this individual provider in the NPPES registry on April 24, 2007.

Where is John Day located?

John Day practices at 3835 Norwood Ct, Boulder, CO 80304. The listed phone number is (303) 449-0737.

What is John Day's specialty?

The primary specialty registered for this NPI is Preventive Medicine, specializing in Public Health & General Preventive Medicine, with taxonomy code 2083P0901X.

When was this NPI record last updated?

The NPPES record for John Day was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.