Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

KARL EDWARD HAMMERMEISTER M.D.
NPI 1194909390
Internal Medicine - Cardiovascular Disease in Denver, CO

Q: What is Karl Hammermeister's NPI number?

The NPI number for Karl Hammermeister is 1194909390. It was assigned to this individual provider in the NPPES registry on December 24, 2007.

Q: What is Karl Hammermeister's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Active since December 24, 2007

3000 EAST CEDAR, #4 POLO PLACE, DENVER, CO 80209(303) 778-8014 Get Directions Write a Review

NPPES record last updated: August 2, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Karl Edward Hammermeister M.d. NPPES

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

KARL EDWARD HAMMERMEISTER M.D. (NPI 1194909390) is an individual cardiovascular disease provider in Denver, Colorado, licensed in Colorado (25783) and active in the NPI registry since December 2007.

NPPES Registry Identity

NPI1194909390

Entity TypeIndividualMale

Primary Taxonomy207RC0000X

Provider Legal NameKARL EDWARD HAMMERMEISTERCredential: M.D.

Location Address3000 EAST CEDAR, #4 POLO PLACEDenver, CO 80209

Mailing Address3000 East Cedar, #4 Polo PlaceDenver, CO 80209 · (303) 778-8014

Phone(303) 778-8014

Sole ProprietorYes

Enumeration DateDecember 24, 2007

Last NPPES UpdateAugust 2, 2026

✔ NPI 1194909390 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RC0000X

License✔ Licensed in CO · 25783

Definition

An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.

3000 EAST CEDAR, Denver, CO 80209

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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 Karl Hammermeister's NPI number?

The NPI number for Karl Hammermeister is 1194909390. It was assigned to this individual provider in the NPPES registry on December 24, 2007.

Where is Karl Hammermeister located?

Karl Hammermeister practices at 3000 East Cedar #4 Polo Place, Denver, CO 80209. The listed phone number is (303) 778-8014.

What is Karl Hammermeister's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

When was this NPI record last updated?

The NPPES record for Karl Hammermeister was last updated on August 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 days 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.