DR. JACK A KLAPPER MD
NPI 1871936278
Specialist - Research Study in Denver, CO

Q: What is Jack Klapper's NPI number?

The NPI number for Jack Klapper is 1871936278. It was assigned to this individual provider in the NPPES registry on April 16, 2013.

Q: What is Jack Klapper's specialty?

The primary specialty registered for this NPI is Specialist, specializing in Research Study, with taxonomy code 1744R1102X.

Q: When was this NPI record last updated?

The NPPES record for Jack Klapper was last updated on April 16, 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 April 16, 2013

1155 E 18TH AVE, DENVER, CO 80218(303) 839-9900(303) 839-5430 Get Directions Write a Review

NPPES record last updated: April 16, 2013. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Dr. Jack A Klapper Md NPPES

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

DR. JACK A KLAPPER MD (NPI 1871936278) is an individual research study provider in Denver, Colorado, licensed in Colorado (14853) and active in the NPI registry since April 2013.

NPPES Registry Identity

NPI1871936278

Entity TypeIndividualMale

Primary Taxonomy1744R1102X

Provider Legal NameDR. JACK A KLAPPERCredential: MD

Location Address1155 E 18TH AVEDenver, CO 80218-1110

Mailing Address1155 E 18th AveDenver, CO 80218-1110 · (303) 839-9900 · Fax (303) 839-5430

Phone(303) 839-9900

Fax(303) 839-5430

Sole ProprietorYes

Enumeration DateApril 16, 2013

✔ NPI 1871936278 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySpecialist · Research StudyOther Service Providers

Taxonomy Code1744R1102X

License✔ Licensed in CO · 14853

Also ListedSpecialistTaxonomy 174400000X · License 14853 (CO)

1155 E 18TH AVE, Denver, CO 80218

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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 Jack Klapper's NPI number?

The NPI number for Jack Klapper is 1871936278. It was assigned to this individual provider in the NPPES registry on April 16, 2013.

Where is Jack Klapper located?

Jack Klapper practices at 1155 E 18th Ave, Denver, CO 80218. The listed phone number is (303) 839-9900.

What is Jack Klapper's specialty?

The primary specialty registered for this NPI is Specialist, specializing in Research Study, with taxonomy code 1744R1102X.

When was this NPI record last updated?

The NPPES record for Jack Klapper was last updated on April 16, 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.