DR. HARTMUT KOELSCH MD - NPI 1881699551 - Internal Medicine in Longmont, CO

Q: What is Hartmut Koelsch's NPI number?

The NPI number for Hartmut Koelsch is 1881699551. It was assigned to this individual provider in the NPPES registry on June 17, 2005.

Q: What is Hartmut Koelsch's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Hartmut Koelsch was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 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.

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About Dr. Hartmut Koelsch Md NPPES

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

DR. HARTMUT KOELSCH MD (NPI 1881699551) is an individual internal medicine provider in Longmont, Colorado, licensed in Colorado (21911) and active in the NPI registry since June 2005.

NPPES Registry Identity

NPI1881699551

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameDR. HARTMUT KOELSCHCredential: MD

Location Address1925 W MOUNTAIN VIEW AVELongmont, CO 80501-3128

Mailing Address1925 W Mountain View AveLongmont, CO 80501-3128 · (303) 776-1234 · Fax (720) 494-3107

Phone(303) 776-1234

Fax(720) 494-3107

Sole ProprietorNo

Enumeration DateJune 17, 2005

Last NPPES UpdateJuly 13, 2026

✔ NPI 1881699551 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in CO · 21911

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

1925 W MOUNTAIN VIEW AVE, Longmont, CO 80501

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Other Identifiers 1

Medicaid01219112CO

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. LYLE M PFEIFER MD

Family Medicine