Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Mr. Lorenz P Kielhorn, MD

Individual provider Addiction Medicine (Family Medicine) Physician · NPI 1891816427

Mr. Lorenz P Kielhorn, MD is an Addiction Medicine (Family Medicine) Physician in Kalamazoo, Michigan. Licensed in Michigan. Registered with an NPI since 2007.

Licensed in
MI
In the registry since
2007
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

401 Howard St
Kalamazoo, MI 49001-2748
Phone: (269) 344-4458
Fax: (269) 344-4459
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Addiction Medicine (Family Medicine) Physician (primary) Taxonomy 207QA0401X · Licence 4301042187 (MI)
Anatomic Pathology & Clinical Pathology Physician Taxonomy 207ZP0102X · Licence 4301042187 (MI)

Record details

NPI number1891816427
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 2, 2007
Last updated in NPPESOctober 14, 2015