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

Katlin Wieselthier, DO

Individual provider Internal Medicine Physician · NPI 1922851450

Katlin Wieselthier, DO is an Internal Medicine Physician in Colton, California. Licensed in California. Registered with an NPI since 2024.

Licensed in
CA
In the registry since
2024
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

400 N Pepper Ave
Colton, CA 92324-1819
Phone: (909) 580-1000
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 5113 (CA)

Record details

NPI number1922851450
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedApril 5, 2024
Last updated in NPPESJuly 24, 2026
Certification dateJuly 24, 2026
Mailing address400 N Pepper Ave, Colton, CA 92324-1819

Other providers in Colton