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

Individual provider Emergency Medicine Physician · NPI 1073554531

Robert Sexton Kollen, MD is an Emergency Medicine in Colton, California. Graduated from University of Minnesota Medical School in 1969, 57 years ago. Practices with American Specialty Physicians Group Inc, a 92-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
57
Trained at
University of Minnesota Medical School
Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

400 N Pepper Ave
Colton, CA 92324
Phone: (909) 580-1400
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence C33600 (CA)

Record details

NPI number1073554531
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 8, 2006
Last updated in NPPESJuly 13, 2026
Mailing address2100 Powell Street, Ste 920, Emeryville, CA 94608-1803

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyEMERGENCY MEDICINE
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF MINNESOTA MEDICAL SCHOOL
Graduated 1969 (57 years in practice)
Group practice American Specialty Physicians Group Inc — 92 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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