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

Dr. Mark Roger Olsen, MD

Individual provider Hematology & Oncology Physician · NPI 1356382592

Dr. Mark Roger Olsen, MD is a Medical Oncology in Tulsa, Oklahoma. Graduated from University of Wisconsin School of Medicine in 1992, 34 years ago. Practices with Oklahoma Cancer Specialists and Research Institute, LLC, a 48-clinician group and accepts Medicare assignment. Licensed in Oklahoma.

Years since qualifying
34
Trained at
University of Wisconsin School of Medicine
Licensed in
OK
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

12697 E 51st St
Tulsa, OK 74146-6236
Phone: (918) 505-3200
Fax: (918) 505-3253
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 20723 (OK)

Record details

NPI number1356382592
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 9, 2006
Last updated in NPPESMay 8, 2014
Mailing address12697 E 51st St, Tulsa, OK 74146-6236

Medicare enrollment

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

Medicare specialtyMEDICAL ONCOLOGY
Also practisesHEMATOLOGY
Medical schoolUNIVERSITY OF WISCONSIN SCHOOL OF MEDICINE
Graduated 1992 (34 years in practice)
Group practice Oklahoma Cancer Specialists And Research Institute, Llc — 48 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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