NPPES file of Aug 9, 2026

Mark Roger Olsen, M.D.

Hematology & Oncology Physician · Tulsa, OK

Mark Roger Olsen, M.D. is a hematology & oncology physician with a practice address in Tulsa, Oklahoma, and NPI 1356382592, issued on Jun 9, 2006. Check the license (Oklahoma 20723, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1356382592
Name
Mark Roger Olsen
Credential
M.D.
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
20723 OK
Self-reported in NPPES; status is on the state search
Practice location
12697 E 51St St, Tulsa, OK 74146
Phone
(918) 505-3200
Enumerated
Jun 9, 2006
Record last updated
May 8, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(918) 505-3253
Medicare enrollment
Enrolled (PECOS I20091203000269); accepts Medicare assignment
Medical or professional school
University Of Wisconsin School Of Medicine, 1992
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 12697 E 51St St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Stephanie Adame, APRNFamily Nurse Practitioner1003402918
  2. Linda Andrus, PTPhysical Therapist1104492651
  3. Basil BakirHematology & Oncology Physician1932765088
  4. Grace Ballew, RD, LDRegistered Dietitian1346790300
  5. Kelly Berry, PT, MPHPhysical Therapist1144896804
  6. Lisa Bloxham, APRN-CNPFamily Nurse Practitioner1366904740

Verify Mark Roger Olsen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOklahoma Board of Medical Licensure and Supervision
    Search for license 20723
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Oklahoma license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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20% more Medicare Part D claims than the average hematology & oncology physician in 2024

1,054 Medicare Part D claims for 199 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims. 135 claims were for opioids.

  1. Mark Olsen1,054
  2. Specialty average877

Most prescribed

  1. Hydroxyurea70 claims
  2. Prednisone60 claims
  3. Ondansetron Odt58 claims
  4. Hydrocodone-Acetaminophen52 claims
  5. Dexamethasone51 claims
  6. Letrozole48 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 84 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score93.3
  2. Costout of 100 · 30%49.2
  3. Promoting interoperabilityout of 100 · 25%99.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $543.63

28 payments; by number, the most common kind was food and beverage; the largest payer was Daiichi Sankyo Inc. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mark Olsen$543.63
  2. Specialty average$7,481.41

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Oklahoma Cancer Specialists And Research Institute, LLCTulsa, OK

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Mark Roger Olsen among 128 hematology & oncology physician records in Oklahoma

Mark Roger Olsen, M.D. is one of 128 hematology & oncology physician records with a practice address in Oklahoma. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 52% newer
  • In a Medicare fileYes · 90% of these records are
  • In the CMS Doctors and Clinicians fileYes · 76% of these records are
  • Graduated1992 · median 2004 among the 97 with a school on file
  • Record last updated2014 · 65% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in Oklahoma

There are 128 hematology & oncology physician records in Oklahoma.

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Matthew Armstrong, MDTulsa, OK 741461457363236
  2. Vicki Baker, M.D.Tulsa, OK 741461669414876
  3. Steven Buck, D.O.Tulsa, OK 741461154373835
  4. Scott Cole, MDTulsa, OK 741461346351004
  5. John Eckenrode, M.D.Tulsa, OK 741461093782245
  6. Alan Keller, M.D.Tulsa, OK 741461386696011
  7. Jihad Khattab, MDTulsa, OK 741461730126111
  8. Joseph Moore, MDTulsa, OK 741461467495960

Common questions

What is Mark Roger Olsen, M.D.'s NPI number?

Mark Roger Olsen, M.D.'s National Provider Identifier (NPI) is 1356382592, issued on Jun 9, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark Roger Olsen, M.D. located?

The NPPES record lists a practice address at 12697 E 51St St, Tulsa, OK, 74146. Phone: (918) 505-3200. Providers update this record themselves, so call before visiting.

How can I verify Mark Roger Olsen, M.D.'s license?

NPPES lists Oklahoma license number 20723, as entered by the provider. Search the Oklahoma Board of Medical Licensure and Supervision at https://www.okmedicalboard.org/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Mark Roger Olsen, M.D. prescribe under Medicare Part D?

In 2024, Mark Roger Olsen, M.D. had 1,054 Medicare Part D claims for 199 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.

What is Mark Roger Olsen, M.D.'s MIPS final score?

The 2023 MIPS final score is 84 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.