NPPES file of Aug 9, 2026

Matthew D. Armstrong, MD

Hematology & Oncology Physician · Tulsa, OK

Matthew D. Armstrong, MD is a hematology & oncology physician with a practice address in Tulsa, Oklahoma, and NPI 1457363236, issued on Aug 12, 2006. Check the license (Oklahoma 28451, 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
1457363236
Name
Matthew D. Armstrong
Credential
MD
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License numbers
28451 OK
ME101737 FL
48562 MN
Self-reported in NPPES; status is on the state search
Practice location
11212 E 48TH St, Tulsa, OK 74146
Phone
(918) 556-3000
Enumerated
Aug 12, 2006
Record last updated
Apr 13, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(918) 556-7066
Medicaid IDs
570075000 MN
000255900 FL
Medicare enrollment
Enrolled (PECOS I20111003000251); accepts Medicare assignment
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 11212 E 48TH St

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

  1. Vicki Baker, M.D.Hematology & Oncology Physician1669414876
  2. Christy Beasley, PA CPhysician Assistant1194763607
  3. Jana Chavous, APRN-CNPAcute Care Nurse Practitioner1942729546
  4. John Eckenrode, M.D.Hematology & Oncology Physician1093782245
  5. Paul El TombHematology & Oncology Physician1871089243
  6. Stephanie Harry, D.O.Hematology & Oncology Physician1922494202

Verify Matthew D. Armstrong 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 28451
    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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3.6 times the Medicare Part D claims of the average hematology & oncology physician in 2024

3,151 Medicare Part D claims for 449 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. 325 claims were for opioids.

  1. Matthew Armstrong3,151
  2. Specialty average877

Most prescribed

  1. Anastrozole312 claims
  2. Letrozole219 claims
  3. Prednisone161 claims
  4. Lorazepam159 claims
  5. Ondansetron Odt148 claims
  6. Abiraterone Acetate119 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): 79.4 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 score77.8
  2. Costout of 100 · 30%54.4
  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: $312.91

17 payments; by number, the most common kind was food and beverage; the largest payer was Ferring Pharmaceuticals 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. Matthew Armstrong$312.91
  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 2 group practices

  1. Saint Francis Hospital, Inc.Tulsa, OK
  2. Warren Clinic IncTulsa, OK

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

Matthew D. Armstrong among 128 hematology & oncology physician records in Oklahoma

Matthew D. Armstrong, MD 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
  • Graduated2005 · median 2004 among the 97 with a school on file
  • Record last updated2021 · 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. Vicki Baker, M.D.Tulsa, OK 741461669414876
  2. Steven Buck, D.O.Tulsa, OK 741461154373835
  3. Scott Cole, MDTulsa, OK 741461346351004
  4. John Eckenrode, M.D.Tulsa, OK 741461093782245
  5. Alan Keller, M.D.Tulsa, OK 741461386696011
  6. Jihad Khattab, MDTulsa, OK 741461730126111
  7. Joseph Moore, MDTulsa, OK 741461467495960
  8. Ali Moussa, M.D.Tulsa, OK 741461548207814

Common questions

What is Matthew D. Armstrong, MD's NPI number?

Matthew D. Armstrong, MD's National Provider Identifier (NPI) is 1457363236, issued on Aug 12, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Matthew D. Armstrong, MD located?

The NPPES record lists a practice address at 11212 E 48TH St, Tulsa, OK, 74146. Phone: (918) 556-3000. Providers update this record themselves, so call before visiting.

How can I verify Matthew D. Armstrong, MD's license?

NPPES lists Oklahoma license number 28451, 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 Matthew D. Armstrong, MD prescribe under Medicare Part D?

In 2024, Matthew D. Armstrong, MD had 3,151 Medicare Part D claims for 449 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.

What is Matthew D. Armstrong, MD's MIPS final score?

The 2023 MIPS final score is 79.4 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.