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

Matthew D Armstrong, MD

Individual provider Internal Medicine Physician · NPI 1457363236

Matthew D Armstrong, MD is a Medical Oncology in Tulsa, Oklahoma. Qualified in 2005, 21 years ago. Practices with Saint Francis Hospital, Inc, a 58-clinician group and accepts Medicare assignment. Licensed in Florida, Minnesota and Oklahoma.

Years since qualifying
21
Licensed in
FL, MN, OK
In the registry since
2006
Specialties on file
3
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

11212 E 48th St
Tulsa, OK 74146
Phone: (918) 556-3000
Fax: (918) 556-7066
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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 28451 (OK)
Internal Medicine Physician Taxonomy 207R00000X · Licence 48562 (MN)
Internal Medicine Physician Taxonomy 207R00000X · Licence ME101737 (FL)

Record details

NPI number1457363236
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 12, 2006
Last updated in NPPESApril 13, 2021
Certification dateApril 13, 2021
Mailing address6600 S Yale Ave Ste 1400, Tulsa, OK 74136-3331

Medicare enrollment

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

Medicare specialtyMEDICAL ONCOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2005 (21 years in practice)
Group practice Saint Francis Hospital, Inc. — 58 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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