AnthracyclinesCancer SurvivorsCardiomyopathies
Dr. Gregory T. Armstrong, MD
NPI1225142102
- Publications
- 549
- Clinical trials
- 2
- Hospital affiliations
- 1
- Industry payments
- $243
- Medical group
- 1
- Practice address
- 262 Danny Thomas Place, Memphis, TN 38105
- Practice phone
- Call (901) 495-3300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Armstrong's professional email, personal email and mobile number
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Dr. Gregory T. Armstrong is a pediatric hematology and oncology physician in Memphis, Tennessee
Dr. Armstrong practices at St. Jude Children's Research Hospital in Memphis, Tennessee, part of St. Jude Childrens Research Hospital.
Dr. Armstrong's NPI, 1225142102, was assigned on August 18, 2006. Dr. Armstrong graduated from Heersink School of Medicine - Birmingham in 1999. Dr. Armstrong holds Tennessee license 41262.
NPI and contact details
- NPI
- 1225142102NPI Registry (opens in a new tab)
- NPI enumeration date
- August 18, 2006
- NPI status
- Active
- Practice phone
- (901) 495-3300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Gregory T. Armstrong practices at St. Jude Children's Research Hospital in Memphis, Tennessee
Dr. Armstrong's primary practice is St. Jude Children's Research Hospital, at 262 Danny Thomas Place, Memphis, TN 38105 in Shelby County. The practice phone is (901) 495-3300.
- St. Jude Children's Research Hospital262 Danny Thomas Place, Memphis, TN 38105 · Shelby CountyPhone(901) 495-3300
Source: Dmand AI Affiliation Data
Dr. Gregory T. Armstrong is affiliated with 1 site of care and 1 medical group
Dr. Armstrong's primary practice is St. Jude Children's Research Hospital in Memphis, Tennessee, part of St. Jude Childrens Research Hospital. The medical group on file is St. Jude Children's Research Hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Gregory T. Armstrong's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Armstrong practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| St. Jude Children's Research Hospital | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every hospital where Dr. Armstrong practices
Dmand AI maps EHR vendors, IT decision makers and buying committees across St. Jude Childrens Research Hospital and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Gregory T. Armstrong is one of 141 pediatric hematologys and oncology physicians in Tennessee
Pediatric hematology-oncology is Dr. Armstrong's primary specialty in the NPI Registry, under taxonomy code 2080P0207X. Dr. Armstrong is board certified in pediatric hematology-oncology by the American Board of Pediatrics. Dmand AI has Dr. Armstrong's licenses on file in 3 states: Tennessee, Alabama and Pennsylvania.
Specialties and state licenses
- Pediatric hematology and oncology, TennesseePrimary
- Alabama license
- Pennsylvania license
Pediatric hematologys and oncology physicians near Dr. Armstrong
Counts of pediatric hematologys and oncology physicians with a Dmand AI profile, by place and practice. Each opens the list.
141pediatric hematologys and oncology physicians in Tennessee100pediatric hematologys and oncology physicians in Memphis85pediatric hematologys and oncology physicians at St. Jude Children's Research Hospital
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Gregory T. Armstrong's patients have a median age of 19
Across all payers, Dmand AI patient panel data puts Dr. Armstrong's median patient age at 19, with 100% women.
Dr. Armstrong's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 19
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Dr. Gregory T. Armstrong has 549 publications on record
Dmand AI links 549 papers to Dr. Armstrong, published from 2006 to 2025. 2020 was the busiest year, with 42. The most frequent topics are Cancer Survivors, Survivors and Neoplasms, Second Primary. Dr. Armstrong has published most often in J Clin Oncol. Dr. Armstrong's most frequent co-authors are Smita Bhatia, MD, Daniel A. Mulrooney, MD and Joseph P. Neglia, MD, MPH.
Papers549
Years published2006 to 2025
Dr. Armstrong's papers by year, 2016 to 2025
Topics Dr. Armstrong writes about most
- Cancer Survivors
- Survivors
- Neoplasms, Second Primary
- Central Nervous System Neoplasms
- Radiotherapy
- Siblings
- Cranial Irradiation
- Genome-Wide Association Study
Dr. Armstrong's most frequent co-authors
- Smita Bhatia, MD66 shared papers
- Daniel A. Mulrooney, MD62 shared papers
- Joseph P. Neglia, MD, MPH60 shared papers
Recent publications by Dr. Armstrong
Cancer SurvivorsCost of IllnessHealth Expenditures
AnthracyclinesBreast NeoplasmsCancer Survivors
See who Dr. Armstrong researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Armstrong works with, so you can find a warm path to the right pediatric hematologys and oncology physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Gregory T. Armstrong has worked on 2 clinical trials
Dmand AI links Dr. Armstrong to 2 clinical trials. 1 is still active or recruiting. Conditions studied include Motor Activity and Behavior.
Conditions in Dr. Armstrong's trials
- Motor Activity
- Behavior
Investigators on the most trials with Dr. Armstrong
- Donald T. Beam, MD1 shared trial
- Daniel Charles Bowers, MD1 shared trial
- Lisa Robin Diller, MD1 shared trial
Recent clinical trials with Dr. Armstrong
Motor ActivityBehavior
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Gregory T. Armstrong received $243 in industry payments from 2016 to 2018
CMS Open Payments shows 2 general payments to Dr. Armstrong from 1 drug or device company from 2016 to 2018. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $243.
General payments to Dr. Armstrong by program year, 2016 to 2018
Companies that paid Dr. Armstrong the most, 2016 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gregory T. Armstrong graduated from Heersink School of Medicine - Birmingham
Dr. Armstrong graduated from Heersink School of Medicine - Birmingham in 1999. Dr. Armstrong is a member of ASCO.
- Medical school
- Board certified in pediatric hematology-oncology
Source: Dmand AI Professional Profile Data
Dr. Gregory T. Armstrong accepts plans from 7 insurance carriers
Dr. Armstrong is in network with 7 carriers, including United Healthcare, Aetna and AR State Medicaid. Medicaid plans come from the most carriers, 5. Check the plan with the practice before a visit.
- United Healthcare
- Aetna
- AR State Medicaid
- GA State Medicaid
- KY State Medicaid
- NY State Medicaid
- WI State Medicaid
Plan types Dr. Armstrong accepts, by number of carriers
- Medicaid5
- HMO2
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Gregory T. Armstrong's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Gregory T. Armstrong
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Gregory T. Armstrong's NPI number?
Dr. Gregory T. Armstrong's NPI number is 1225142102. It was assigned on August 18, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregory T. Armstrong?
Dr. Gregory T. Armstrong is a pediatric hematology and oncology physician in Memphis, Tennessee. The primary specialty in the NPI Registry is Pediatric Hematology & Oncology Physician (taxonomy code 2080P0207X).
Where does Dr. Gregory T. Armstrong practice?
Dr. Armstrong practices at 262 Danny Thomas Place, Memphis, TN 38105. Dr. Armstrong's primary practice is St. Jude Children's Research Hospital in Memphis, Tennessee, part of St. Jude Childrens Research Hospital.
What is Dr. Gregory T. Armstrong's office phone number?
The practice phone on file for Dr. Armstrong is (901) 495-3300.
What is Dr. Gregory T. Armstrong's medical license number?
Dr. Armstrong holds Tennessee license 41262, one of the licenses on file in 3 states.
Which states has Dr. Gregory T. Armstrong been licensed in?
Dmand AI has state licenses on file for Dr. Armstrong in Tennessee (2006 to 2027), Alabama (2007 to 2008) and Pennsylvania (2000 to 2006).
Which hospitals is Dr. Gregory T. Armstrong affiliated with?
Dr. Armstrong practices at St. Jude Children's Research Hospital in Memphis, Tennessee.
What medical group is Dr. Gregory T. Armstrong part of?
Dr. Armstrong is linked to St. Jude Children's Research Hospital.
Is Dr. Gregory T. Armstrong board certified?
Yes. Dr. Armstrong is board certified in pediatric hematology-oncology by the American Board of Pediatrics.
Where did Dr. Gregory T. Armstrong go to medical school?
Dr. Armstrong graduated from Heersink School of Medicine - Birmingham in 1999.
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Has Dr. Gregory T. Armstrong received payments from drug or device companies?
CMS Open Payments shows $243 in general payments to Dr. Armstrong from 1 company from 2016 to 2018. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Gregory T. Armstrong been practicing?
Dr. Armstrong graduated from medical school in 1999, 27 years ago.
Does Dr. Gregory T. Armstrong do research?
Dmand AI links 549 publications to Dr. Armstrong, published from 2006 to 2025. Dr. Armstrong has worked on 2 clinical trials.
Who does Dr. Gregory T. Armstrong publish with?
Dr. Armstrong's most frequent co-authors are Smita Bhatia, MD (66 shared papers), Daniel A. Mulrooney, MD (62 shared papers) and Joseph P. Neglia, MD, MPH (60 shared papers).
What insurance does Dr. Gregory T. Armstrong accept?
Dr. Armstrong is in network with 7 carriers, including United Healthcare, Aetna and AR State Medicaid. Medicaid plans come from the most carriers, 5. Check the plan with the practice before a visit.
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