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Dr. Thomas E. Flass, MD
NPI1770639387
- Publications
- 3
- Hospital affiliations
- 1
- Industry payments
- $248
- Medical group
- 1
- Insurance carriers
- 13
- Practice address
- 2601 East Roosevelt Street, Phoenix, AZ 85008
- Practice phone
- Call (602) 344-5011
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Flass' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Thomas E. Flass is a pediatric gastroenterology physician in Phoenix, Arizona
Dr. Flass practices at Valleywise Health Medical Center in Phoenix, Arizona, part of Valleywise Health.
Dr. Flass' NPI, 1770639387, was assigned on January 26, 2007. Dr. Flass graduated from University of Colorado Anschutz Medical Campus in 2006. Dr. Flass holds Montana license 11730.
NPI and contact details
- NPI
- 1770639387NPI Registry (opens in a new tab)
- NPI enumeration date
- January 26, 2007
- NPI status
- Active
- Practice phone
- (602) 344-5011
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 46
- Medical school graduation
- 2006
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Thomas E. Flass practices at Valleywise Health Medical Center in Phoenix, Arizona
Dr. Flass' primary practice is Valleywise Health Medical Center, at 2601 East Roosevelt Street, Phoenix, AZ 85008 in Maricopa County. The practice phone is (602) 344-5011.
- Valleywise Health Medical Center2601 East Roosevelt Street, Phoenix, AZ 85008 · Maricopa CountyPhone(602) 344-5011
Source: Dmand AI Affiliation Data
Dr. Thomas E. Flass is affiliated with 3 sites of care and 1 medical group
Dr. Flass' primary practice is Valleywise Health Medical Center in Phoenix, Arizona, part of Valleywise Health. The medical group on file is District Medical Group. Dmand AI also links Dr. Flass to 1 more dialysis center and 1 physician office, each named with a free account.
District Medical Group1 dialysis centerName with a free account1 physician officeName with a free account
See all 4 affiliations for Dr. FlassSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Thomas E. Flass' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Flass practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Valleywise Health Medical Center | Available with a free account |
| +2 more affiliated sites | 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. Flass practices
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Dr. Thomas E. Flass is one of 41 pediatric gastroenterology physicians in Arizona
Pediatric gastroenterology is Dr. Flass' primary specialty in the NPI Registry, under taxonomy code 2080P0206X. Dr. Flass is board certified in pediatric gastroenterology by the American Board of Pediatrics. Dmand AI has Dr. Flass' licenses on file in 6 states: Montana, Washington, Idaho, Colorado, Oregon and Wyoming.
Specialties and state licenses
- Pediatric gastroenterology, MontanaPrimary
- Washington license
- Idaho license
- Colorado license
- Oregon license
- Wyoming license
Pediatric gastroenterology physicians near Dr. Flass
Counts of pediatric gastroenterology physicians with a Dmand AI profile, by place and practice. Each opens the list.
41pediatric gastroenterology physicians in Arizona28pediatric gastroenterology physicians in Phoenix2pediatric gastroenterology physicians at Valleywise Health Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Thomas E. Flass' patients have a median age of 14
Across all payers, Dmand AI patient panel data puts Dr. Flass' median patient age at 14, with 50% women.
Dr. Flass' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 14
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
Dr. Thomas E. Flass has 3 publications on record
Dmand AI links 3 papers to Dr. Flass in 2015. Dr. Flass' most frequent co-authors are Frank Accurso, MD, Edward J. Hoffenberg, MD and Michael R. Narkewicz, MD.
Papers3
Dr. Flass' most frequent co-authors
- Frank Accurso, MD1 shared paper
- Edward J. Hoffenberg, MD1 shared paper
- Michael R. Narkewicz, MD1 shared paper
Recent publications by Dr. Flass
See who Dr. Flass researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Flass works with, so you can find a warm path to the right pediatric gastroenterology physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Thomas E. Flass received $248 in industry payments from 2016 to 2024
CMS Open Payments shows 13 general payments to Dr. Flass from 9 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 91% of the total. Covidien LP paid the most, $40.
General payments to Dr. Flass by program year, 2016 to 2024
General payments to Dr. Flass by kind, 2016 to 2024
$248in total
- Food and beverage$22691%
- Education$229%
Companies that paid Dr. Flass the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Thomas E. Flass graduated from University of Colorado Anschutz Medical Campus
Dr. Flass graduated from University of Colorado Anschutz Medical Campus in 2006. Dr. Flass is a member of NASPGHAN.
- Medical school
- Board certified in pediatric gastroenterology
- Board certified in pediatrics
Source: Dmand AI Professional Profile Data
Dr. Thomas E. Flass accepts plans from 13 insurance carriers
Dr. Flass is in network with 13 carriers, including Aetna, Blue Cross Blue Shield of Michigan and HCSC. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- HCSC
- United Healthcare
- Elevance
- Alliant Health Plans
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- +5 more carriersWith a free account
Plan types Dr. Flass accepts, by number of carriers
- PPO11
- HMO6
- Medicare6
- EPO4
- POS4
Source: Dmand AI Insurance Network Data
Sources for Dr. Thomas E. Flass'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 |
| 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. Thomas E. Flass
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. Thomas E. Flass' NPI number?
Dr. Thomas E. Flass' NPI number is 1770639387. It was assigned on January 26, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Thomas E. Flass?
Dr. Thomas E. Flass is a pediatric gastroenterology physician in Phoenix, Arizona. The primary specialty in the NPI Registry is Pediatric Gastroenterology Physician (taxonomy code 2080P0206X).
Where does Dr. Thomas E. Flass practice?
Dr. Flass practices at 2601 East Roosevelt Street, Phoenix, AZ 85008. Dr. Flass' primary practice is Valleywise Health Medical Center in Phoenix, Arizona, part of Valleywise Health. Dmand AI also links Dr. Flass to 1 dialysis center and 1 physician office.
What is Dr. Thomas E. Flass' office phone number?
The practice phone on file for Dr. Flass is (602) 344-5011.
What is Dr. Thomas E. Flass' medical license number?
Dr. Flass holds Montana license 11730, one of the licenses on file in 6 states.
Which states has Dr. Thomas E. Flass been licensed in?
Dmand AI has state licenses on file for Dr. Flass in Montana (2008 to 2026), Washington (2024 to 2027), Idaho (2024 to 2026), Colorado (2024 to 2025), Oregon (2025) and Wyoming (2011 to 2015).
Which hospitals is Dr. Thomas E. Flass affiliated with?
Dr. Flass practices at Valleywise Health Medical Center in Phoenix, Arizona.
What medical group is Dr. Thomas E. Flass part of?
Dr. Flass is linked to District Medical Group.
Is Dr. Thomas E. Flass board certified?
Yes. Dr. Flass is board certified in pediatric gastroenterology by the American Board of Pediatrics.
Where did Dr. Thomas E. Flass go to medical school?
Dr. Flass graduated from University of Colorado Anschutz Medical Campus in 2006.
Show 5 more questionsShow fewer questions
Has Dr. Thomas E. Flass received payments from drug or device companies?
CMS Open Payments shows $248 in general payments to Dr. Flass from 9 companies from 2016 to 2024. The largest total came from Covidien LP.
How long has Dr. Thomas E. Flass been practicing?
Dr. Flass graduated from medical school in 2006, 20 years ago.
Does Dr. Thomas E. Flass do research?
Dmand AI links 3 publications to Dr. Flass.
Who does Dr. Thomas E. Flass publish with?
Dr. Flass' most frequent co-authors are Frank Accurso, MD (1 shared paper), Edward J. Hoffenberg, MD (1 shared paper) and Michael R. Narkewicz, MD (1 shared paper).
What insurance does Dr. Thomas E. Flass accept?
Dr. Flass is in network with 13 carriers, including Aetna, Blue Cross Blue Shield of Michigan and HCSC. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.
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