Dr. John Gregory Fitz, MD
- Industry payments
- $3,125
- Insurance carriers
- 20
- State licenses
- 4
- Year NPI issued
- 2006
- Practice address
- 5200 Harry Hines Blvd, Dallas, TX 75235
- Practice phone
- Call (214) 645-8600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Fitz's 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. John Gregory Fitz is a gastroenterologist in Dallas, Texas
Dr. Fitz practices in Dallas, Texas.
Dr. Fitz's NPI, 1124087259, was assigned on March 18, 2006. Dr. Fitz graduated from Duke University School Of Medicine in 1979. Dr. Fitz holds Texas license M1418.
- NPI
- 1124087259NPI Registry (opens in a new tab)
- NPI enumeration date
- March 18, 2006
- NPI status
- Active
- Practice phone
- (214) 645-8600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1979
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. John Gregory Fitz's practice address is in Dallas, Texas
Dr. Fitz's practice address in the NPI Registry is 5200 Harry Hines Blvd, Dallas, TX 75235, in Dallas County. The practice phone is (214) 645-8600.
- NPI Registry address5200 Harry Hines Blvd, Dallas, TX 75235 · Dallas CountyPhone(214) 645-8600
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. John Gregory Fitz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Fitz practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Fitz's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Gregory Fitz is one of 1,341 gastroenterologists in Texas
Gastroenterology is Dr. Fitz's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Fitz is board certified in gastroenterology by the American Board of Internal Medicine. Dmand AI has Dr. Fitz's licenses on file in 4 states: Texas, California, Colorado and North Carolina.
Specialties and state licenses
- Gastroenterology, TexasPrimary
- California license
- Colorado license
- North Carolina license
Gastroenterologists near Dr. Fitz
Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. John Gregory Fitz received $3,125 in industry payments from 2016 to 2019
CMS Open Payments shows 4 general payments to Dr. Fitz from 1 drug or device company from 2016 to 2019. Consulting fees make up the largest share, 100% of the total. GlaxoSmithKline, LLC. paid the most, $3,125. It also lists 17 research payments totaling $25,122 from 2022 to 2025, naming 2 clinical trials.
General payments to Dr. Fitz by program year, 2016 to 2019
Companies that paid Dr. Fitz the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Gregory Fitz graduated from Duke University School Of Medicine
Dr. Fitz graduated from Duke University School Of Medicine in 1979.
- Medical school
- Board certified in gastroenterology
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. John Gregory Fitz accepts plans from 20 insurance carriers
Dr. Fitz is in network with 20 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. HMO plans come from the most carriers, 13. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Cigna
- Elevance
- HCSC
- Humana
- Alliant Health Plans
- +12 more carriersWith a free account
Plan types Dr. Fitz accepts, by number of carriers
- HMO13
- PPO12
- Medicare8
- POS5
- EPO4
Source: Dmand AI Insurance Network Data
Sources for Dr. John Gregory Fitz'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| 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. John Gregory Fitz
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. John Gregory Fitz's NPI number?
Dr. John Gregory Fitz's NPI number is 1124087259. It was assigned on March 18, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John Gregory Fitz?
Dr. John Gregory Fitz is a gastroenterologist in Dallas, Texas. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. John Gregory Fitz practice?
Dr. Fitz practices at 5200 Harry Hines Blvd, Dallas, TX 75235.
What is Dr. John Gregory Fitz's office phone number?
The practice phone on file for Dr. Fitz is (214) 645-8600.
What is Dr. John Gregory Fitz's medical license number?
Dr. Fitz holds Texas license M1418, one of the licenses on file in 4 states.
Which states has Dr. John Gregory Fitz been licensed in?
Dmand AI has state licenses on file for Dr. Fitz in Texas (2005 to 2026), California (since 1980), Colorado (1996 to 2021) and North Carolina (1986 to 2014).
Is Dr. John Gregory Fitz board certified?
Yes. Dr. Fitz is board certified in gastroenterology by the American Board of Internal Medicine.
Where did Dr. John Gregory Fitz go to medical school?
Dr. Fitz graduated from Duke University School Of Medicine in 1979.
Has Dr. John Gregory Fitz received payments from drug or device companies?
CMS Open Payments shows $3,125 in general payments to Dr. Fitz from 1 company from 2016 to 2019. The largest total came from GlaxoSmithKline, LLC.
How long has Dr. John Gregory Fitz been practicing?
Dr. Fitz graduated from medical school in 1979, 47 years ago.
What insurance does Dr. John Gregory Fitz accept?
Dr. Fitz is in network with 20 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. HMO plans come from the most carriers, 13. Check the plan with the practice before a visit.
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