Dr. Martin Gregory Farrell, MD
- Medicare services, 2018
- 1,070
- Part D claims, 2019
- 161
- Industry payments
- $699
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 425 N Highland Ave, Sherman, TX 75092
- Practice phone
- Call (972) 691-3777
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Texas Digestive Disease Consultants
Sherman, Texas
Find Dr. Farrell'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. Martin Gregory Farrell is a gastroenterologist in Sherman, Texas
Dr. Farrell practices at Texas Digestive Disease Consultants in Sherman, Texas.
Dr. Farrell's NPI, 1295814036, was assigned on November 3, 2006. Dr. Farrell holds Texas license G5035.
- NPI
- 1295814036NPI Registry (opens in a new tab)
- NPI enumeration date
- November 3, 2006
- NPI status
- Active
- Practice phone
- (972) 691-3777
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Martin Gregory Farrell practices at Texas Digestive Disease Consultants in Sherman, Texas
Dr. Farrell's primary practice is Texas Digestive Disease Consultants, at 425 N Highland Ave, Sherman, TX 75092 in Grayson County. The practice phone is (972) 691-3777.
- Texas Digestive Disease Consultants425 N Highland Ave, Sherman, TX 75092 · Grayson CountyPhone(972) 691-3777
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Martin Gregory Farrell is affiliated with 2 sites of care and 1 medical group
Dr. Farrell's primary practice is Texas Digestive Disease Consultants in Sherman, Texas. The medical group on file is Texas Digestive Disease Consultants. Dmand AI also links Dr. Farrell to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Martin Gregory Farrell's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Farrell practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Texas Digestive Disease Consultants | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Martin Gregory Farrell is one of 1,341 gastroenterologists in Texas
Gastroenterology is Dr. Farrell's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Farrell is licensed in Texas.
Specialties and state licenses
- Gastroenterology, TexasPrimary
Gastroenterologists near Dr. Farrell
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. Martin Gregory Farrell billed Medicare for 1,070 services in 2018
CMS data shows 1,070 Medicare services from Dr. Farrell across 15 procedure codes in 2018. Medicare paid $83,918 for them.
Dr. Farrell's Medicare services by type, 2017 to 2018
- 2017
- 2018
- Office and hospital visits
- 2017: 6812018: 51524%
- Surgery
- 2017: 5592018: 40028%
- Lab and pathology
- 2017: 1772018: 13524%
- Other services
- 2017: 302018: 2033%
Where Dr. Farrell's Medicare services took place, 2018
- In an office65061%
- In a facility42039%
Dr. Farrell compared with the Texas median for gastroenterologists, 2018
- Dr. Farrell
- Texas median
- Medicare services
- 1,070vs 5052.1 times
- Part D claims
- 161vs 49367% below
Medians across 1,281 gastroenterologists in Texas with Dmand AI profiles that report each measure.
Dr. Farrell's most billed Medicare procedure codes, 2018
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Farrell and other gastroenterologists in Texas.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Martin Gregory Farrell's patients have a median age of 76
Across all payers, Dmand AI patient panel data puts Dr. Farrell's median patient age at 76, with 62% women.
Dr. Farrell's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 76
Patient panel by sex, all payers
- Women62%
- Men38%
Source: Dmand AI Patient Panel Data
Dr. Martin Gregory Farrell wrote 161 Medicare Part D claims in 2019
In 2019, Dr. Farrell wrote 161 Medicare Part D claims. Every claim was for a generic drug. They cover 5 drugs, with $2,322 in total drug cost. In 2018, CMS named 1,440 claims across 22 drugs.
Dr. Farrell's most prescribed drugs by claims, 2019
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2018 to 2019
- 2018
- 2019
- Claims for drugs CMS names
- 2018: 1,4402019: 16189%
Drugs named by CMS: 5 in 2019, 22 in 2018.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Martin Gregory Farrell received $699 in industry payments from 2016 to 2018
CMS Open Payments shows 52 general payments to Dr. Farrell from 11 drug and device companies from 2016 to 2018. Food and beverage make up the largest share, 90% of the total. Janssen Pharmaceuticals, Inc paid the most, $242.
General payments to Dr. Farrell by program year, 2016 to 2018
General payments to Dr. Farrell by kind, 2016 to 2018
- Food and beverage$63090%
- Education$6910%
Companies that paid Dr. Farrell the most, 2016 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Martin Gregory Farrell'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 |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Martin Gregory Farrell
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. Martin Gregory Farrell's NPI number?
Dr. Martin Gregory Farrell's NPI number is 1295814036. It was assigned on November 3, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Martin Gregory Farrell?
Dr. Martin Gregory Farrell is a gastroenterologist in Sherman, Texas. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Martin Gregory Farrell practice?
Dr. Farrell practices at 425 N Highland Ave, Sherman, TX 75092. Dr. Farrell's primary practice is Texas Digestive Disease Consultants in Sherman, Texas. Dmand AI also links Dr. Farrell to 1 group practice or clinic.
What is Dr. Martin Gregory Farrell's office phone number?
The practice phone on file for Dr. Farrell is (972) 691-3777.
What is Dr. Martin Gregory Farrell's medical license number?
Dr. Farrell holds Texas license G5035.
What medical group is Dr. Martin Gregory Farrell part of?
Dr. Farrell is linked to Texas Digestive Disease Consultants.
Does Dr. Martin Gregory Farrell accept Medicare?
Yes. CMS data shows Dr. Farrell billed Medicare for 1,070 services in 2018.
What services does Dr. Martin Gregory Farrell bill to Medicare?
In 2018, Dr. Farrell's most billed Medicare services were office visit, established patient (99214), surgery: digestive system (45380) and surgery: digestive system (43239).
What drugs does Dr. Martin Gregory Farrell prescribe most?
In 2019 Medicare Part D data, Dr. Farrell's most prescribed drugs by claims were Famotidine, Pantoprazole Sodium and Omeprazole.
Has Dr. Martin Gregory Farrell received payments from drug or device companies?
CMS Open Payments shows $699 in general payments to Dr. Farrell from 11 companies from 2016 to 2018. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Martin Gregory Farrell been practicing?
Dr. Farrell's NPI was assigned in 2006.
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