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DR. GREGORY BRENNAN M.D.
NPI 1689017105
Internal Medicine - Gastroenterology in Mansfield, TX

Active since April 15, 2013PECOS EnrolledAccepts Medicare Assignment
79.87/100
CMS Quality Rating
647 N MILLER RD STE B, MANSFIELD, TX 76063(817) 760-7969(817) 760-7976 Get Directions Write a Review

NPPES record last updated: August 25, 2021. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Aug 25, 2021, Jul 5, 2019, Jun 19, 2019 (3 updates tracked since 2019).

About Dr. Gregory Brennan M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. GREGORY BRENNAN M.D. (NPI 1689017105) is an individual gastroenterology provider in Mansfield, Texas, licensed in Texas (Q4044) and active in the NPI registry since April 2013. He is enrolled in Medicare PECOS, is affiliated with Texas Health Hospital Mansfield, and is a graduate of Tufts University School Of Medicine (2013).

NPPES Registry Identity

NPI1689017105
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameDR. GREGORY BRENNANCredential: M.D.
Location Address647 N MILLER RD STE BMansfield, TX 76063-6180
Mailing AddressPo Box 35629Dallas, TX 75235-0629 · (214) 424-2213
Phone(817) 760-7969
Fax(817) 760-7976
Sole ProprietorYes
Medical School CMSTufts University School Of MedicineGraduated 2013
Enumeration DateApril 15, 2013
Last NPPES UpdateAugust 25, 20213 updates tracked since enumeration
NPPES CertifiedAugust 25, 2021
✔ NPI 1689017105 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in TX · Q4044
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
647 N MILLER RD STE B, Mansfield, TX 76063
Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, Imperial Insurance Companies, Inc. and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Gregory Brennan M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2466737259
PECOS Enrollment IDI20190729000813
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 12

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
100 services82 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
79 services79 patients
Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385
This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.
57 services57 patients
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239
This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.
52 services51 patients
Biopsy of large bowel using a flexible endoscope 45380
A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.
50 services50 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
40 services38 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Texas Health Hospital Mansfield

Acute Care Hospitals · Mansfield, TX
3/5 CMS rating
OwnershipProprietary
CMS Certification Number670309
Location2300 Lone Star RoadMansfield, TX 76063 · Tarrant County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 76063 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$129.63 typical visit price
range $56.47 – $171.07
Typical copayment $32.40 (range $14.11 – $42.76)
Most-billed visit code 99204
Established Patient
$99.68 typical visit price
range $18.18 – $139.68
Typical copayment $24.92 (range $4.54 – $34.92)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

79.87/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality68.55
Promoting Interoperability100
Improvement Activities40
Cost64.36

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. SUWEBATU T ODUNSI-SHIYANBADE M.D.
Internal Medicine (Gastroenterology)
647 N MILLER RD STE B
MANSFIELD, TX 76063
Tarrant County (817) 760-7969

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gregory Brennan's NPI number?

The NPI number for Gregory Brennan is 1689017105. It was assigned to this individual provider in the NPPES registry on April 15, 2013.

Where is Gregory Brennan located?

Gregory Brennan practices at 647 N Miller Rd Ste B, Mansfield, TX 76063. The listed phone number is (817) 760-7969.

What is Gregory Brennan's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Gregory Brennan enrolled in Medicare?

Yes. Gregory Brennan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Gregory Brennan accept?

Health plans from Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, Imperial Insurance Companies, Inc. and Molina Healthcare list Gregory Brennan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Gregory Brennan affiliated with any hospitals?

According to CMS data, Gregory Brennan is affiliated with Texas Health Hospital Mansfield.

When was this NPI record last updated?

The NPPES record for Gregory Brennan was last updated on August 25, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.