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

Q: What is the provider's specialty?

The provider's specialty is Internal Medicine with taxonomy code 207RG0100X and a focus in Gastroenterology.

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: July 19, 2026.

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

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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

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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 2024 & 2026 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

Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43235

This procedure, known as an upper endoscopy, involves inserting a thin, flexible tube with a camera down the throat to examine the esophagus, stomach, and upper small bowel. It helps diagnose conditions like ulcers or inflammation.

37 services37 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

30 services30 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

26 services26 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

20 services16 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

17 services17 patients

Diagnostic exam of large bowel using a flexible endoscope 45378

This procedure, known as a colonoscopy, involves using a flexible tube with a light and camera to examine the large intestine. It helps detect any abnormalities such as polyps or inflammation. It's a standard procedure to ensure gut health.

11 services11 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

Quality

68.55

Promoting Interoperability

100

Improvement Activities

Cost

64.36

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

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

About Dr. Gregory Brennan M.d. NPPES

NPPES Registry Identity

Specialties & Licenses

Group Practice 1

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare Enrollment Status

Areas of Expertise CMS Part B claims 12

Hospital Affiliations CMS Care Compare

Texas Health Hospital Mansfield

Physician Visit Costs CMS claims · ZIP area

Medicare Quality Performance CMS QPP · MIPS

Other Providers at the Same Location NPPES

Frequently Asked Questions

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