DR. GERALD MARSHALL ISBELL III M.D.
NPI 1093774853
Internal Medicine - Gastroenterology in Dallas, TX

Q: What is Gerald Isbell's NPI number?

The NPI number for Gerald Isbell is 1093774853. It was assigned to this individual provider in the NPPES registry on March 21, 2006.

Q: What is Gerald Isbell's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Gerald Isbell was last updated on March 25, 2022. 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.

Active since March 21, 2006PECOS EnrolledAccepts Medicare Assignment

74.59/100

CMS Quality Rating

6201 HARRY HINES BLVD, DALLAS, TX 75390(214) 633-5555 Get Directions Write a Review

NPPES record last updated: March 25, 2022. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Sep 25, 2020, Nov 9, 2016 (2 updates tracked since 2016).

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About Dr. Gerald Marshall Isbell Iii M.d. NPPES

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

DR. GERALD MARSHALL ISBELL III M.D. (NPI 1093774853) is an individual gastroenterology provider in Dallas, Texas, licensed in Texas (H1289) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, is affiliated with Ut Southwestern University Hospital - William P. Clements Jr., and maintains a secondary practice location in Dallas.

NPPES Registry Identity

NPI1093774853

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameDR. GERALD MARSHALL ISBELL IIICredential: M.D.

Location Address6201 HARRY HINES BLVDDallas, TX 75390-2571

Mailing AddressPo Box 845347Dallas, TX 75284-7208 · (214) 633-5555

Phone(214) 633-5555

Sole ProprietorNo

Medical School CMSOtherGraduated 1982

Enumeration DateMarch 21, 2006

Last NPPES UpdateMarch 25, 20222 updates tracked since enumeration

NPPES CertifiedMarch 24, 2022

✔ NPI 1093774853 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 · H1289

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.

6201 HARRY HINES BLVD, Dallas, TX 75390

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Secondary Practice Location 1

Location 17777 Forest Ln, SUITE C-604Dallas, TX 75230-2571 · Phone (972) 566-6667 · Fax (972) 566-7759

Other Identifiers 2

Other83Y781TX · Bcbstx

Medicaid126555503TX

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections 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. Gerald Marshall Isbell Iii 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 ID5799785556

PECOS Enrollment IDI20070725000325

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 7

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.

58 services53 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.

26 services26 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.

22 services22 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.

21 services21 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.

17 services17 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.

15 services14 patients

Hospital Affiliations CMS Care Compare

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

Ut Southwestern University Hospital - William P. Clements Jr.

Acute Care Hospitals · Dallas, TX

5/5 CMS rating

OwnershipGovernment - State

CMS Certification Number450044

Location6201 Harry Hines BlvdDallas, TX 75390 · Dallas County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 75390 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

$131.01 typical visit price

range $57.18 – $172.86

Typical copayment $32.75 (range $14.29 – $43.21)

Most-billed visit code 99204

Established Patient

$100.80 typical visit price

range $18.48 – $141.20

Typical copayment $25.20 (range $4.62 – $35.30)

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.

74.59/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

56.12

Promoting Interoperability

100

Improvement Activities

Cost

59.2

Other Providers at the Same Location NPPES 20

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

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