CAROLINE WALKER MD
NPI 1962821124
Internal Medicine - Gastroenterology in Denton, TX

Q: What is Caroline Walker's NPI number?

The NPI number for Caroline Walker is 1962821124. It was assigned to this individual provider in the NPPES registry on April 15, 2014.

Q: What is Caroline Walker'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 Caroline Walker was last updated on September 9, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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 April 15, 2014PECOS EnrolledAccepts Medicare Assignment

79.87/100

CMS Quality Rating

2665 SCRIPTURE ST STE 210, DENTON, TX 76201(940) 220-6900(940) 220-6901 Get Directions Write a Review

NPPES record last updated: September 9, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 9, 2020, Jun 29, 2020 (2 updates tracked since 2020).

On this page

About Caroline Walker Md NPPES

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

CAROLINE WALKER MD (NPI 1962821124) is an individual gastroenterology provider in Denton, Texas, licensed in Texas (S6087) and active in the NPI registry since April 2014. She is enrolled in Medicare PECOS, is affiliated with Texas Health Presbyterian Hospital Denton, and is a graduate of Tulane University School Of Medicine (2014).

NPPES Registry Identity

NPI1962821124

Entity TypeIndividualFemale

Primary Taxonomy207RG0100X

Provider Legal NameCAROLINE WALKERCredential: MD

Location Address2665 SCRIPTURE ST STE 210Denton, TX 76201-2302

Mailing Address2665 Scripture St Ste 210Denton, TX 76201-2302 · (940) 222-6900 · Fax (940) 222-6901

Phone(940) 220-6900

Fax(940) 220-6901

Sole ProprietorNo

Medical School CMSTulane University School Of MedicineGraduated 2014

Enumeration DateApril 15, 2014

Last NPPES UpdateSeptember 9, 20202 updates tracked since enumeration

NPPES CertifiedSeptember 9, 2020

✔ NPI 1962821124 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in TX · S6087

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.

Also ListedInternal MedicineTaxonomy 207R00000X · License S6087 (TX)

Also ListedInternal Medicine · HepatologyTaxonomy 207RI0008X · License S6087 (TX)

2665 SCRIPTURE ST STE 210, Denton, TX 76201

Open in Google Maps ↗

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, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Caroline Walker Md 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 ID2860625415

PECOS Enrollment IDI20201002000302

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.

Medicare Billing Reassignment

Medicare enrollment records show Caroline Walker reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Texas Digestive Disease Consultants, PLLC

13 mi

Gastroenterology

4370 MEDICAL ARTS DR STE 295
Flower Mound, TX 75028

Reassigned Medicare billing, Texas enrollment
575 clinicians in this Medicare group

NPI 1689650475 (972) 691-3777

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 15

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.

139 services107 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.

120 services120 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.

70 services69 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.

57 services53 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.

48 services48 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.

47 services46 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.

36 services36 patients

Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk G0121

Colorectal cancer screening, such as a colonoscopy, is a preventive measure to detect early signs of cancer in the large intestine. For individuals not at high risk, it's typically recommended at age 50. A small, flexible tube with a camera is used to examine your colon. It's a safe, effective way to catch issues early.

35 services35 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

29 services16 patients

Colorectal cancer screening; colonoscopy on individual at high risk G0105

Colorectal cancer screening, specifically a colonoscopy, is a preventive measure for those at high risk. A thin, flexible tube with a camera inspects the colon to spot any abnormal growths. This test helps detect potential issues early, enhancing the effectiveness of treatment.

27 services27 patients

Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less 96365

This is a procedure where a medical professional inserts a small tube into your vein to deliver medication, nutrients, or fluids directly into your bloodstream. This can be for treatment, prevention, or diagnosis. The process typically takes less than an hour.

26 services12 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.

24 services24 patients

Insertion of guide wire with dilation of esophagus using a flexible endoscope 43248

This is a procedure where a thin tube, called an endoscope, is gently passed through your mouth into your esophagus. A guide wire is then inserted to help widen any narrow areas. This helps improve swallowing and reduce discomfort.

23 services23 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.

12 services12 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 Presbyterian Hospital Denton

Acute Care Hospitals · Denton, TX

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number450743

Location3000 N I-35Denton, TX 76201 · Denton County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 76201 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

$126.40 typical visit price

range $54.84 – $166.88

Typical copayment $31.60 (range $13.71 – $41.72)

Most-billed visit code 99204

Established Patient

$97.05 typical visit price

range $17.52 – $136.11

Typical copayment $24.26 (range $4.38 – $34.02)

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 4

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

DR. BRYCE COLEMAN MAYS M.D.

Internal Medicine (Gastroenterology)

2665 SCRIPTURE ST STE 210
DENTON, TX 76201

Denton County (940) 387-5577

KATY IRENE COCHRAN FNP

Nurse Practitioner (Family)

2665 SCRIPTURE ST STE 210
DENTON, TX 76201

Denton County (940) 222-6900

JOSEPH D FLETCHER M.D.

Internal Medicine (Gastroenterology)

2665 SCRIPTURE ST STE 210
DENTON, TX 76201

Denton County (940) 387-5577

DR. RAMESH SRINIVASAN MD

Internal Medicine (Gastroenterology)

2665 SCRIPTURE ST STE 210
DENTON, TX 76201

Denton County (940) 387-5577

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 Caroline Walker's NPI number?

The NPI number for Caroline Walker is 1962821124. It was assigned to this individual provider in the NPPES registry on April 15, 2014.

Where is Caroline Walker located?

Caroline Walker practices at 2665 Scripture St Ste 210, Denton, TX 76201. The listed phone number is (940) 220-6900.

What is Caroline Walker's specialty?

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

Is Caroline Walker enrolled in Medicare?

Yes. Caroline Walker 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.

Which organization bills Medicare for Caroline Walker's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Caroline Walker reassigns Medicare benefits to Texas Digestive Disease Consultants, PLLC (Flower Mound, TX). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Caroline Walker's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Caroline Walker accept?

Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 2 other insurers list Caroline Walker 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 Caroline Walker affiliated with any hospitals?

According to CMS data, Caroline Walker is affiliated with Texas Health Presbyterian Hospital Denton.

When was this NPI record last updated?

The NPPES record for Caroline Walker was last updated on September 9, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.