CATHERINE D. LINZAY MD
NPI 1619364247
Internal Medicine - Gastroenterology in Shreveport, LA

Q: What is Catherine Linzay's NPI number?

The NPI number for Catherine Linzay is 1619364247. It was assigned to this individual provider in the NPPES registry on April 21, 2015.

Q: What is Catherine Linzay'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 Catherine Linzay was last updated on August 11, 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 April 21, 2015PECOS EnrolledAccepts Medicare Assignment

8001 YOUREE DR STE 540, SHREVEPORT, LA 71115(318) 631-9121(318) 631-9126 Get Directions Write a Review

NPPES record last updated: August 11, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 11, 2022, May 10, 2021, Feb 25, 2021 (3 updates tracked since 2021).

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About Catherine D. Linzay Md NPPES

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

CATHERINE D. LINZAY MD (NPI 1619364247) is an individual gastroenterology provider in Shreveport, Louisiana, licensed in Louisiana (304986) and active in the NPI registry since April 2015. She is enrolled in Medicare PECOS, is affiliated with Christus St Frances Cabrini Hospital, and is a graduate of Louisiana State University School Of Medicine In Shreveport (2015).

NPPES Registry Identity

NPI1619364247

Entity TypeIndividualFemale

Primary Taxonomy207RG0100X

Provider Legal NameCATHERINE D. LINZAYCredential: MD

Location Address8001 YOUREE DR STE 540Shreveport, LA 71115-2343

Mailing Address3217 Mabel StShreveport, LA 71103-4022 · (318) 631-9121 · Fax (318) 631-9126

Phone(318) 631-9121

Fax(318) 631-9126

Sole ProprietorYes

Medical School CMSLouisiana State University School Of Medicine In ShreveportGraduated 2015

Enumeration DateApril 21, 2015

Last NPPES UpdateAugust 11, 20223 updates tracked since enumeration

NPPES CertifiedAugust 11, 2022

✔ NPI 1619364247 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 LA · 304986

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.

8001 YOUREE DR STE 540, Shreveport, LA 71115

Open in Google Maps ↗

Other Identifiers 2

Medicaid2388134LA

Other304986LA · State License

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 Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan 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

Catherine D. Linzay 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 ID5193023588

PECOS Enrollment IDI20210526000621

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 Reassignments

Medicare enrollment records show Catherine Linzay reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Capitol City Family Health Center, Incorporated

0.8 mi

Federally Qualified Health Center (FQHC)

8730 YOUREE DR STE A-B
Shreveport, LA 71115

Reassigned Medicare billing, Louisiana enrollment
82 clinicians in this Medicare group

NPI 1962154542 (318) 408-1505

Gi Specialists Hospitalists At Wkmc

5.2 mi

Gastroenterology

1202 LOUISIANA AVE
Shreveport, LA 71101

Reassigned Medicare billing, Louisiana enrollment
13 clinicians in this Medicare group

NPI 1255676870 (318) 212-8946

Gastrointestinal Specialists, A.M.C.

5.3 mi

Gastroenterology

3217 MABEL ST
Shreveport, LA 71103

Reassigned Medicare billing, Louisiana enrollment
Medicare enrollment name: Gastrointestinal Specialists Amc
64 clinicians in this Medicare group

NPI 1932171725 (318) 631-9121

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 24

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.

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.

200 services192 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.

177 services135 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.

164 services152 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.

87 services86 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.

63 services62 patients

Pathology examination of tissue using a microscope, intermediate complexity 88305

A pathology examination of tissue with intermediate complexity involves studying a small sample of your body tissue under a microscope. This helps in identifying any abnormal cells or signs of disease. It's a detailed process requiring expert analysis to ensure accurate results.

63 services23 patients

Test for tone and sensation of rectum and anus 91120

This procedure checks the health of the lower digestive tract. The doctor gently examines the area to assess its muscle strength and sensitivity. This helps in detecting any abnormal conditions. It's a standard, safe procedure with minimal discomfort.

58 services58 patients

Study of rectum sensitivity and function 91122

This procedure examines the rectum's sensitivity and functionality. It involves a small, soft balloon inserted into the rectum and inflated to various degrees. The goal is to assess how well your rectum can sense and respond to different volumes. It's a crucial test for diagnosing certain digestive issues.

58 services58 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.

49 services49 patients

Balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm 43249

This procedure involves using a flexible tube with a camera, called an endoscope, to gently expand narrowed areas in your esophagus, stomach, or upper small bowel. A small balloon is inflated, making it easier for food and liquid to pass through. It's safe and effective.

29 services27 patients

Special stained specimen slides to identify organisms including interpretation and report 88312

This service involves coloring specimen slides in a special way to help identify organisms. The colors make different parts of the organism stand out. Afterward, a detailed interpretation and report on the findings are provided.

27 services11 patients

Biopsy of lower large bowel using a flexible endoscope 45331

A biopsy of the lower large bowel involves using a flexible tube with a camera (endoscope) to examine this part of your digestive tract. Small tissue samples may be taken for further examination to detect any abnormalities.

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.

26 services25 patients

Dilation of esophagus 43450

Dilation of the esophagus is a procedure aimed to stretch or open up your esophagus (the tube connecting your mouth to your stomach) when it's narrow. It helps to improve swallowing and alleviate discomfort. It's typically performed using a flexible tube or balloon, under sedation.

24 services23 patients

Ultrasound scan of organ tissue for measuring elasticity 76981

An ultrasound scan of organ tissue measures elasticity, or flexibility. This non-invasive procedure uses sound waves to create images of the inside of your body. It helps in assessing the health of various organs by detecting changes in their stiffness or softness.

24 services24 patients

Insertion of sacral nerve neurostimulator electrode array 64561

The insertion of a sacral nerve neurostimulator electrode array is a procedure where a small device is placed under your skin. This device sends mild electrical pulses to your sacral nerves, which can help manage certain body functions and alleviate symptoms.

18 services18 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.

17 services17 patients

Imaging of digestive tract done from the inside of the digestive tract 91110

This procedure, known as an endoscopy, involves a small camera being passed into the digestive tract. It helps doctors to see the inside of your digestive system in detail. This can aid in diagnosing conditions or planning treatments. It's generally safe and can provide valuable information.

16 services16 patients

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231

Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.

15 services15 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.

15 services15 patients

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.

13 services12 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 lower portion of large bowel using a flexible endoscope 45330

This procedure, known as a sigmoidoscopy, involves using a flexible tube with a camera to examine the lower part of your large bowel. It helps in identifying issues like inflammation, ulcers, or abnormal growths. It's a safe, minimally invasive procedure.

12 services12 patients

Ultrasound exam of lower large bowel using a flexible endoscope 45341

An ultrasound exam of the lower large bowel involves inserting a thin, flexible tube with a small ultrasound device at its tip into the bowel. This allows for detailed images of the bowel wall and nearby structures, which helps in diagnosing various conditions.

12 services12 patients

Hospital Affiliations CMS Care Compare 4

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

Christus St Frances Cabrini Hospital

Acute Care Hospitals · Alexandria, LA

1/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number190019

Location3330 Masonic DriveAlexandria, LA 71301 · Rapides County

Emergency services Birthing friendly

Christus Shreveport-Bossier Health System

Acute Care Hospitals · Shreveport, LA

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number190041

Location1453 E Bert Kouns Industrial LoopShreveport, LA 71105 · Caddo County

Emergency services Birthing friendly

Winn Parish Medical Center

Acute Care Hospitals · Winnfield, LA

OwnershipProprietary

CMS Certification Number190090

Location301 W Boundary AveWinnfield, LA 71483 · Winn County

Emergency services

Willis Knighton Medical Center

Acute Care Hospitals · Shreveport, LA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number190111

Location2600 Greenwood RoadShreveport, LA 71103 · Caddo County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 71115 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

$124.60 typical visit price

range $53.43 – $164.73

Typical copayment $31.15 (range $13.35 – $41.18)

Most-billed visit code 99204

Established Patient

$95.09 typical visit price

range $16.64 – $133.62

Typical copayment $23.77 (range $4.16 – $33.40)

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.

Other Providers at the Same Location NPPES 7

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

MARY S HIRE ACNP-BC

Nurse Practitioner (Acute Care)