Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

BRIAN C MCMORROW MD
NPI 1851391890
Internal Medicine - Gastroenterology in Chesterfield, MO

Q: What is Brian Mcmorrow's NPI number?

The NPI number for Brian Mcmorrow is 1851391890. It was assigned to this individual provider in the NPPES registry on July 29, 2005.

Q: What is Brian Mcmorrow'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 Brian Mcmorrow was last updated on July 1, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 41 days 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 July 29, 2005PECOS EnrolledAccepts Medicare Assignment

75/100

CMS Quality Rating

17298 N OUTER 40 RD STE 406, CHESTERFIELD, MO 63005(314) 529-4900(314) 434-2679 Get Directions Write a Review

NPPES record last updated: July 1, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

On this page

About Brian C Mcmorrow Md NPPES

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

BRIAN C MCMORROW MD (NPI 1851391890) is an individual gastroenterology provider in Chesterfield, Missouri, licensed in Missouri (101547) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS, is affiliated with Mercy Hospital St Louis, and is a graduate of Saint Louis University School Of Medicine (1992).

NPPES Registry Identity

NPI1851391890

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameBRIAN C MCMORROWCredential: MD

Location Address17298 N OUTER 40 RD STE 406Chesterfield, MO 63005-1455

Mailing Address17298 N Outer 40 Rd Ste 406Chesterfield, MO 63005-1455 · (314) 529-4900 · Fax (314) 434-2679

Phone(314) 529-4900

Fax(314) 434-2679

Sole ProprietorNo

Medical School CMSSaint Louis University School Of MedicineGraduated 1992

Enumeration DateJuly 29, 2005

Last NPPES UpdateJuly 1, 2026

NPPES CertifiedJuly 1, 2026

✔ NPI 1851391890 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 MO · 101547

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.

17298 N OUTER 40 RD STE 406, Chesterfield, MO 63005

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health, Ambetter from Sunflower Health Plan 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

Brian C Mcmorrow 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 ID6507944808

PECOS Enrollment IDI20100609000600

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 17

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.

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.

283 services144 patients

Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month 99439

Chronic Care Management services involve regular check-ins with healthcare professionals to manage two or more chronic conditions. It includes an additional 20 minutes of clinical staff time per month, directed by a healthcare professional, to ensure optimal health management.

139 services39 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.

111 services110 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.

107 services103 patients

Special stained specimen slides to examine tissue including interpretation and report 88313

Special stained specimen slides are used to examine tissue samples. This involves applying special dyes to the tissue, which helps to highlight certain features under a microscope. The findings are then interpreted and a report is provided. This can aid in diagnosing various health conditions.

105 services49 patients

Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 99490

Chronic care management services involve a healthcare professional directing clinical staff in managing your chronic conditions. This includes the first 20 minutes per month of services like medication management, care coordination, and health monitoring to help improve your health and quality of life.

75 services39 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.

73 services70 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.

62 services46 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.

56 services56 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.

39 services39 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

33 services30 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.

31 services20 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.

28 services27 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.

24 services13 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.

17 services16 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.

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.

14 services14 patients

Hospital Affiliations CMS Care Compare 2

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

Mercy Hospital St Louis

Acute Care Hospitals · Saint Louis, MO

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number260020

Location615 New Ballas RoadSaint Louis, MO 63141 · St. Louis County

Emergency services Birthing friendly

St Lukes Hospital

Acute Care Hospitals · Chesterfield, MO

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number260179

Location232 S Woods Mill RdChesterfield, MO 63017 · St. Louis County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63005 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

$128.28 typical visit price

range $55.65 – $169.38

Typical copayment $32.07 (range $13.91 – $42.34)

Most-billed visit code 99204

Established Patient

$98.37 typical visit price

range $17.76 – $137.92

Typical copayment $24.59 (range $4.44 – $34.48)

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.

75/100

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

Scored as part of a group practice

Other Providers at the Same Location NPPES

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

JEFFREY E MATHEWS MD

Internal Medicine (Gastroenterology)

17298 N OUTER 40 RD STE 406
CHESTERFIELD, MO 63005

St. Louis County (314) 432-5900

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 Brian Mcmorrow's NPI number?

The NPI number for Brian Mcmorrow is 1851391890. It was assigned to this individual provider in the NPPES registry on July 29, 2005.

Where is Brian Mcmorrow located?

Brian Mcmorrow practices at 17298 N Outer 40 Rd Ste 406, Chesterfield, MO 63005. The listed phone number is (314) 529-4900.

What is Brian Mcmorrow's specialty?

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

Is Brian Mcmorrow enrolled in Medicare?

Yes. Brian Mcmorrow 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 Brian Mcmorrow accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health and Ambetter from Sunflower Health Plan and 3 other insurers list Brian Mcmorrow 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 Brian Mcmorrow affiliated with any hospitals?

According to CMS data, Brian Mcmorrow is affiliated with Mercy Hospital St Louis and St Lukes Hospital.

When was this NPI record last updated?

The NPPES record for Brian Mcmorrow was last updated on July 1, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 41 days 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.