MR. BRIAN BRENNAN FNP-C
NPI 1487298725
Nurse Practitioner - Family in Saint Louis, MO

Active since October 30, 2019PECOS EnrolledAccepts Medicare Assignment
6155 S GRAND BLVD, SAINT LOUIS, MO 63111(314) 652-0100 Get Directions Write a Review

NPPES record last updated: April 7, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Apr 7, 2026, Jan 20, 2021, Oct 30, 2019 (3 updates tracked since 2019).

About Mr. Brian Brennan Fnp-c NPPES

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

MR. BRIAN BRENNAN FNP-C (NPI 1487298725) is an individual family provider in Saint Louis, Missouri, licensed in Missouri (2019001501) and active in the NPI registry since October 2019. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2018).

NPPES Registry Identity

NPI1487298725
Entity TypeIndividualMale
Primary Taxonomy363LF0000X
Provider Legal NameMR. BRIAN BRENNANCredential: FNP-C
Location Address6155 S GRAND BLVDSaint Louis, MO 63111-2319
Mailing AddressPo Box 790379Saint Louis, MO 63179-0379 · (314) 652-0100
Sole ProprietorNo
Medical School CMSOtherGraduated 2018
Enumeration DateOctober 30, 2019
Last NPPES UpdateApril 7, 20263 updates tracked since enumeration
NPPES CertifiedApril 7, 2026
NPI 1487298725 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License Licensed in MO · 2019001501
Also ListedNurse PractitionerTaxonomy 363L00000X · License 2019001501 (MO)
Also ListedNurse Practitioner · Primary CareTaxonomy 363LP2300X · License 2019001501 (MO)
6155 S GRAND BLVD, Saint Louis, MO 63111

Secondary Practice Locations 2

Location 13225 N Florissant AveSaint Louis, MO 63107-3521 · Phone (314) 652-0100
Location 224 N Sprigg StCape Girardeau, MO 63701-5733 · Phone (314) 652-0100

Accepted 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

Mr. Brian Brennan Fnp-c 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 ID4082020417
PECOS Enrollment IDI20210310001746
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 2

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.
83 services30 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.
18 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63111 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
$86.32 typical visit price
range $55.65 – $169.38
Typical copayment $21.58 (range $13.91 – $42.34)
Most-billed visit code 99203
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.

Other Providers at the Same Location NPPES 9

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

Internal Medicine
6155 S GRAND BLVD
SAINT LOUIS, MO 63111
Social Worker (Clinical)
6155 S GRAND BLVD
SAINT LOUIS, MO 63111
Dental Hygienist
6155 S GRAND BLVD
SAINT LOUIS, MO 63111
Pharmacy (Community/Retail Pharmacy)
6155 S GRAND BLVD
SAINT LOUIS, MO 63111
Nurse Practitioner (Family)
6155 S GRAND BLVD
SAINT LOUIS, MO 63111
Acupuncturist
6155 S GRAND BLVD
SAINT LOUIS, MO 63111
Social Worker (Clinical)
6155 S GRAND BLVD
SAINT LOUIS, MO 63111
Clinic/Center (Federally Qualified Health Center (FQHC))
6155 S GRAND BLVD
SAINT LOUIS, MO 63111

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 Brennan's NPI number?

The NPI number for Brian Brennan is 1487298725. It was assigned to this individual provider in the NPPES registry on October 30, 2019.

Where is Brian Brennan located?

Brian Brennan practices at 6155 S Grand Blvd, Saint Louis, MO 63111. The listed phone number is (314) 652-0100.

What is Brian Brennan's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Brian Brennan enrolled in Medicare?

Yes. Brian Brennan 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 Brennan 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 Brennan 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.

When was this NPI record last updated?

The NPPES record for Brian Brennan was last updated on April 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months 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.