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DENISE BRENNAN
NPI 1154646941
Counselor - Professional in Festus, MO

Active since April 05, 2010PECOS EnrolledAccepts Medicare Assignment
227 E MAIN ST, FESTUS, MO 63028(636) 296-6206(636) 296-0102 Get Directions Write a Review

NPPES record last updated: February 4, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Denise Brennan NPPES

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

DENISE BRENNAN (NPI 1154646941) is an individual professional provider in Festus, Missouri, licensed in Missouri (2017036689) and active in the NPI registry since April 2010. She is enrolled in Medicare PECOS and is a graduate of Other (2009).

NPPES Registry Identity

NPI1154646941
Entity TypeIndividualFemale
Primary Taxonomy101YP2500X
Provider Legal NameDENISE BRENNAN
Location Address227 E MAIN STFestus, MO 63028-1952
Mailing Address227 E Main StFestus, MO 63028-1952 · (636) 296-6206 · Fax (636) 296-0102
Phone(636) 296-6206
Fax(636) 296-0102
Sole ProprietorNo
Medical School CMSOtherGraduated 2009
Enumeration DateApril 5, 2010
Last NPPES UpdateFebruary 4, 2025
NPPES CertifiedFebruary 4, 2025
✔ NPI 1154646941 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · ProfessionalBehavioral Health & Social Service Providers
Taxonomy Code101YP2500X
License✔ Licensed in MO · 2017036689
227 E MAIN ST, Festus, MO 63028
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Medica, Oscar Insurance Company.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

Denise Brennan 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 ID3779001656
PECOS Enrollment IDI20250514002733
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 Denise Brennan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

St. Louis Behavioral Medicine Institute Inc
29 mi
Psychologist
1129 MACKLIND AVE
Saint Louis, MO 63110
  • Reassigned Medicare billing, Missouri enrollment
  • 82 clinicians in this Medicare group
NPI 1487732335 (314) 534-0200

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

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.

COMTREA, INC
Clinic/Center (Rehabilitation, Substance Use Disorder)
227 E MAIN ST
FESTUS, MO 63028
Jefferson County (636) 931-2700
RICHARD F MOLL
Case Manager/Care Coordinator
227 E MAIN ST
FESTUS, MO 63028
Jefferson County (636) 931-2700
ASHLEY MARIE TRUEMAN LCSW
Social Worker (Clinical)
227 E MAIN ST
FESTUS, MO 63028
Jefferson County (636) 321-0101
KATY HERMAN
Case Manager/Care Coordinator
227 E MAIN ST
FESTUS, MO 63028
Jefferson County (636) 321-0101
JAMES R DAPRON
Case Manager/Care Coordinator
227 E MAIN ST
FESTUS, MO 63028
Jefferson County (636) 931-2700
AMY LEE DICKEMPER
Case Manager/Care Coordinator
227 E MAIN ST
FESTUS, MO 63028
Jefferson County (636) 931-2700
MONICA L BEAUCHAMP
Case Manager/Care Coordinator
227 E MAIN ST
FESTUS, MO 63028
Jefferson County (636) 931-2700
BRITTANY N HAFERTEPE
Case Manager/Care Coordinator
227 E MAIN ST
FESTUS, MO 63028
Jefferson County (636) 296-6206

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 Denise Brennan's NPI number?

The NPI number for Denise Brennan is 1154646941. It was assigned to this individual provider in the NPPES registry on April 5, 2010.

Where is Denise Brennan located?

Denise Brennan practices at 227 E Main St, Festus, MO 63028. The listed phone number is (636) 296-6206.

What is Denise Brennan's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Professional, with taxonomy code 101YP2500X.

Is Denise Brennan enrolled in Medicare?

Yes. Denise 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.

Which organization bills Medicare for Denise Brennan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Denise Brennan reassigns Medicare benefits to St. Louis Behavioral Medicine Institute Inc (Saint Louis, MO). 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 Denise Brennan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Denise Brennan accept?

Health plans from Medica and Oscar Insurance Company list Denise 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 Denise Brennan was last updated on February 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.