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DR. BRENDAN MICHAEL DE MARCO MD
NPI 1083632459
Internal Medicine - Infectious Disease in Saint Louis, MO

Active since July 17, 2006PECOS EnrolledAccepts Medicare Assignment
95.75/100
CMS Quality Rating
2653 LOCUST ST, SAINT LOUIS, MO 63103(855) 751-8879(833) 529-0574 Get Directions Write a Review

NPPES record last updated: April 9, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Apr 9, 2025, Mar 8, 2024, Dec 20, 2016 (3 updates tracked since 2016).

About Dr. Brendan Michael De Marco Md NPPES

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

DR. BRENDAN MICHAEL DE MARCO MD (NPI 1083632459) is an individual infectious disease provider in Saint Louis, Missouri, licensed in Missouri (2023015024) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Ssm Health Saint Louis University Hospital, and is a graduate of University Of Texas Medical School At Houston (2003).

NPPES Registry Identity

NPI1083632459
Entity TypeIndividualMale
Primary Taxonomy207RI0200X
Provider Legal NameDR. BRENDAN MICHAEL DE MARCOCredential: MD
Location Address2653 LOCUST STSaint Louis, MO 63103-1411
Mailing AddressPo Box 17366Austin, TX 78760-7366 · (512) 978-9000
Phone(855) 751-8879
Fax(833) 529-0574
Sole ProprietorNo
Medical School CMSUniversity Of Texas Medical School At HoustonGraduated 2003
Enumeration DateJuly 17, 2006
Last NPPES UpdateApril 9, 20253 updates tracked since enumeration
NPPES CertifiedApril 9, 2025
✔ NPI 1083632459 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RI0200X
License✔ Licensed in MO · 2023015024
Definition
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.
2653 LOCUST ST, Saint Louis, MO 63103
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware, Anthem Blue Cross and Blue Shield 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

Dr. Brendan Michael De Marco 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 ID7416959960
PECOS Enrollment IDI20090727000008, I20230810001586, I20260217002381
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

3

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

Ssm Health Care Group
1.4 mi
Internal Medicine
1225 SOUTH GRAND BLVD, 2L - DOOR 3,4
Saint Louis, MO 63104
  • Reassigned Medicare billing, Missouri enrollment
  • 1,294 clinicians in this Medicare group
NPI 1306589544 (314) 977-6100
Vivent Health Inc
327 mi
Mental Health (Including Community Mental Health Center)
1311 N 6TH ST
Milwaukee, WI 53212
  • Reassigned Medicare billing, Missouri enrollment
  • 24 clinicians in this Medicare group
NPI 1770721607 (414) 223-6800
Access Telecare, PLLC
547 mi
Internal Medicine
1717 MAIN ST STE 5850
Dallas, TX 75201
  • Reassigned Medicare billing, Missouri, New Mexico, South Carolina, Tennessee and Texas enrollments
  • 138 clinicians in this Medicare group
NPI 1013303080 (972) 449-0540

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 5

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.

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.
71 services38 patients
Telehealth consultation, emergency department or initial inpatient, typically 70 minutes or more communicating with the patient via telehealth G0427
A Telehealth consultation is a virtual visit where you can discuss your health concerns with a healthcare provider from the comfort of your home. In this process, which typically lasts 70 minutes or more, the provider can assess, diagnose, and offer treatment options for your condition using communication technology.
24 services22 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.
23 services23 patients
Follow-up inpatient consultation, complex, physicians typically spend 35 minutes communicating with the patient via telehealth G0408
A follow-up inpatient consultation is a service where your doctor checks on your health progress after initial treatment. It's complex and typically takes about 35 minutes via telehealth, which means you'll talk to your doctor remotely, using technology.
17 services14 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.
15 services14 patients

Hospital Affiliations CMS Care Compare

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

Ssm Health Saint Louis University Hospital

Acute Care Hospitals · Saint Louis, MO
1/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number260105
Location3635 Vista AveSaint Louis, MO 63110 · St. Louis City County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63103 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.

95.75/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Promoting Interoperability95
Improvement Activities40

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.

SARAH ANN FRANSSENS AGNP
Nurse Practitioner (Adult Health)
2653 LOCUST ST
SAINT LOUIS, MO 63103
St. Louis City (314) 645-6451
LAMARA DICKERSON LCSW
Social Worker (Clinical)
2653 LOCUST ST
SAINT LOUIS, MO 63103
St. Louis City (314) 401-8976
DR. DANIEL RICHARD LENGER MD
Psychiatry & Neurology (Psychiatry)
2653 LOCUST ST
SAINT LOUIS, MO 63103
St. Louis City (855) 751-8879
AMC PHARMACY LLC
Pharmacy (Community/Retail Pharmacy)
2653 LOCUST ST
SAINT LOUIS, MO 63103
St. Louis City (855) 751-8878
NICHOLAS JON WILSDORF DDS
Dentist
2653 LOCUST ST
SAINT LOUIS, MO 63103
St. Louis City (314) 645-6451
DAVID C WOODARD LMSW
Social Worker (Clinical)
2653 LOCUST ST
SAINT LOUIS, MO 63103
St. Louis City (855) 751-8879
MRS. NATALIE L BAUGHER NP
Nurse Practitioner (Family)
2653 LOCUST ST
SAINT LOUIS, MO 63103
St. Louis City (314) 977-9050

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 Brendan De Marco's NPI number?

The NPI number for Brendan De Marco is 1083632459. It was assigned to this individual provider in the NPPES registry on July 17, 2006.

Where is Brendan De Marco located?

Brendan De Marco practices at 2653 Locust St, Saint Louis, MO 63103. The listed phone number is (855) 751-8879.

What is Brendan De Marco's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is Brendan De Marco enrolled in Medicare?

Yes. Brendan De Marco 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 organizations bill Medicare for Brendan De Marco's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Brendan De Marco reassigns Medicare benefits to 3 organizations: Ssm Health Care Group (Saint Louis, MO), Vivent Health Inc (Milwaukee, WI) and Access Telecare, PLLC (Dallas, TX). Each 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 Brendan De Marco's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Brendan De Marco accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Texas and Medica and 1 other insurer list Brendan De Marco 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 Brendan De Marco affiliated with any hospitals?

According to CMS data, Brendan De Marco is affiliated with Ssm Health Saint Louis University Hospital.

When was this NPI record last updated?

The NPPES record for Brendan De Marco was last updated on April 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.