Brett Howard Herzog, MD PHD

Individual provider Active NPI Medical Oncology Physician · Shiloh, IL

NPI 1023499282 · NPPES record last updated Apr 21, 2025

Key facts

NPI
1023499282
Entity type
Individual (NPI type 1)
Primary specialty
Medical Oncology Physician 207RX0202X
License
036153509 (IL)
Practice address
1418 Cross St
Div Im Medical Oncology, Ste 180
Shiloh, IL 62269-2914
Phone
(618) 607-1340
Fax
(618) 622-9724
NPI assigned
Jun 13, 2015
Sex
Male
Sole proprietor
No

Organizations & group practices 5

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

Hospital & facility affiliations 6

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

Medicare Care Compare profile

Specialty
Medical Oncology
Also: Internal Medicine
Education
University of Oklahoma College of Medicine, 2015
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Washington University (2,968 clinicians)
Washington University Physicians in Illinois Inc (168 clinicians)

Practice addresses (Care Compare)

1 Barnes Jew Hosp PLZ
Saint Louis, MO 63110-1003
Phone (314) 747-3000

1418 Cross St
Suite 180
Shiloh, IL 62269-2965
Phone (618) 607-1340

Hospital & facility affiliations

  • Hospice of Southern Illinois, Inc Hospice · Belleville, IL · CCN 141504
  • Memorial Hospital Hospital · Belleville, IL · CCN 140185
  • Barnes Jewish Hospital Hospital · Saint Louis, MO · CCN 260032
  • Alton Memorial Hospital Hospital · Alton, IL · CCN 140002
  • Barnes-Jewish St Peters Hospital Hospital · Saint Peters, MO · CCN 260191

Merit-based Incentive Payment System (MIPS)

Final score
88.01 of 100 (group)
Quality
76.14
Promoting interoperability
99
Improvement activities
40
Cost
76.43

Merit-based Incentive Payment System (MIPS)

Final score
84.2 of 100 (group)
Quality
71.6
Promoting interoperability
100
Improvement activities
40
Cost
75.75

Medicare participation

Medicare fee-for-service enrollment
Enrolled (2 enrollments) in IL, MO
Eligible to order & refer
Part B services: Yes · DME: Yes · Home health: Yes · Power mobility devices: Yes · Hospice: Yes

Medicare enrollment records

Enrollment IDStateProvider typePAC IDDetails
I20200808000063 IL Practitioner - Medical Oncology
Practitioner - Internal Medicine
1850605734 Reassigns benefits to 1 organization
I20210813002314 MO Practitioner - Medical Oncology
Practitioner - Internal Medicine
1850605734 Reassigns benefits to 1 organization

National Provider Directory

Medicare enrollment (NPD)
Yes
Credentials
Doctor of Medicine, Doctor of Philosophy

State licenses

LicenseStateTypeSpecialty
036153509ILMDMedical Oncology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Washington University Physicians in Illinois, Inc Current Accepting new patients
Washington University Physicians in Illinois, Inc Current
since Aug 1, 2020
Accepting new patients
Washington University Physicians in Illinois, Inc Current
since Aug 1, 2020
Accepting new patients

Locations

1418 Cross St
Ste 180
Shiloh, IL 62269
Phone (618) 607-1340

1404 Cross St
Shiloh, IL 62269
Phone (618) 607-1000

4500 Memorial Dr
Swansea, IL 62226
Phone (618) 233-7750

4240 Duncan Ave
Ste 301
Saint Louis, MO 63110

1 Barnes Jewish Hospital Plz
Saint Louis, MO 63110
Phone (314) 362-1700

Interoperability endpoints

  • Direct secure messaging: bherzog156331@direct.carenet.org

Specialties & licenses

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 036153509 IL
Medical Oncology Physician 207RX0202X 036153509 IL Yes

Addresses

Primary practice location

1418 Cross St
Div Im Medical Oncology, Ste 180
Shiloh, IL 62269-2914

Mailing address

PO Box 7412011
Chicago, IL 60674-2011
Phone (618) 607-1340

Other identifiers

IdentifierTypeStateIssuer
200063716MedicaidMO

Electronic endpoints

TypeEndpointUseAffiliation
FHIR URL https://epicproxy.et0965.epichosted.com/FHIRProxy/api/FHIR/DSTU2/ Washington University

Other providers in Shiloh, IL

All providers in Shiloh, IL · Medical Oncology Physician in Illinois

Sources for this page

Verify at the official NPI Registry.