DR. BRETT HOWARD HERZOG MD PHD
NPI 1023499282
Internal Medicine - Medical Oncology in Shiloh, IL
Quality Rating: 92.39 out of 100 score
NPI Status: Active since June 13, 2015
Contact Information
1418 CROSS ST
DIV IM MEDICAL ONCOLOGY, STE 180
SHILOH, IL
ZIP 62269
Phone: (618) 607-1340
Fax: (618) 622-9724
- NPI Profile Information
- Primary Taxonomy
- Secondary Taxonomies
- Insurance Plans Accepted
- Medicare Participation & PECOS Status
- Areas of Expertise
- Physician Visit Costs
- Overall Quality Performance
- Hospital Affiliations - Privileges
- NPI Validation
- Other Providers Same Location
- Frequently Asked Questions
- Individual
- Male
- Years of Experience 11
- Internal Medicine
- Medical Oncology
- Accepts Insurance
- Accepts Medicare Approved Payment
- PECOS Enrolled
About BRETT HERZOG
This page provides the complete NPI Profile along with additional information for Brett Herzog, an internist established in Shiloh, Illinois with a medical specialization in Internal Medicine, focusing in medical oncology and more than 11 years of experience. He graduated from University Of Oklahoma College Of Medicine in 2015. The healthcare provider is registered in the NPI registry with number 1023499282 assigned on June 2015. The practitioner's primary taxonomy code is 207RX0202X with license number 036153509 (IL). The provider is registered as an individual and his NPI record was last updated one year ago.
- NPI
- 1023499282
- Provider Name
- DR. BRETT HOWARD HERZOG MD PHD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 1418 CROSS ST DIV IM MEDICAL ONCOLOGY, STE 180 SHILOH, IL 62269
- Location Phone
- (618) 607-1340
- Location Fax
- (618) 622-9724
- Mailing Address
- PO BOX 7412011 CHICAGO, IL 60674
- Mailing Phone
- (618) 607-1340
- Mailing Fax
- (618) 622-9724
- Medical School Name
- UNIVERSITY OF OKLAHOMA COLLEGE OF MEDICINE
- Graduation Year
- 2015
- Is Sole Proprietor?
- No
- Enumeration Date
- 06-13-2015
- Last Update Date
- 04-21-2025
- Code Navigator
An internist like Brett Herzog is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.
Location Map
Specialty - Primary Taxonomy
The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.
- Classification
Internal Medicine Medical Oncology
- Taxonomy Code
- 207RX0202X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 036153509
- License State
- IL
- Taxonomy Description
- An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.
Secondary Taxonomies
The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.
| No. | Taxonomy Code | Type | Classification / Specialization |
License No. (State) |
|---|---|---|---|---|
| 1 | 207R00000X | Allopathic & Osteopathic Physicians | Internal Medicine | 036153509 (IL) |
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
- Cox HealthPlans Bronze Expanded Standard - EPO
- Cox HealthPlans Bronze Preferred - EPO
- Cox HealthPlans Gold Preferred - EPO
- Cox HealthPlans Gold Standard - EPO
- Cox HealthPlans Silver Connect - EPO
- Cox HealthPlans Silver Preferred - EPO
- Cox HealthPlans Silver Standard - EPO
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
Additional Identifiers
The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.
| Identifier | Type / Code | Identifier State | Identifier Issuer |
|---|---|---|---|
| 200063716 | MEDICAID (05) | MO |
Medicare Participation & PECOS Enrollment Status
Brett Herzog is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.
Brett Herzog is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.
What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.
Is the provider registered in PECOS? Yes
PECOS PAC ID: 1850605734
What is the PECOS Associate Control ID?
A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.PECOS Enrollment ID: I20200808000063, I20210813002314
What is the Provider Enrollment ID?
The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.Accepts Medicare Assignment? Yes
What does it mean "accepts medicare assignment"?
When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes
Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes
Eligible to Order or Refer a Home Health Agency (HHA): Yes
Eligible to Order or Refer Power Mobility Devices: Yes
Areas of Expertise
The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.
Administration of additional new drug or substance into vein using push technique
Administration of additional new drug or substance into vein, 1 hour or less
Administration of chemotherapy into vein, 1 hour or less
Administration of chemotherapy into vein, each additional hour
Chemotherapy administration, intravenous infusion technique; initiation of infusion in the office/clinic setting using office/clinic pump/supplies, with continuation of the infusion in the community setting (e.g., home, domiciliary, rest home or assisted l
Collection of blood sample from implanted device
Established patient office or other outpatient visit, 30-39 minutes
Established patient office or other outpatient visit, 40-54 minutes
Infusion into a vein for hydration, 31-60 minutes
Infusion into a vein for hydration, each additional hour
Infusion into a vein for therapy, prevention, or diagnosis concurrent with another infusion
Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less
Infusion into a vein for therapy, prevention, or diagnosis, additional sequential infusion, 1 hour or less
Infusion into a vein for therapy, prevention, or diagnosis, each additional hour
Infusion, normal saline solution , 1000 cc
Injection of additional new drug or substance into vein
Injection of drug or substance under skin or into muscle
Injection, carboplatin, 50 mg
Injection, darbepoetin alfa, 1 microgram (non-esrd use)
Injection, dexamethasone sodium phosphate, 1 mg
Injection, diphenhydramine hcl, up to 50 mg
Injection, durvalumab, 10 mg
Injection, fluorouracil, 500 mg
Injection, fosaprepitant, 1 mg
Injection, leucovorin calcium, per 50 mg
Injection, paclitaxel, 1 mg
Injection, palonosetron hcl, 25 mcg
Injection, pembrolizumab, 1 mg
Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg
New patient office or other outpatient visit, 45-59 minutes
Red blood cells, leukocytes reduced, each unit
Transfusion of blood or blood products
Unclassified drugs
This procedure involves injecting a new medication or substance directly into your vein using a method called the 'push' technique. It's a quick way to deliver medication into your bloodstream for fast-acting relief or treatment.
This service was performed 65 times for 20 patientsThis procedure involves introducing a new drug or substance into your vein, typically via an IV drip. It lasts for an hour or less. This method allows the substance to quickly reach your bloodstream, ensuring rapid and effective treatment.
This service was performed 98 times for 33 patientsChemotherapy is a treatment that uses drugs to destroy cancer cells. When administered into a vein, it's often through an IV. This procedure usually lasts 1 hour or less. You may feel a slight pinch as the needle is inserted, but it's generally painless.
This service was performed 377 times for 94 patientsChemotherapy is a treatment method that uses drugs to destroy cancer cells. The drugs are administered into a vein, usually in the arm. Each additional hour of chemotherapy allows for more of the medication to enter your bloodstream to fight against the cancer cells.
This service was performed 53 times for 19 patientsChemotherapy is a treatment method that uses drugs to destroy cancer cells. In the office, a pump is used to start an intravenous infusion of these drugs. The infusion can then be continued at home or another setting, like a rest home.
This service was performed 42 times for 16 patientsCollection of a blood sample from an implanted device involves drawing blood from a device placed under your skin. This device, often a port or catheter, allows easy access to your bloodstream. The procedure is usually quick and causes minimal discomfort.
This service was performed 43 times for 32 patientsThis 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.
This service was performed 269 times for 53 patientsThis service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
This service was performed 51 times for 33 patientsThis is a procedure where a sterile solution is administered into your vein to help restore body fluid balance. It typically lasts between 31-60 minutes. It's a safe, common treatment for dehydration or to deliver medication.
This service was performed 27 times for 19 patientsThis procedure involves delivering fluids directly into your vein to keep your body hydrated. It is typically done when oral hydration is insufficient. Each additional hour means more fluid is infused to ensure adequate hydration.
This service was performed 27 times for 14 patientsAn infusion into a vein is a method of delivering medication, nutrients, or fluids directly into your bloodstream. If it's concurrent with another infusion, it means two different solutions are given at the same time. This can be for treatment, prevention, or diagnostic purposes.
This service was performed 53 times for 26 patientsThis is a procedure where a medical professional inserts a small tube into your vein to deliver medication, nutrients, or fluids directly into your bloodstream. This can be for treatment, prevention, or diagnosis. The process typically takes less than an hour.
This service was performed 64 times for 26 patientsThis procedure involves injecting fluids or medication directly into your vein. It's used for treatment, prevention, or diagnosis. An additional sequential infusion may be given within an hour if needed. This helps to ensure the medicine is distributed effectively in your body.
This service was performed 174 times for 54 patientsThis procedure involves delivering medication, fluids, or nutrients directly into your vein. This is done to treat, prevent, or diagnose various conditions. Each additional hour refers to the extended time you may need to receive these substances for optimal results.
This service was performed 42 times for 13 patientsAn infusion of normal saline solution, 1000 cc, is a common medical procedure. It involves introducing a saltwater solution into your bloodstream via an intravenous (IV) line. This helps to hydrate your body, correct electrolyte imbalances, and deliver medications if needed.
This service was performed 49 times for 26 patientsThis procedure involves introducing a new medication or substance into your bloodstream via a vein. It's typically done using a small needle. The substance can help treat various conditions or assist in diagnostic procedures. It's generally safe and monitored by professionals.
This service was performed 340 times for 67 patientsThis procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.
This service was performed 189 times for 58 patientsCarboplatin is a chemotherapy drug used to treat various types of cancer by slowing or stopping the growth of cancer cells. The 50 mg injection is administered into a vein by a healthcare professional. Side effects may occur.
This service was performed 480 times for 22 patientsDarbepoetin alfa injection is a medication used to treat anemia (low red blood cell count) often caused by chronic kidney disease or chemotherapy. It works by stimulating your body to produce more red blood cells, helping to increase your energy and well-being.
This service was performed 11,940 times for 11 patientsDexamethasone sodium phosphate is a medication given via injection. It is a type of steroid that helps reduce inflammation and immune responses. It can be used to treat a variety of conditions, such as allergies, skin conditions, arthritis, and more.
This service was performed 2,080 times for 64 patientsDiphenhydramine HCL injection is a medicine given to alleviate symptoms of allergies, colds, or hay fever. It can also help with motion sickness and certain symptoms of Parkinson's disease. Up to 50 mg may be administered depending on your condition.
This service was performed 51 times for 19 patientsDurvalumab is a medication given via injection to help your body's immune system fight certain types of cancer. It's administered by a healthcare professional, usually every 2-4 weeks. This specific dose is 10 mg.
This service was performed 8,654 times for 13 patientsFluorouracil is a chemotherapy drug, given as an injection to treat various types of cancer. The 500 mg dose helps to stop cancer cells from growing and multiplying. You might feel some side effects, but these are typically manageable.
This service was performed 413 times for 17 patientsFosaprepitant is an anti-nausea medication given via injection. It's often used to prevent nausea and vomiting caused by chemotherapy. This injection blocks signals to the brain that trigger these symptoms, helping you feel better.
This service was performed 9,000 times for 23 patientsLeucovorin calcium is an injection given to enhance the effectiveness of certain cancer treatments or to reduce the harmful effects of some medications. The dose is determined by your doctor and is typically administered in a healthcare setting.
This service was performed 637 times for 16 patientsPaclitaxel is a medication administered via injection to treat various types of cancer. It works by inhibiting cell division, thus preventing cancer cells from growing and multiplying. Each dose is tailored to the patient's body size.
This service was performed 5,706 times for 11 patientsPalonosetron HCL is an injection used to prevent nausea and vomiting caused by chemotherapy. It works by blocking a natural substance (serotonin) in the body that can cause vomiting. This helps improve your comfort during cancer treatment.
This service was performed 1,250 times for 46 patientsPembrolizumab is a medication given via injection to help your body's immune system fight certain types of cancer. It's typically administered in a hospital or clinic by a healthcare professional.
This service was performed 20,200 times for 23 patientsThis is a procedure where a small dose of Vitamin B-12, also known as Cyanocobalamin, is injected into your body. This vitamin is essential for nerve function and the production of red blood cells. It's often used to treat vitamin B-12 deficiency.
This service was performed 27 times for 13 patientsThis is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
This service was performed 22 times for 22 patients"Leukocytes reduced red blood cells" is a blood product where most white blood cells (leukocytes) are removed. This process minimizes potential reactions or infections during a transfusion. Each unit refers to the amount transfused.
This service was performed 23 times for 13 patientsA transfusion of blood or blood products involves receiving blood, or parts of blood, through an intravenous (IV) line. This procedure is often necessary when your body can't make its own blood or has lost blood due to an illness or injury. It can help restore your blood's normal function and improve your health.
This service was performed 26 times for 14 patientsUnclassified drugs are medications that don't fit into an existing category or class due to their unique properties or uses. They may be used for various conditions and their effects may differ widely. Always ask your healthcare provider for more information about these drugs.
This service was performed 53 times for 17 patientsPhysician Visit Costs
The typical physician office visit costs for Medicare beneficiaries in this area are: $43.33 for a new patient copayment and $24.92 for an established patient copayment.
The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.
For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.
The prices below reflect the costs for new and established patients in the 62269 ZIP code area.
New Patients Visit Costs *
The most utilized procedure code for new patients office visits is 99205
- Average New Patient Price $173.35
- Minimum New Patient Price $56.28
- Maximum New Patient Price $173.35
- Average New Patient Copayment $43.33
- Minimum New Patient Copayment $14.07
- Maximum New Patient Copayment $43.33
Established Patients Visit Costs *
The most utilized procedure code for established patients office visits is 99214
- Average Established Patient Price $99.71
- Minimum Established Patient Price $17.51
- Maximum Established Patient Price $139.99
- Average Established Patient Copayment $24.92
- Minimum Established Patient Copayment $4.37
- Maximum Established Patient Copayment $34.99
* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.
Overall MIPS Quality Performance
The provider participated in CMS Quality Payment Program under the Merit-based Incentive Payment System (MIPS) and has an overall final score of 92.39, based on four performance areas: quality, improvement activities, promoting interoperability, and cost. The purpose of this information is to help people with Medicare make informed decisions and incentivize doctors and clinicians to maximize performance.
The Merit-based Incentive Payment System (MIPS) is a way providers could use to participate in CMS Quality Payment Program (QPP). The MIPS program affects clinician reimbursement for Part B covered professional services and also rewards them for improving the quality of patient care and outcomes.
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Final Score: 92.39 out of 100
The MIPS program evaluates providers across multiple categories with a specific weight for each category resulting a in a MIPS final score that ranges from 0 to 100 points. The MIPS Final Score determines whether providers receive a negative, neutral or positive MIPS payment adjustment.
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Quality Score: 97.81
The Quality category assesses providers performance on clinical practices and patient outcomes under the traditional MIPS program. The quality measures help identify the quality of healthcare processes, outcomes, and patient experiences. The Quality measure category compromises 40% providers final MPIS scores.
There are six collection types for MIPS quality measures: Electronic Clinical Quality Measures (eCQMs), MIPS Clinical Quality Measures (CQMs), Qualified Clinical Data Registry (QCDR) Measures, Medicare Part B claims measures, CMS Web Interface measures and The Consumer Assessment of Healthcare Providers and Systems (CAHPS) for MIPS Survey.
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Promoting Interoperability Score: 100
The Interoperability category measures the providers ability to use technology to exchange and make use of healthcare information in a way that is less burdensome and improves outcomes. The Interoperability measure category compromises 25% providers final MPIS scores.
The MIPS Interoperability measure focuses on the use of certified electronic health record technology (CEHRT) to improve patient access health information, the exchange of information between clinicians and pharmacies and the systematic collection, analysis, and interpretation of healthcare data. -
Improvement Activities Score: 40
The Improvement Activities performance category evaluates the providers participation in clinical activities that support the improvement of clinical practice, care delivery, and outcomes. Providers have the option to choose 2 to 4 activities from an inventory of over 100 improvement activities. Providers typically choose the activities that best fit their needs. The improvement activities measure category compromises 15% providers final MPIS scores.
The Improvement measures aim to better patient engagement, patient safety and other areas of patient care. The Improvement Activities category compromises 15% of providers final MPIS scores. -
Cost Score: 70.26
The Cost performance category asses the amount and types of services provided and how clinicians coordinate care and seek improvement of health outcomes by ensuring patients receive the appropriate services.
Although providers don't determine the price of healthcare services they are important in delivering high-quality care at a reasonable cost. The Cost measures category compromises 20% of providers final MPIS scores. -
Cost Score: 70.26
The Cost performance category asses the amount and types of services provided and how clinicians coordinate care and seek improvement of health outcomes by ensuring patients receive the appropriate services.
Although providers don't determine the price of healthcare services they are important in delivering high-quality care at a reasonable cost. The Cost measures category compromises 20% of providers final MPIS scores.
Find Provider Hospital Affiliations - Privileges
Doctors and physicians must apply for hospital privileges to treat patients at hospitals. Find out if your doctor has privileges to practice at your preferred hospital by using the hospital affiliation information below based on recent medical claims.
Hospital affiliation is identified through self-reporting data, inpatient, outpatient, physician and ancillary service claims linked by the medical claims NPI number and place of service code. Additionally, to further determine provider hospital affiliation the clinician must have provided services to at least three patients on three different dates in the last 12 months. Brett Herzog is affiliated with the following medical facilities:
| Hospital Name | Address | Phone | Hospital Type | Overall Rating |
|---|---|---|---|---|
| MEMORIAL HOSPITAL | 4500 MEMORIAL DRIVE BELLEVILLE, IL 62226 | (618) 233-7750 | Acute Care Hospitals | |
| BARNES JEWISH HOSPITAL | ONE BARNES-JEWISH HOSPITAL PLAZA SAINT LOUIS, MO 63110 | (314) 747-3000 | Acute Care Hospitals |
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NPI NPI Number Validation
How NPI Validation Works
The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.
To verify the NPI 1023499282, we treat the final digit (2) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 68. The final step is to find the difference between that total and the next multiple of ten (70 - 68 = 2).
Digit-by-digit view
Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.
Step 1: Double every other digit from the right
Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 68 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 13 providers are registered at the same or a nearby location.
SHILOH, IL 62269
SHILOH, IL 62269
SHILOH, IL 62269
SHILOH, IL 62269
SHILOH, IL 62269
SHILOH, IL 62269
SHILOH, IL 62269
SHILOH, IL 62269
SHILOH, IL 62269
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1023499282, enumerated as an "individual" on June 13, 2015.
The provider is located at 1418 CROSS ST DIV IM MEDICAL ONCOLOGY, STE 180 SHILOH, IL 62269 and the phone number is (618) 607-1340.
Internal Medicine with taxonomy code 207RX0202X and a focus in Medical Oncology.
The provider might be accepting Accepts: Cox HealthPlans, Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.
Brett Herzog is affiliated with: MEMORIAL HOSPITAL and BARNES JEWISH HOSPITAL.