DR. MARIN I MARCU M.D.
NPI 1295795722
Internal Medicine - Gastroenterology in Saint Charles, MO

Medicare Participation & PECOS Enrollment Status

Marin Marcu 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.

Marin Marcu 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: 5597656496

  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: I20100723000302

  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.

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope

This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.

This service was performed 183 times for 162 patients

Biopsy of gallbladder, pancreatic, liver, and bile ducts using a flexible endoscope

This procedure involves using a flexible tube, called an endoscope, to examine and take small tissue samples from your gallbladder, pancreas, liver, and bile ducts. These samples can help diagnose various conditions.

This service was performed 13 times for 11 patients

Biopsy of large bowel using a flexible endoscope

A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.

This service was performed 43 times for 42 patients

Biopsy of small bowel (except ileum) using an endoscope

A small bowel biopsy involves using a thin, flexible tube called an endoscope to examine the small intestine and take a small tissue sample. This sample is then examined under a microscope for any abnormalities. It's a safe, minimally invasive procedure.

This service was performed 21 times for 21 patients

Colonoscopy

A colonoscopy is a medical procedure that allows your doctor to examine your colon (the large intestine). It utilizes a thin, flexible tube with a tiny camera on the end, which is inserted through the rectum. This procedure can help identify issues such as polyps, inflammation, or early signs of cancer. It's usually recommended for people over 50 or those with specific risk factors.

This service was performed for 276 patients

Colorectal cancer screening; colonoscopy on individual at high risk

Colorectal cancer screening, specifically a colonoscopy, is a preventive measure for those at high risk. A thin, flexible tube with a camera inspects the colon to spot any abnormal growths. This test helps detect potential issues early, enhancing the effectiveness of treatment.

This service was performed 29 times for 29 patients

Destruction of polyp or growth of small bowel using an endoscope

This procedure involves the use of a thin, flexible tube called an endoscope to identify and remove any growths or polyps in the small intestine. It's a safe method to prevent possible complications related to these growths.

This service was performed 15 times for 15 patients

Diagnostic exam of large bowel using a flexible endoscope

This procedure, known as a colonoscopy, involves using a flexible tube with a light and camera to examine the large intestine. It helps detect any abnormalities such as polyps or inflammation. It's a standard procedure to ensure gut health.

This service was performed 13 times for 13 patients

Established patient office or other outpatient visit, 30-39 minutes

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.

This service was performed 22 times for 22 patients

Follow-up hospital inpatient care per day, typically 25 minutes

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.

This service was performed 467 times for 154 patients

Imaging of digestive tract done from the inside of the digestive tract

This procedure, known as an endoscopy, involves a small camera being passed into the digestive tract. It helps doctors to see the inside of your digestive system in detail. This can aid in diagnosing conditions or planning treatments. It's generally safe and can provide valuable information.

This service was performed 13 times for 11 patients

Initial hospital inpatient care per day, typically 50 minutes

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.

This service was performed 24 times for 24 patients

Initial hospital inpatient care per day, typically 70 minutes

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

This service was performed 122 times for 109 patients

Injection beneath lining of large bowel using a flexible endoscope

This procedure involves a flexible tube, called an endoscope, being inserted into the large bowel. A small needle is then passed through the tube to inject medication under the bowel lining. This is typically done to treat inflammation or bleeding.

This service was performed 14 times for 13 patients

Insertion of guide wire with dilation of esophagus using a flexible endoscope

This is a procedure where a thin tube, called an endoscope, is gently passed through your mouth into your esophagus. A guide wire is then inserted to help widen any narrow areas. This helps improve swallowing and reduce discomfort.

This service was performed 68 times for 54 patients

Insertion of stent into pancreatic or bile duct using a flexible endoscope

This procedure involves the placement of a tiny tube, known as a stent, into your pancreatic or bile duct. A flexible endoscope, a long, thin instrument with a light and camera, is used. It aids in relieving blockages and improving flow in these ducts.

This service was performed 18 times for 11 patients

New patient office or other outpatient visit, 45-59 minutes

This 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 19 times for 19 patients

Removal of polyps or growths of esophagus, stomach, and/or upper small bowel using an endoscope with mechanical snare

This procedure involves the use of a thin, flexible instrument called an endoscope to visualize and remove abnormal growths, known as polyps, from the esophagus, stomach, or upper small bowel. A tool called a mechanical snare is used to safely cut and remove these growths.

This service was performed 37 times for 37 patients

Removal of polyps or growths of large bowel using a flexible endoscope with electrical cautery

This procedure involves using a flexible tube with a camera, called an endoscope, to view the large intestine. If any abnormal growths or polyps are found, they are removed with an electrically-heated instrument. This is a common way to prevent bowel issues.

This service was performed 202 times for 201 patients

Removal of polyps or growths of large bowel using an endoscope with mechanical snare

This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.

This service was performed 215 times for 211 patients

Removal of stone or debris from bile or pancreatic duct using a flexible endoscope

This procedure, called an endoscopic retrograde cholangiopancreatography (ERCP), involves using a flexible tube with a camera (endoscope) to locate and remove stones or debris from your bile or pancreatic duct. It's a non-surgical method to clear the ducts, enhancing your digestive health.

This service was performed 17 times for 14 patients

Review by radiologist of image from tube placement into bile duct using an endoscope

This procedure involves a specialist, called a radiologist, examining an image taken during a tube placement into your bile duct. The tube is inserted with the help of a tool called an endoscope. This allows the doctor to check for any issues or abnormalities in your bile duct.

This service was performed 14 times for 13 patients

Upper gastrointestinal (GI) endoscopy for acid reflux

An upper GI endoscopy is a procedure to examine your esophagus and stomach using a thin, flexible tube called an endoscope. It helps diagnose conditions like acid reflux by identifying any inflammation or damage. It's generally safe, performed under sedation, and takes about 15-30 minutes.

This service was performed for 520 patients

Physician Visit Costs

The typical physician office visit costs for Medicare beneficiaries in this area are: $32.07 for a new patient copayment and $24.59 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 63301 ZIP code area.

* 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.

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. Marin Marcu is affiliated with the following medical facilities:

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NPI Validation Check Digit Calculation

The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.

The NPI number 1295795722 is valid because the calculated check digit 2 using the Luhn validation algorithm matches the last digit of the original NPI number.

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The following 20 providers are registered at the same or nearby location.

Frequently Asked Questions