DR. ROBERT M. SIWIEC M.D.
NPI 1184880676
Internal Medicine - Gastroenterology in Carmel, IN

Q: What is Robert Siwiec's NPI number?

The NPI number for Robert Siwiec is 1184880676. It was assigned to this individual provider in the NPPES registry on August 4, 2008.

Q: What is Robert Siwiec's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Q: When was this NPI record last updated?

The NPPES record for Robert Siwiec was last updated on March 11, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since August 04, 2008PECOS EnrolledAccepts Medicare Assignment

11725 ILLINOIS ST STE 275, CARMEL, IN 46032(317) 944-0980(317) 968-1348 Get Directions Write a Review

NPPES record last updated: March 11, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Mar 11, 2025, Nov 16, 2020 (2 updates tracked since 2020).

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About Dr. Robert M. Siwiec M.d. NPPES

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

DR. ROBERT M. SIWIEC M.D. (NPI 1184880676) is an individual gastroenterology provider in Carmel, Indiana, licensed in Indiana (01070921A) and active in the NPI registry since August 2008. He is enrolled in Medicare PECOS, is affiliated with Indiana University Health, and maintains a secondary practice location in Indianapolis.

NPPES Registry Identity

NPI1184880676

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameDR. ROBERT M. SIWIECCredential: M.D.

Location Address11725 ILLINOIS ST STE 275Carmel, IN 46032-3009

Mailing Address250 N Shadeland Ave, Ste 130 Provider EnrollmentIndianapolis, IN 46219-4959

Phone(317) 944-0980

Fax(317) 968-1348

Sole ProprietorNo

Medical School CMSOtherGraduated 2006

Enumeration DateAugust 4, 2008

Last NPPES UpdateMarch 11, 20252 updates tracked since enumeration

NPPES CertifiedMarch 11, 2025

✔ NPI 1184880676 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

Licenses✔ Licensed in IN · 01070921A✔ Licensed in WI · 5272620

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

Also ListedInternal MedicineTaxonomy 207R00000X · License 036122288 (IL)

11725 ILLINOIS ST STE 275, Carmel, IN 46032

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Secondary Practice Location 1

Location 11701 N Senate BlvdIndianapolis, IN 46202-1239 · Phone (888) 484-3258

Other Identifiers 3

Other000000775536IN · Anthem

OtherP01163479IN · Railroad Medicare

Medicaid201059780IN

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Robert M. Siwiec M.d. 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 ID6608030192

PECOS Enrollment IDI20120613000472

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.

Areas of Expertise CMS Part B claims 13

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.

Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43235

This procedure, known as an upper endoscopy, involves inserting a thin, flexible tube with a camera down the throat to examine the esophagus, stomach, and upper small bowel. It helps diagnose conditions like ulcers or inflammation.

55 services55 patients

Colorectal cancer screening; colonoscopy on individual at high risk G0105

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.

54 services54 patients

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385

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.

46 services46 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

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.

40 services34 patients

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239

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.

34 services34 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

26 services25 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.

23 services14 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

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.

19 services19 patients

Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk G0121

Colorectal cancer screening, such as a colonoscopy, is a preventive measure to detect early signs of cancer in the large intestine. For individuals not at high risk, it's typically recommended at age 50. A small, flexible tube with a camera is used to examine your colon. It's a safe, effective way to catch issues early.

17 services17 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.

16 services16 patients

Study of esophagus to assess movement 91010

This procedure, known as esophageal manometry, involves studying the esophagus or food pipe to evaluate its movement and pressure. It helps understand how well the esophagus can move food to the stomach. Involving a thin, flexible tube, it's a safe, minimally invasive test.

13 services13 patients

Monitoring and recording of esophageal function through nasal tube with electrode 91037

This procedure involves placing a thin tube with an electrode through your nose and into your esophagus. It helps to monitor and record the function of your esophagus, aiding in diagnosing any potential issues.

13 services13 patients

Diagnostic exam of large bowel using a flexible endoscope 45378

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.

11 services11 patients

Hospital Affiliations CMS Care Compare 2

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

Indiana University Health

Acute Care Hospitals · Indianapolis, IN

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number150056

Location1701 N Senate BlvdIndianapolis, IN 46202 · Marion County

Emergency services Birthing friendly

Indiana University Health North Hospital

Acute Care Hospitals · Carmel, IN

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number150161

Location11700 N Meridian StCarmel, IN 46032 · Hamilton County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 46032 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

$122.49 typical visit price

range $53.07 – $161.76

Typical copayment $30.62 (range $13.26 – $40.44)

Most-billed visit code 99204

Established Patient

$94.22 typical visit price

range $16.93 – $132.22

Typical copayment $23.55 (range $4.23 – $33.05)

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.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Enteral feeding supply kit; pump fed, per day, includes but not limited to feeding/flushing syringe, administration set tubing, dressings, tape B4035

Other-Enteral and Parenteral · category OB006N

2 suppliers22 claims640 services$5.66 avg. paid by Medicare

Enteral formula, nutritionally complete, hydrolyzed proteins (amino acids and peptide chain), includes fats, carbohydrates, vitamins and minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit B4153

Other-Enteral and Parenteral · category OB006N

2 suppliers17 claims6,465 services$1.09 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. TAHA Z SHIPCHANDLER M.D.

Otolaryngology

11725 ILLINOIS ST STE 275
CARMEL, IN 46032

Hamilton County (317) 948-5071

NOAH PHILLEO PARKER MD

Otolaryngology

11725 ILLINOIS ST STE 275
CARMEL, IN 46032

Hamilton County (317) 688-4864

MARK I PARTAIN AUD

Audiologist

11725 ILLINOIS ST STE 275
CARMEL, IN 46032

Hamilton County (317) 944-6467

ROBERT B FUJIKI SLP

Speech-Language Pathologist

11725 ILLINOIS ST STE 275
CARMEL, IN 46032

Hamilton County (317) 944-6467

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 Robert Siwiec's NPI number?

The NPI number for Robert Siwiec is 1184880676. It was assigned to this individual provider in the NPPES registry on August 4, 2008.

Where is Robert Siwiec located?

Robert Siwiec practices at 11725 Illinois St Ste 275, Carmel, IN 46032. The listed phone number is (317) 944-0980.

What is Robert Siwiec's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Robert Siwiec enrolled in Medicare?

Yes. Robert Siwiec 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.

What insurance does Robert Siwiec accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and CareSource and 1 other insurer list Robert Siwiec 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 Robert Siwiec affiliated with any hospitals?

According to CMS data, Robert Siwiec is affiliated with Indiana University Health and Indiana University Health North Hospital.

When was this NPI record last updated?

The NPPES record for Robert Siwiec was last updated on March 11, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.