DR. JOHN NICHOLAS TASIOPOULOS D.O.
NPI 1346384492
Internal Medicine - Gastroenterology in Libertyville, IL

Q: What is John Tasiopoulos's NPI number?

The NPI number for John Tasiopoulos is 1346384492. It was assigned to this individual provider in the NPPES registry on February 19, 2007.

Q: What is John Tasiopoulos'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 John Tasiopoulos was last updated on December 13, 2021. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since February 19, 2007PECOS EnrolledAccepts Medicare Assignment

1880 W WINCHESTER RD, SUITE 201, LIBERTYVILLE, IL 60048(847) 247-0187(847) 247-0487 Get Directions Write a Review

NPPES record last updated: December 13, 2021. Verified against the NPPES registry weekly; last sync: July 19, 2026.

On this page

About Dr. John Nicholas Tasiopoulos D.o. NPPES

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

DR. JOHN NICHOLAS TASIOPOULOS D.O. (NPI 1346384492) is an individual gastroenterology provider in Libertyville, Illinois, licensed in Illinois (207RG0100X) and active in the NPI registry since February 2007. He is enrolled in Medicare PECOS, is affiliated with Advocate Condell Medical Center, and is a graduate of Midwestern University, Chicago College Of Osteopathic Med (1991).

NPPES Registry Identity

NPI1346384492

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameDR. JOHN NICHOLAS TASIOPOULOSCredential: D.O.

Location Address1880 W WINCHESTER RD, SUITE 201Libertyville, IL 60048-5341

Mailing Address1880 W Winchester Rd, Suite 201Libertyville, IL 60048-5341 · (847) 247-0187 · Fax (847) 247-0487

Phone(847) 247-0187

Fax(847) 247-0487

Sole ProprietorNo

Medical School CMSMidwestern University, Chicago College Of Osteopathic MedGraduated 1991

Enumeration DateFebruary 19, 2007

Last NPPES UpdateDecember 13, 2021

NPPES CertifiedDecember 13, 2021

✔ NPI 1346384492 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in IL · 207RG0100X

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.

1880 W WINCHESTER RD, Libertyville, IL 60048

Open in Google Maps ↗

Other Identifiers 3

Medicaid036-087154IL

Other110136967IL · Medicare Railroad

Other4907305IL · Blue Cross Blue Shield

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Home State Health, Ambetter Health, Ambetter Health of Delaware.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. John Nicholas Tasiopoulos D.o. 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 ID1557386869

PECOS Enrollment IDI20051005001257

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 15

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.

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

353 services277 patients

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

276 services276 patients

Biopsy of large bowel using a flexible endoscope 45380

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.

199 services199 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.

172 services165 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.

43 services43 patients

Initial hospital inpatient care per day, typically 30 minutes 99221

Initial hospital inpatient care refers to the first day of your stay in the hospital. This service typically includes a 30-minute check-up with a healthcare professional. They'll assess your health, discuss your condition, and plan your treatment. It's part of ensuring you receive the best possible care.

27 services26 patients

Follow-up hospital inpatient care per day, typically 35 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.

27 services18 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.

26 services26 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.

25 services25 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.

20 services20 patients

Established patient office or other outpatient visit, 40-54 minutes 99215

This 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.

16 services16 patients

Established patient office or other outpatient visit, 20-29 minutes 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.

15 services15 patients

Injection beneath lining of large bowel using a flexible endoscope 45381

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.

13 services13 patients

Upper gastrointestinal (GI) endoscopy for acid reflux NAN12

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.

0 services245 patients

Colonoscopy NAN13

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.

0 services464 patients

Hospital Affiliations CMS Care Compare 2

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

Advocate Condell Medical Center

Acute Care Hospitals · Libertyville, IL

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140202

Location801 S Milwaukee AveLibertyville, IL 60048 · Lake County

Emergency services Birthing friendly

Advocate Good Shepherd Hospital

Acute Care Hospitals · Barrington, IL

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number140291

Location450 West Highway 22Barrington, IL 60010 · Lake County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60048 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

$137.43 typical visit price

range $59.81 – $181.38

Typical copayment $34.35 (range $14.95 – $45.34)

Most-billed visit code 99204

Established Patient

$105.07 typical visit price

range $19.15 – $147.12

Typical copayment $26.26 (range $4.78 – $36.78)

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.

Other Providers at the Same Location NPPES 20

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

SHIN Y WEE MD

Anesthesiology (Pain Medicine)

1880 W WINCHESTER RD, 101
LIBERTYVILLE, IL 60048

Lake County (847) 281-9543

GEETHA M REDDY S C

Internal Medicine (Cardiovascular Disease)

1880 W WINCHESTER RD, SUITE 207
LIBERTYVILLE, IL 60048

Lake County (847) 816-3703

NORTHSHORE CENTER FOR GASTROENTEROLOGY, SC

Internal Medicine (Gastroenterology)

1880 W WINCHESTER RD, SUITE 201
LIBERTYVILLE, IL 60048

Lake County (847) 247-0187

WINCHESTER ENDOSCOPY CENTER

Internal Medicine (Gastroenterology)

1880 W WINCHESTER RD, SUITE 201
LIBERTYVILLE, IL 60048

Lake County (847) 247-0187

WINCHESTER AESTHETIC SURGICAL SUITE, SC

Clinic/Center (Ambulatory Surgical)

1880 W WINCHESTER RD, SUITE 107
LIBERTYVILLE, IL 60048

Lake County (847) 968-2401

DR. ANNETTE ARNOLD D.N.

Naprapath

1880 W WINCHESTER RD, SUITE 102
LIBERTYVILLE, IL 60048

Lake County (224) 558-8508

MILLENNIUM PAIN CENTER OF LAKE COUNTY

Clinic/Center (Pain)

1880 W WINCHESTER RD, #101
LIBERTYVILLE, IL 60048

Lake County (847) 281-9543

CARYN KEDZIERSKI

Audiologist

1880 W WINCHESTER RD, SUITE 103
LIBERTYVILLE, IL 60048

Lake County (847) 816-1116

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 John Tasiopoulos's NPI number?

The NPI number for John Tasiopoulos is 1346384492. It was assigned to this individual provider in the NPPES registry on February 19, 2007.

Where is John Tasiopoulos located?

John Tasiopoulos practices at 1880 W Winchester Rd Suite 201, Libertyville, IL 60048. The listed phone number is (847) 247-0187.

What is John Tasiopoulos's specialty?

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

Is John Tasiopoulos enrolled in Medicare?

Yes. John Tasiopoulos 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 John Tasiopoulos accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Home State Health list John Tasiopoulos 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 John Tasiopoulos affiliated with any hospitals?

According to CMS data, John Tasiopoulos is affiliated with Advocate Condell Medical Center and Advocate Good Shepherd Hospital.

When was this NPI record last updated?

The NPPES record for John Tasiopoulos was last updated on December 13, 2021. NPI Profile syncs with the weekly NPPES data releases published by CMS.