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NICHOLAS G BAUR
NPI 1144783309
Internal Medicine - Gastroenterology in Olympia Fields, IL

Active since April 12, 2019PECOS EnrolledAccepts Medicare Assignment
20201 CRAWFORD AVE, OLYMPIA FIELDS, IL 60461(708) 747-4000 Get Directions Write a Review

NPPES record last updated: June 19, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Apr 13, 2026, May 23, 2025, Apr 12, 2019 (3 updates tracked since 2019).

About Nicholas G Baur NPPES

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

NICHOLAS G BAUR (NPI 1144783309) is an individual gastroenterology provider in Olympia Fields, Illinois, licensed in Illinois (036.175190) and active in the NPI registry since April 2019. He is enrolled in Medicare PECOS, is affiliated with Javon Bea Hospital, and is a graduate of Other (2019).

NPPES Registry Identity

NPI1144783309
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameNICHOLAS G BAUR
Location Address20201 CRAWFORD AVEOlympia Fields, IL 60461-1010
Mailing Address598 Balmoral LnInverness, IL 60067-4632 · (847) 507-5564
Phone(708) 747-4000
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateApril 12, 2019
Last NPPES UpdateJune 19, 20263 updates tracked since enumeration
NPPES CertifiedJune 19, 2026
✔ NPI 1144783309 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in IL · 036.175190
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 036.175190 (IL)
20201 CRAWFORD AVE, Olympia Fields, IL 60461
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include MercyCare Health Plans.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

Nicholas G Baur 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 ID1759618499
PECOS Enrollment IDI20250716001790
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.

Hospital Affiliations CMS Care Compare 3

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

Javon Bea Hospital

Acute Care Hospitals · Rockford, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140239
Location8201 E Riverside BlvdRockford, IL 61114 · Winnebago County
Emergency services Birthing friendly

Mercyhealth Hospital & Physician Clinic-Crystal La

Acute Care Hospitals · Crystal Lake, IL
OwnershipVoluntary non-profit - Private
CMS Certification Number140308
Location875 S Route 31Crystal Lake, IL 60014 · Mc Henry County
Emergency services

Mercy Harvard Hospital

Critical Access Hospitals · Harvard, IL
OwnershipVoluntary non-profit - Private
CMS Certification Number141335
Location901 S Grant StreetHarvard, IL 60033 · Mc Henry County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60461 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
$138.86 typical visit price
range $60.08 – $183.39
Typical copayment $34.71 (range $15.02 – $45.84)
Most-billed visit code 99204
Established Patient
$105.70 typical visit price
range $18.97 – $148.12
Typical copayment $26.42 (range $4.74 – $37.03)
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.

MR. PRANEET SATYENDRA MYLAVARAPU MD
Hospitalist
20201 CRAWFORD AVE
OLYMPIA FIELDS, IL 60461
Cook County (708) 855-7297
CHINTAN SHAH DO
Hospitalist
20201 CRAWFORD AVE
OLYMPIA FIELDS, IL 60461
Cook County (708) 747-4000
MICHAEL JOSEPH MULLAN II PTA
Physical Therapy Assistant
20201 CRAWFORD AVE
OLYMPIA FIELDS, IL 60461
Cook County (708) 852-2540
MARIA STEPHANIE TICSA
Student in an Organized Health Care Education/Training Program
20201 CRAWFORD AVE
OLYMPIA FIELDS, IL 60461
Cook County (708) 747-4000
DR. TONI SCOTT-TERRY MD
Obstetrics & Gynecology
20201 CRAWFORD AVE
OLYMPIA FIELDS, IL 60461
Cook County (708) 679-2160
DR. JOSEPH JOHN ZANGHI D.O.
Urology
20201 CRAWFORD AVE, ATTN: POSTDOCTORAL EDUCATION
OLYMPIA FIELDS, IL 60461
Cook County (708) 747-4000
CONSULTANTS IN PATHOLOGY SC
Pathology (Anatomic Pathology & Clinical Pathology)
20201 CRAWFORD AVE
OLYMPIA FIELDS, IL 60461
Cook County (708) 747-4000
SAMUEL L MACAGBA JR. MD
Anesthesiology
20201 CRAWFORD AVE
OLYMPIA FIELDS, IL 60461
Cook County (708) 503-3857

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 Nicholas Baur's NPI number?

The NPI number for Nicholas Baur is 1144783309. It was assigned to this individual provider in the NPPES registry on April 12, 2019.

Where is Nicholas Baur located?

Nicholas Baur practices at 20201 Crawford Ave, Olympia Fields, IL 60461. The listed phone number is (708) 747-4000.

What is Nicholas Baur's specialty?

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

Is Nicholas Baur enrolled in Medicare?

Yes. Nicholas Baur 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 Nicholas Baur accept?

Health plans from MercyCare Health Plans list Nicholas Baur 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 Nicholas Baur affiliated with any hospitals?

According to CMS data, Nicholas Baur is affiliated with Javon Bea Hospital, Mercyhealth Hospital & Physician Clinic-Crystal La and Mercy Harvard Hospital.

When was this NPI record last updated?

The NPPES record for Nicholas Baur was last updated on June 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.