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OSCAR ARTURO RIVAS CHICAS M.D.
NPI 1417289570
Internal Medicine - Gastroenterology in Chicago, IL

Active since January 31, 2010PECOS EnrolledAccepts Medicare Assignment
84.57/100
CMS Quality Rating
1900 W POLK ST, 15TH FLOOR, CHICAGO, IL 60612(312) 504-3250 Get Directions Write a Review

NPPES record last updated: April 29, 2021. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Apr 29, 2021, Sep 14, 2020 (2 updates tracked since 2020).

About Oscar Arturo Rivas Chicas M.d. NPPES

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

OSCAR ARTURO RIVAS CHICAS M.D. (NPI 1417289570) is an individual gastroenterology provider in Chicago, Illinois, licensed in Illinois (036-125090) and active in the NPI registry since January 2010. He is enrolled in Medicare PECOS, is affiliated with John H Stroger Jr Hospital, and is a graduate of Other (2004).

NPPES Registry Identity

NPI1417289570
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameOSCAR ARTURO RIVAS CHICASCredential: M.D.
Location Address1900 W POLK ST, 15TH FLOORChicago, IL 60612-3723
Mailing Address1900 W Polk St, 15th FloorChicago, IL 60612-3723 · (312) 504-3250
Phone(312) 504-3250
Sole ProprietorYes
Medical School CMSOtherGraduated 2004
Enumeration DateJanuary 31, 2010
Last NPPES UpdateApril 29, 20212 updates tracked since enumeration
NPPES CertifiedApril 29, 2021
✔ NPI 1417289570 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 · 036-125090
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 125052285 (IL)
1900 W POLK ST, Chicago, IL 60612
Open in Google Maps ↗

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

Oscar Arturo Rivas Chicas 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 ID648439075
PECOS Enrollment IDI20120305000403
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 5

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.

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.
31 services30 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.
27 services27 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.
24 services24 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.
22 services21 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.
13 services12 patients

Hospital Affiliations CMS Care Compare

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

John H Stroger Jr Hospital

Acute Care Hospitals · Chicago, IL
2/5 CMS rating
OwnershipGovernment - Local
CMS Certification Number140124
Location1901 W Harrison StChicago, IL 60612 · Cook County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60612 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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

84.57/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality60.25
Promoting Interoperability100
Improvement Activities40
Cost67

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.

DR. CARMENCITA GARCIA SENSENG MD
Pathology (Anatomic Pathology & Clinical Pathology)
1900 W POLK ST
CHICAGO, IL 60612
Cook County (312) 864-7561
DR. REBECCA BOWER-LEWIS M.D.
Emergency Medicine
1900 W POLK ST, SUITE 1053
CHICAGO, IL 60612
Cook County (312) 864-0060
JOHN STROGER JR. HOSPITAL OF THE COOK COUNTY
General Acute Care Hospital
1900 W POLK ST, DEPT OF EM 10TH FLOOR
CHICAGO, IL 60612
Cook County (312) 864-0060
SARAH AHMED CRNA
Nurse Anesthetist, Certified Registered
1900 W POLK ST
CHICAGO, IL 60612
Cook County (312) 864-0452
MS. JENNIFER MARY DUFF APN
Nurse Practitioner (Pediatrics)
1900 W POLK ST, 1143
CHICAGO, IL 60612
Cook County (312) 864-4150
DR. MATTHEW Y RHEE M.D.
Emergency Medicine
1900 W POLK ST, DEPARTMENT OF EMERGENCY MEDICINE
CHICAGO, IL 60612
Cook County (312) 864-0062
IRENE STEPHANIE ALEXANDRA ALUEN METZNER M.D.
Internal Medicine
1900 W POLK ST
CHICAGO, IL 60612
Cook County (312) 864-4462
DR. NIVA SHAKYA M.D.
Pediatrics
1900 W POLK ST
CHICAGO, IL 60612
Cook County (312) 864-4505

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 Oscar Rivas Chicas's NPI number?

The NPI number for Oscar Rivas Chicas is 1417289570. It was assigned to this individual provider in the NPPES registry on January 31, 2010.

Where is Oscar Rivas Chicas located?

Oscar Rivas Chicas practices at 1900 W Polk St 15th Floor, Chicago, IL 60612. The listed phone number is (312) 504-3250.

What is Oscar Rivas Chicas's specialty?

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

Is Oscar Rivas Chicas enrolled in Medicare?

Yes. Oscar Rivas Chicas 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 Oscar Rivas Chicas accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Home State Health list Oscar Rivas Chicas 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 Oscar Rivas Chicas affiliated with any hospitals?

According to CMS data, Oscar Rivas Chicas is affiliated with John H Stroger Jr Hospital.

When was this NPI record last updated?

The NPPES record for Oscar Rivas Chicas was last updated on April 29, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years 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.