PAMELA VIRGINIA CONTRERAS CHAVEZ MD
NPI 1629573837
Internal Medicine - Hematology & Oncology in Chicago, IL

Q: What is Pamela Contreras Chavez's NPI number?

The NPI number for Pamela Contreras Chavez is 1629573837. It was assigned to this individual provider in the NPPES registry on March 28, 2018.

Q: What is Pamela Contreras Chavez's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Active since March 28, 2018PECOS EnrolledAccepts Medicare Assignment

836 W WELLINGTON AVE, CHICAGO, IL 60657(773) 975-1600(773) 296-5265 Get Directions Write a Review

NPPES record last updated: May 20, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Pamela Virginia Contreras Chavez Md NPPES

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

PAMELA VIRGINIA CONTRERAS CHAVEZ MD (NPI 1629573837) is an individual hematology & oncology provider in Chicago, Illinois, licensed in Illinois (036168545) and active in the NPI registry since March 2018. She is enrolled in Medicare PECOS, is affiliated with Rush Oak Park Hospital, and is a graduate of Other (2015).

NPPES Registry Identity

NPI1629573837

Entity TypeIndividualFemale

Primary Taxonomy207RH0003X

Provider Legal NamePAMELA VIRGINIA CONTRERAS CHAVEZCredential: MD

Location Address836 W WELLINGTON AVEChicago, IL 60657-5147

Mailing Address836 W Wellington AveChicago, IL 60657-5147 · (773) 975-1600 · Fax (773) 296-5265

Phone(773) 975-1600

Fax(773) 296-5265

Sole ProprietorYes

Medical School CMSOtherGraduated 2015

Enumeration DateMarch 28, 2018

Last NPPES UpdateMay 20, 2024

NPPES CertifiedMay 20, 2024

✔ NPI 1629573837 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians

Taxonomy Code207RH0003X

License✔ Licensed in IL · 036168545

Definition

An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

836 W WELLINGTON AVE, Chicago, IL 60657

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Pamela Virginia Contreras Chavez Md 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 ID3779836424

PECOS Enrollment IDI20240801001172

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.

Medicare Billing Reassignments

Medicare enrollment records show Pamela Contreras Chavez reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Rush University Medical Center

4.4 mi

Diagnostic Radiology

1620 W HARRISON ST
Chicago, IL 60612

Reassigned Medicare billing, Illinois enrollment
Medicare enrollment name: Rush University Medical Group
2,169 clinicians in this Medicare group

NPI 1184269425 (312) 563-4270

Rush Medical Group

4.4 mi

Internal Medicine

1620 W HARRISON ST
Chicago, IL 60612

Reassigned Medicare billing, Illinois enrollment
548 clinicians in this Medicare group

NPI 1467312850 (312) 942-5000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims

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.

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

17 services17 patients

Hospital Affiliations CMS Care Compare 2

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

Rush Oak Park Hospital

Acute Care Hospitals · Oak Park, IL

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number140063

Location520 S Maple AveOak Park, IL 60304 · Cook County

Emergency services

Rush University Medical Center

Acute Care Hospitals · Chicago, IL

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140119

Location1653 West Congress ParkwayChicago, IL 60612 · Cook County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60657 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

$183.39 typical visit price

range $60.08 – $183.39

Typical copayment $45.84 (range $15.02 – $45.84)

Most-billed visit code 99205

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.

DR. ROBERT R TURELLI JR. MD

Emergency Medicine

836 W WELLINGTON AVE
CHICAGO, IL 60657

Cook County (773) 296-5878

JAYME L. CAPPA

Speech-Language Pathologist

836 W WELLINGTON AVE
CHICAGO, IL 60657

Cook County (773) 296-7988

DR. CHIMUANYA OKOLI MD

Internal Medicine (Sleep Medicine)

836 W WELLINGTON AVE
CHICAGO, IL 60657

Cook County (773) 296-5424

DEBRA FARIDA

Nurse Anesthetist, Certified Registered

836 W WELLINGTON AVE
CHICAGO, IL 60657

Cook County (773) 975-1600

MALIK SAHOURI DO

Anesthesiology

836 W WELLINGTON AVE
CHICAGO, IL 60657

Cook County (773) 296-5187

SERGIO GUTIERREZ NUNEZ MD

Anesthesiology

836 W WELLINGTON AVE
CHICAGO, IL 60657

Cook County (773) 296-5187

MS. NOREEN MARIE SHERIDAN RD. LDN,CDE

Dietitian, Registered

836 W WELLINGTON AVE, FOOD AND NUTRITION DEPT.
CHICAGO, IL 60657

Cook County (773) 296-5912

ANN M HARVEY APN, CNP

Nurse Practitioner

836 W WELLINGTON AVE
CHICAGO, IL 60657

Cook County (773) 296-3646

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 Pamela Contreras Chavez's NPI number?

The NPI number for Pamela Contreras Chavez is 1629573837. It was assigned to this individual provider in the NPPES registry on March 28, 2018.

Where is Pamela Contreras Chavez located?

Pamela Contreras Chavez practices at 836 W Wellington Ave, Chicago, IL 60657. The listed phone number is (773) 975-1600.

What is Pamela Contreras Chavez's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Pamela Contreras Chavez enrolled in Medicare?

Yes. Pamela Contreras Chavez 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.

Which organizations bill Medicare for Pamela Contreras Chavez's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Pamela Contreras Chavez reassigns Medicare benefits to 2 organizations: Rush University Medical Center (Chicago, IL) and Rush Medical Group (Chicago, IL). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Pamela Contreras Chavez's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Pamela Contreras Chavez accept?

Health plans from Ambetter Health and Ambetter Health of Delaware list Pamela Contreras Chavez 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 Pamela Contreras Chavez affiliated with any hospitals?

According to CMS data, Pamela Contreras Chavez is affiliated with Rush Oak Park Hospital and Rush University Medical Center.

When was this NPI record last updated?

The NPPES record for Pamela Contreras Chavez was last updated on May 20, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.