DR. ELLEN DEBORAH MASON M.D.
NPI 1407876501
Internal Medicine in Chicago, IL

Active since July 20, 2006PECOS Enrolled
84.57/100
CMS Quality Rating
1901 W HARRISON ST, JOHN H. STROGER JR. HOSPITAL OF COOK COUNTY, CHICAGO, IL 60612(312) 689-4654 Get Directions Write a Review

NPPES record last updated: April 27, 2021. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. Ellen Deborah Mason M.d. NPPES

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

DR. ELLEN DEBORAH MASON M.D. (NPI 1407876501) is an individual internal medicine provider in Chicago, Illinois, licensed in Illinois (036066843) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1407876501
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. ELLEN DEBORAH MASONCredential: M.D.
Location Address1901 W HARRISON ST, JOHN H. STROGER JR. HOSPITAL OF COOK COUNTYChicago, IL 60612-3714
Mailing Address1660 N Hudson Ave, Apt. 3-cChicago, IL 60614-5671 · (312) 689-4654
Sole ProprietorNo
Enumeration DateJuly 20, 2006
Last NPPES UpdateApril 27, 2021
NPPES CertifiedApril 27, 2021
NPI 1407876501 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in IL · 036066843
Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

1901 W HARRISON ST, Chicago, IL 60612

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

Dr. Ellen Deborah Mason M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

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.

Emergency Medicine
1901 W HARRISON ST
CHICAGO, IL 60612
Internal Medicine
1901 W HARRISON ST
CHICAGO, IL 60612
Obstetrics & Gynecology (Gynecology)
1901 W HARRISON ST
CHICAG, IL 60612
Internal Medicine
1901 W HARRISON ST
CHICAGO, IL 60612
Pharmacy (Clinic Pharmacy)
1901 W HARRISON ST
CHICAGO, IL 60612
Emergency Medicine
1901 W HARRISON ST
CHICAGO, IL 60612
Physician Assistant
1901 W HARRISON ST
CHICAGO, IL 60612
General Acute Care Hospital
1901 W HARRISON ST
CHICAGO, IL 60612

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 Ellen Mason's NPI number?

The NPI number for Ellen Mason is 1407876501. It was assigned to this individual provider in the NPPES registry on July 20, 2006.

Where is Ellen Mason located?

Ellen Mason practices at 1901 W Harrison St John H. Stroger Jr. Hospital Of Cook County, Chicago, IL 60612. The listed phone number is (312) 689-4654.

What is Ellen Mason's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Ellen Mason enrolled in Medicare?

Yes. Ellen Mason is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Ellen Mason was last updated on April 27, 2021. NPI Profile syncs with the weekly NPPES data releases published by CMS.