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Dr. Stephen M Weeks , DDS

Dentist - Endodontics • Chicago, IL

Active NPI 1659665859 Individual Practitioner Male Practitioner
Practice location in NPPES

801 S Paulina St, Room 302l
Chicago, IL 606127210

Call 3123551661 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

801 S Paulina St
Room 302l

Chicago, IL 606127210

Telephone 3123551661
Organization at the Same NPPES Address or Phone
Board Of Trustees Of The University Of Illinois Facility NPI 1992873921

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Industry payments (Open Payments)

Fewer than 11 payment records totaling $15.38 in 2023

Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.

These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.

General: payments not tied to research, such as meals, travel, consulting or speaking fees.

A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.

Source: CMS Open Payments, program year 2023.

Guide: How to read an Open Payments record

NPI first issued

2011

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Medicare assignment not listed

CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Compared with the same specialty in Chicago and Illinois

50 active clinicians are listed under Dentist - Endodontics with a practice address in Chicago, IL (214 in Illinois).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Chicago

0% of these 50 clinicians have the CMS telehealth indicator.

0% of these 50 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Open Payments (2023), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo · Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments · Program Year 2023
Disclosure Year:

Program year 2023 (payments made January 1 – December 31, 2023): fewer than 11 records totaling $15.38.

Manufacturer Payment Nature Product Type Amount ($)
STERIS CORPORATION
Food and Beverage
In-kind items and services
— General $15.38

Source: CMS Open Payments, program year 2023, released June 30, 2026.

Specialties & License Numbers Reported to NPPES

Dentist - Endodontics Primary Specialty

NUCC Taxonomy Code: 1223E0200X

License # reported to NPPES IL 019022015

The branch of dentistry that is concerned with the morphology, physiology and pathology of the human dental pulp and periradicular tissues. Its study and practice encompass the basic and clinical sciences including biology of the normal pulp, the etiology, diagnosis, prevention and treatment of diseases and injuries of the pulp and associated periradicular conditions.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Illinois Department of Financial and Professional Regulation.
Look Up on State Board Site

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

1 listed
Dr. Alyson Koslow , DDS

Dentist - General Practice

NPI 1992927685

Doctor of Dental Surgery

Career & Practice History

NPI enumerated June 06, 2011.

No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.

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NPI Administrative Meta

NPI Number: 1659665859
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: June 06, 2011
Last Update: June 06, 2011
Sole Proprietor: No

Other Dentist - Endodontics Specialists in Chicago

All Dentist - Endodontics Specialists in Chicago

Mailing Address

801 S Paulina St, Room 302l

Chicago, IL 606127210

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.