Dr. Lauren Janczewski, MD
- Part D claims, 2021
- 13
- Industry payments
- $1,512
- State license
- 1
- Year NPI issued
- 2019
- Practice address
- 251 E Huron St, Chicago, IL 60611-2908
- Practice phone
- Call (312) 227-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Janczewski's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Lauren Janczewski is a general surgeon in Chicago, Illinois
Dr. Janczewski practices in Chicago, Illinois.
Dr. Janczewski's NPI, 1376003228, was assigned on March 25, 2019. Dr. Janczewski holds Illinois license 125.074145.
- NPI
- 1376003228NPI Registry (opens in a new tab)
- NPI enumeration date
- March 25, 2019
- NPI status
- Active
- Practice phone
- (312) 227-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Lauren Janczewski's practice address is in Chicago, Illinois
Dr. Janczewski's practice address in the NPI Registry is 251 E Huron St, Chicago, IL 60611-2908. The practice phone is (312) 227-4000.
- NPI Registry address251 E Huron St, Chicago, IL 60611-2908Phone(312) 227-4000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Lauren Janczewski's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Janczewski practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Janczewski's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Lauren Janczewski is one of 1,217 general surgeons in Illinois
Surgery is Dr. Janczewski's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Janczewski is licensed in Illinois.
Specialties and state licenses
- Surgery, IllinoisPrimary
General surgeons near Dr. Janczewski
Counts of general surgeons with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Lauren Janczewski wrote 13 Medicare Part D claims in 2021
In 2021, Dr. Janczewski wrote 13 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $24 in total drug cost.
Dr. Janczewski's most prescribed drugs by claims, 2021
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Lauren Janczewski received $1,512 in industry payments from 2021 to 2025
CMS Open Payments shows 4 general payments to Dr. Janczewski from 3 drug and device companies from 2021 to 2025. Education make up the largest share, 86% of the total. Intuitive Surgical, Inc. paid the most, $1,000.
General payments to Dr. Janczewski by program year, 2021 to 2025
General payments to Dr. Janczewski by kind, 2021 to 2025
- Education$1,30586%
- Food and beverage$20714%
Companies that paid Dr. Janczewski the most, 2021 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Lauren Janczewski's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Lauren Janczewski
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Lauren Janczewski's NPI number?
Dr. Lauren Janczewski's NPI number is 1376003228. It was assigned on March 25, 2019, and it is active in the NPI Registry.
What kind of doctor is Dr. Lauren Janczewski?
Dr. Lauren Janczewski is a general surgeon in Chicago, Illinois. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Lauren Janczewski practice?
Dr. Janczewski practices at 251 E Huron St, Chicago, IL 60611-2908.
What is Dr. Lauren Janczewski's office phone number?
The practice phone on file for Dr. Janczewski is (312) 227-4000.
What is Dr. Lauren Janczewski's medical license number?
Dr. Janczewski holds Illinois license 125.074145.
What drugs does Dr. Lauren Janczewski prescribe most?
In 2021 Medicare Part D data, Dr. Janczewski's most prescribed drugs by claims were Tramadol HCl.
Has Dr. Lauren Janczewski received payments from drug or device companies?
CMS Open Payments shows $1,512 in general payments to Dr. Janczewski from 3 companies from 2021 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Lauren Janczewski been practicing?
Dr. Janczewski's NPI was assigned in 2019.
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