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Dr. Stefan Vanderweil , MD

Dermatology โ€ข Chicago, IL

Active NPI 1811251465 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

676 N Saint Clair St, Arkes 1600
Chicago, IL 606112927

Call 3126958106 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

676 N Saint Clair St
Arkes 1600

Chicago, IL 606112927

Telephone 3126958106
Organization at the Same NPPES Address or Phone
Orthopedic Associates Of Chicago Facility NPI 1376515866

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

Other Listings in Public Data

CMS Doctors and Clinicians lists 1 group name: Permanente Medical Group Inc. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Medical School

University Of Massachusetts Medical School

Graduation Year

2012

Medicare-allowed amount

About $69,375 in 2018

The total amount Medicare approved for these services in 2018. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

What this does not show: Medicare-allowed amount

This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2018.

Paid by Medicare

About $49,885 in 2018

The part of the Medicare-allowed amount that Medicare itself paid in 2018, after patients' deductibles and coinsurance.

What this does not show: Paid by Medicare

This is not the clinician's income and not a measure of quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2018.

30-day fills

2,335 standardized 30-day fills in 2024

CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.

What this does not show: 30-day fills

It is not a count of patients and not a measure of quality.

Part D drug cost

$535,409 in 2024

The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.

What this does not show: Part D drug cost

A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.

Source: CMS, Medicare Part D Prescribers โ€“ by Provider and Drug, 2024.

Industry payments (Open Payments)

Fewer than 11 payment records totaling $64.58 in 2019

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 2019.

Guide: How to read an Open Payments record

Years since graduation

14 years (graduated 2012)

CMS Doctors and Clinicians data list 2012 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2012

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.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

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, โ€œDoes your provider accept Medicare as full payment?โ€

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

Enrolled in Medicare (PECOS)

Dr. Vanderweil has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Dr. Vanderweil as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Chicago and Illinois

Billing and prescribing volume is not a quality rating.

Medicare Part D prescriptions

More Part D prescriptions than 95% of clinicians listed under Dermatology in Chicago, IL (2024, 146 clinicians with data). Median for this group: 223. Middle half: 94 to 508.

More Part D prescriptions than 90% of clinicians listed under Dermatology in Illinois (2024, 468 clinicians with data). Median for this group: 471. Middle half: 165 to 904.

Part D drug cost

A higher Part D drug cost than 90% of clinicians listed under Dermatology in Chicago, IL (2024, 146 clinicians with data). Median for this group: $50,146. Middle half: $2,705 to $189,548.

A higher Part D drug cost than 85% of clinicians listed under Dermatology in Illinois (2024, 468 clinicians with data). Median for this group: $69,576. Middle half: $5,709 to $275,598.

Medicare Part B

Comparisons use 2024 data. The latest CMS data for Dr. Vanderweil are from 2018.

233 active clinicians are listed under Dermatology with a practice address in Chicago, IL (647 in Illinois).

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

Telehealth indicator in Chicago

10.3% of these 233 clinicians have the CMS telehealth indicator.

54.9% of these 233 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (2018), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2019), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo ยท 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 ยท Program Year 2019

Program year 2019 (payments made January 1 โ€“ December 31, 2019): fewer than 11 records totaling $64.58.

Manufacturer Payment Nature Product Type Amount ($)
Celgene Corporation
Food and Beverage
Cash or cash equivalent
Otezla General $64.58

Source: CMS Open Payments, program year 2019, released June 30, 2026.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2018.

CMS Part B ยท Data Year 2018
Reporting Year:

CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ€“2017 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ€“ by Provider and Service data, 2017โ€“2018; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

HCPCS Code Services Patients Submitted Charge Medicare Allowed
96910 Therapy procedure using ultraviolet radiation with tar or petroleum jelly application
217 11 $226.00 $118.24
17003 Destruction of precancer skin growth, 2-14 growths
181 40 $45.38 $5.77
99213 Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
142 118 $219.00 $76.10
99202 New patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more
83 83 $225.87 $78.89
11100 Biopsy of single growth of skin and/or tissue
74 70 $362.49 $108.56
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
72 64 $323.00 $112.13
17000 Destruction of precancer skin growth, 1 growth
62 55 $258.18 $56.82
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
29 29 $330.00 $115.47
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more
29 28 $132.00 $46.34
11101 Biopsy of each additional growth of skin and/or tissue
28 22 $153.00 $35.58

Source: CMS Part B by Provider and Service, 2018; services under 11 beneficiaries omitted by CMS. Privacy limits

Submitted charges are billed amounts, not a price quote for your visit.

Medicare Part D Prescribing Profile & Medications

Medicare Part D prescriptions filled, including refills, in 2024.

CMS Part D ยท Data Year 2024
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Minoxidil Minoxidil 231 20,430 $3,484.65 86
Clobetasol Propionate Clobetasol Propionate 181 5,193 $5,226.42 85
Fluorouracil Fluorouracil 146 3,927 $5,787.06 127
Fluocinonide Fluocinonide 106 3,076 $1,506.17 56
Hydrocortisone Hydrocortisone 99 2,459 $1,476.16 57
Finasteride Finasteride 77 7,680 $1,203.71 30
Ketoconazole Ketoconazole 56 1,643 $855.96 26
Triamcinolone Acetonide Triamcinolone Acetonide 49 1,496 $820.02 25
Doxycycline Monohydrate Doxycycline Monohydrate 46 2,202 $1,515.31 25
Mometasone Furoate Mometasone Furoate 43 1,270 $2,188.70 30
Cosentyx Sensoready (2 Pens) Secukinumab 43 1,193 $147,113.70 โ€”
Mupirocin Mupirocin 42 871 $568.96 22
Calcipotriene Calcipotriene 41 1,197 $5,275.35 29
Otezla Apremilast 41 1,224 $181,701.83 โ€”
Betamethasone Diprop Augmented Betamethasone/Propylene Glyc 36 1,049 $1,727.60 14
Pimecrolimus Pimecrolimus 36 1,044 $3,999.74 17
Tacrolimus Tacrolimus 33 945 $2,896.52 18
Dupixent Pen Dupilumab 33 860 $122,508.30 โ€”
Prednisone Prednisone 29 1,045 $329.08 16
Ciclopirox Ciclopirox 29 870 $536.69 14
Metronidazole Metronidazole 23 613 $358.98 14
Imiquimod Imiquimod 19 581 $499.41 12
Methotrexate Methotrexate Sodium 16 1,165 $277.75 โ€”
Gabapentin Gabapentin 15 830 $323.78 โ€”
Econazole Nitrate Econazole Nitrate 15 450 $543.94 โ€”

(top 25 shown)

Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits

Specialties & License Numbers Reported to NPPES

Dermatology Primary Specialty

NUCC Taxonomy Code: 207N00000X

License # reported to NPPES IL 036.140140

A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.

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

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - DERMATOLOGY

Medicare Enrollment ID

I20181127001788

Enrollment State Jurisdiction

CA

PECOS Control ID

1759512072

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Permanente Medical Group Inc

3900 Lakeville Hwy, Petaluma, CA 949545698

Phone: 7077653900

Clinicians Sharing This Practice Address or Phone

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

25 listed
Alexander Blank , PA-C

Physician Assistant

NPI 1356961015

Physician Assistant (Certified)

NPI 1003875741

Doctor of Medicine (M.D.)

Dr. Lu Chen , MD

Dermatology

NPI 1124445077

Doctor of Medicine (M.D.)

NPI 1689856049

Doctor of Medicine (M.D.), Doctor of Philosophy (Ph.D.)

NPI 1598931719

Doctor of Medicine (M.D.)

NPI 1851656516

Doctor of Medicine (M.D.)

Career & Practice History

NPI enumerated June 28, 2012.

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.

No reviews have been published yet. Leave a review.

NPI Administrative Meta

NPI Number: 1811251465
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: June 28, 2012
Last Update: September 11, 2025
Sole Proprietor: Yes

Other Dermatology Specialists in Chicago

All Dermatology Specialists in Chicago

Mailing Address

680 N Lake Shore Dr, Suite 1000

Chicago, IL 606114546

Phone: 3126959797

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.