Dr. Steven L Kahn , MD
Dermatology โข Chicago, IL
259 E Erie St, Suite 2350
Chicago, IL 606112987
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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NPI assigned on September 24, 2010; this date does not establish years in practice.
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Published CMS data list 2,344 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 17003 โ Destruction of precancer skin growth, 2-14 growths: 676 service units.
- 99213 โ Established patient outpatient office visit: 591 service units.
- 17000 โ Destruction of precancer skin growth, 1 growth: 271 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 15 records in the table ยท Guide: How to read Medicare Part B data
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Published CMS data list 641 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Ketoconazole โ 113 prescription fills, including refills.
- Triamcinolone Acetonide โ 102 prescription fills, including refills.
- Hydrocortisone โ 65 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 20 records in the table ยท Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 80% of clinicians listed under Dermatology in Chicago, IL (2024, 113 clinicians with data). Median for this group: 734. Middle half: 298 to 1,752.
Close to the middle for Medicare Part B services among clinicians listed under Dermatology in Illinois (2024, 405 clinicians with data). Median for this group: 2,033. Middle half: 899 to 4,119.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 1,382 in 2020 to 2,344 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
259 E Erie St
Suite 2350
Chicago, IL 606112987
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 1 group name: Northwestern Medical Faculty Foundation. 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
University Of Chicago, Pritzker School Of Medicine
2010
What Public CMS Data Show
Dermatology: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
702 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider, 2024.
Medicare-allowed amount
About $162,829 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
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, 2024.
Paid by Medicare
About $111,484 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
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, 2024.
30-day fills
800 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
$642,963 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
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 $160.35 in 2025
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.
It shows reported financial ties between this clinician and companies. You can ask your clinician about them.
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 2025.
Years since graduation
16 years (graduated 2010)
CMS Doctors and Clinicians data list 2010 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished 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
2010
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.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
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, โDoes your provider accept Medicare as full payment?โ
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.
Enrolled in Medicare (PECOS)
Dr. Kahn 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.
Can order Medicare-covered services
CMS lists Dr. Kahn 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.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
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.
Compared with the same specialty in Chicago and Illinois
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 80% of clinicians listed under Dermatology in Chicago, IL (2024, 113 clinicians with data). Median for this group: 734. Middle half: 298 to 1,752.
Close to the middle for clinicians listed under Dermatology in Illinois (2024, 405 clinicians with data). Median for this group: 2,033. Middle half: 899 to 4,119.
Medicare-allowed amount
A higher Medicare-allowed amount than 80% of clinicians listed under Dermatology in Chicago, IL (2024, 113 clinicians with data). Median for this group: $55,579. Middle half: $21,156 to $115,126.
Close to the middle for clinicians listed under Dermatology in Illinois (2024, 405 clinicians with data). Median for this group: $141,868. Middle half: $64,155 to $281,967.
Paid by Medicare
A higher Medicare payment amount than 80% of clinicians listed under Dermatology in Chicago, IL (2024, 113 clinicians with data). Median for this group: $38,442. Middle half: $14,571 to $82,347.
Close to the middle for clinicians listed under Dermatology in Illinois (2024, 405 clinicians with data). Median for this group: $99,602. Middle half: $44,437 to $204,261.
Medicare Part D prescriptions
More Part D prescriptions than 80% 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 60% 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 90% 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.
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.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services increased 70% from 1,382 in 2020 to 2,344 in 2024.
- 2020: 1,382
- 2021: 1,703
- 2022: 1,706
- 2023: 1,998
- 2024: 2,344
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Medicare-allowed amount
Medicare-allowed amount increased 71% from $95,180 in 2020 to $162,829 in 2024.
- 2020: $95,180
- 2021: $127,277
- 2022: $133,239
- 2023: $136,510
- 2024: $162,829
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Paid by Medicare
Paid by Medicare increased 76% from $63,462 in 2020 to $111,484 in 2024.
- 2020: $63,462
- 2021: $87,428
- 2022: $89,667
- 2023: $96,118
- 2024: $111,484
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 26% from 508 in 2020 to 641 in 2024.
- 2020: 508
- 2021: 560
- 2022: 604
- 2023: 534
- 2024: 641
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30-day fills
30-day fills increased 44% from 554 in 2020 to 800 in 2024.
- 2020: 554
- 2021: 596
- 2022: 706
- 2023: 657
- 2024: 800
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Part D drug cost
Part D drug cost increased 935% from $62,098 in 2020 to $642,963 in 2024.
- 2020: $62,098
- 2021: $21,576
- 2022: $187,369
- 2023: $432,192
- 2024: $642,963
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $117.39 in 2021 to $160.35 in 2025.
- 2021: $117.39
- 2022: $337.52
- 2023: $89.99
- 2025: $160.35
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), 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
Program year 2025 (payments made January 1 โ December 31, 2025): fewer than 11 records totaling $160.35.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Galderma Laboratories, L.P. |
Food and Beverage
In-kind items and services
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NEMLUVIO | General | $160.35 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ2023 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, 2017โ2024; 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 |
|---|---|---|---|---|
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17003
Destruction of precancer skin growth, 2-14 growths
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676 | 144 | $46.00 | $6.86 |
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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591 | 472 | $218.79 | $96.41 |
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17000
Destruction of precancer skin growth, 1 growth
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271 | 215 | $259.00 | $61.07 |
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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173 | 141 | $323.00 | $136.22 |
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11102
Biopsy of related skin growth, first growth
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153 | 140 | $363.00 | $97.48 |
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17110
Destruction of skin growth, 1-14 growths
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122 | 95 | $353.00 | $118.22 |
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99212
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more
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106 | 90 | $132.00 | $59.93 |
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11103
Biopsy of related skin growth, each additional growth
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47 | 36 | $153.00 | $52.96 |
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99203
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
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47 | 47 | $330.00 | $119.49 |
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G2211
Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's
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43 | 36 | $88.00 | $17.44 |
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99204
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
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28 | 28 | $505.00 | $178.67 |
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99202
New patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more
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27 | 27 | $225.00 | $76.81 |
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17262
Destruction of cancer skin growth of trunk, arms, or legs, 1.1-2.0 cm
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23 | 18 | $754.00 | $170.04 |
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11104
Punch biopsy, first skin growth
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22 | 22 | $363.00 | $131.86 |
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17004
Destruction of precancer skin growth, 15 or more growths
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15 | 13 | $853.00 | $177.62 |
Source: CMS Part B by Provider and Service, 2024; 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.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Ketoconazole | Ketoconazole | 113 | 3,325 | $3,287.42 | 65 |
| Triamcinolone Acetonide | Triamcinolone Acetonide | 102 | 2,589 | $1,450.98 | 68 |
| Hydrocortisone | Hydrocortisone | 65 | 1,194 | $444.29 | 54 |
| Clobetasol Propionate | Clobetasol Propionate | 51 | 1,496 | $2,483.36 | 29 |
| Clindamycin Phosphate | Clindamycin Phosphate | 42 | 1,275 | $1,554.22 | 20 |
| Tacrolimus | Tacrolimus | 41 | 760 | $3,942.03 | 13 |
| Ciclopirox | Ciclopirox | 26 | 803 | $723.93 | 11 |
| Minoxidil | Minoxidil | 23 | 1,620 | $206.52 | โ |
| Fluocinonide | Fluocinonide | 19 | 576 | $872.75 | 17 |
| Econazole Nitrate | Econazole Nitrate | 18 | 466 | $398.74 | โ |
| Metronidazole | Metronidazole | 17 | 434 | $720.99 | 12 |
| Mupirocin | Mupirocin | 16 | 266 | $102.52 | 14 |
| Betamethasone Dipropionate | Betamethasone Dipropionate | 16 | 370 | $780.02 | 11 |
| Valacyclovir | Valacyclovir Hcl | 16 | 868 | $452.55 | โ |
| Skyrizi Pen | Risankizumab-Rzaa | 14 | 1,064 | $280,150.13 | โ |
| Doxycycline Hyclate | Doxycycline Hyclate | 13 | 587 | $687.01 | โ |
| Methotrexate | Methotrexate Sodium | 13 | 420 | $70.57 | โ |
| Stelara | Ustekinumab | 13 | 1,078 | $197,516.74 | โ |
| Humira(Cf) Pen | Adalimumab | 12 | 336 | $146,937.00 | โ |
| Terbinafine Hcl | Terbinafine Hcl | 11 | 698 | $181.58 | โ |
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
NUCC Taxonomy Code: 207N00000X
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.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - DERMATOLOGY
I20140811001283
IL
3375760689
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
Northwestern Medical Faculty Foundation
675 N St Clair, Chicago, IL 606115975
Northwestern Medical Faculty Foundation
675 N Saint Clair St, Chicago, IL 606115975
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Internal Medicine - Geriatric Medicine
Doctor of Medicine (M.D.)
Nurse Practitioner
Advanced Practice Registered Nurse, Certified Nurse Practitioner
Internal Medicine
Doctor of Medicine (M.D.)
Nurse Practitioner
Advanced Practice Nurse
Internal Medicine - Endocrinology, Diabetes & Metabolism
Doctor of Medicine (M.D.)
Physician Assistant
Physician Assistant (Certified)
Career & Practice History
NPI enumerated September 24, 2010.
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.
NPI Administrative Meta
Other Dermatology Specialists in Chicago
- Dr. Ana Rodriguez, MD
- Dr. Sarah Adams, MD
- Dr. Shuai Xu, MD
- Smita Aggarwal
- Samantha Venkatesh
- Dr. Collette Ara Honore, MD
Mailing Address
259 E Erie St, Suite 2350
Chicago, IL 60611
Phone: 3129266000