Dr. Todd A. Johnson, M.D.
Mohs Surgery (MOHS-Micrographic Surgery Physician)
1765 N Elston Ave, Suite 110
Chicago, IL 60642
Who else practices at this address →
Cook County includes primary care (3% of residents) and mental health (4% of residents) shortage areas. About shortage areas
- Medicare participating
At a glance
- Medical school
- University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) (2001)
- Years since graduation
- 25
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 557
Licensed in Illinois since 2003, according to the Illinois Department of Financial and Professional Regulation. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 2001Medical school: University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb)
- 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
MOHS-Micrographic Surgery Physician primary
IL license 036110291 (first issued 2003; active) -
Dermatology Physician
IL license 036110291 (first issued 2003; active)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Medical groups
- Vitalskin Medical Group Il PLLC (56 clinicians)
- North Shore Center for Medical Aesthetics LTD (7 clinicians)
- The Derm Collective North Shore PLLC (6 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 557
- Services billed
- 5,259
- Patients’ average age
- 75
| Service | Times | Patients |
|---|---|---|
| Destruction of precancer skin growth, 2-14 growths | 1,458 | 249 |
| Established patient office or other outpatient visit, 20-29 minutes | 587 | 353 |
| Destruction of precancer skin growth, 1 growth | 582 | 329 |
| Biopsy of related skin growth, first growth | 370 | 264 |
| Established patient office or other outpatient visit, 30-39 minutes | 231 | 158 |
| Destruction of skin growth, 1-14 growths | 225 | 178 |
| Biopsy of related skin growth, each additional growth | 180 | 112 |
| Established patient office or other outpatient visit, 10-19 minutes | 117 | 99 |
| Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, 1-5 tissue blocks | 111 | 80 |
| Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, each additional stage, 1-5 tissue blocks | 70 | 44 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Medicare prescriptions
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Payments from drug and device companies
In 2025, 15 companies reported 43 payments worth $997 in total to this clinician.
| Regeneron Healthcare Solutions, Inc. | $286 |
|---|---|
| AbbVie Inc. | $279 |
| Mayne Pharma Commercial LLC | $64.59 |
| Galderma Laboratories, L.P. | $56.29 |
| Novartis Pharmaceuticals Corporation | $54.11 |
| Pfizer Inc. | $51.97 |
| Genzyme Corporation | $45.88 |
| Janssen Biotech, Inc. | $29.11 |
| Food and Beverage | $917 |
|---|---|
| Education | $80.86 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Regeneron Healthcare Solutions, Inc. Aug 20, 2025 | Education DUPIXENT · IMMUNOLOGY AND INFLAMMATION · in-kind | $80.86 |
Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.