Quick answers
- Does Jennifer A. Croix accept Medicare assignment?
- Yes. Medicare's clinician data says Jennifer A. Croix accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Jennifer A. Croix see?
- In 2024, CMS data shows 185 Original Medicare patients and 1,832 services for Jennifer A. Croix. This counts Original Medicare only and measures volume, not quality.
- What is Jennifer A. Croix's NPI number?
- 1144596628. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Jennifer A. Croix, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 185 |
|---|---|
| Services billed to Medicare | 1,832 |
| Different services or procedures | 34 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Destruction of precancer skin growth, 2-14 growths (17003)295 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)125 services
- Destruction of precancer skin growth, 1 growth (17000)110 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)67 services
- Biopsy of related skin growth, first growth (11102)65 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol72%
- High blood pressure52%
- Arthritis46%
- Osteoporosis25%
- Ischemic heart disease17%
- Anxiety16%
Practice locations
Addresses where Jennifer A. Croix is enrolled with Medicare (CMS data updated October 2, 2026).
- 40 Skokie Blvd, Suite 500Northbrook, IL 60062 (224) 282‑7800
- 515 N State St, Suite 900Chicago, IL 60654 (312) 245‑9965
Group practices
Medicare enrollment lists Jennifer A. Croix as a member of these groups (CMS data updated October 2, 2026).
- Chicago Cosmetic Surgery and Dermatology SC8 clinicians in the group
- The Derm Collective North Shore PLLC6 clinicians in the group
Specialties
- Dermatologyprimary
Other dermatologists in Northbrook
Clinicians with the same Medicare primary specialty in Northbrook, IL — not a recommendation.
Other clinicians in Chicago Cosmetic Surgery and Dermatology SC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Illinois Medical College |
| Graduation year | 2012 (14 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1144596628 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians