Katherine Marie Mercy, MD
Micrographic Dermatologic Surgery (Mds) (CMS) · Naperville, IL
At a glance
2155 City Gate Ln Ste 225, Naperville, IL 60563-7770
Published activity: Melanoma (skin cancer) excision · Removal of skin cancer · Removal of skin lesions. View counts and coverage
NPPES record updated Oct 16, 2026. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
2155 City Gate Ln Ste 225Naperville, IL 60563-7770
Additional reported practice locations
1520 Bond StNaperville, IL 605632358
Phone: 6303577536
Fax: 6309040413 3253 S Harlem Ave Ste 1A
Berwyn, IL 604023073
Phone: 7087883885
Fax: 7087886884 2051 Plainfield Rd
Crest Hill, IL 604031865
Phone: 8157414343
Fax: 8157418660
Education & affiliations
- Medical / professional school
- Georgetown University School Of Medicine
- Graduation year
- 2008
- CMS specialties
- Micrographic Dermatologic Surgery (Mds)
Practice groups
Reported hospital affiliations
- Northwestern Medicine Central Dupage Hospital Winfield, IL
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
| Procedure category | Published Medicare activity |
|---|---|
| Melanoma (skin cancer) excision | 175 |
| Removal of skin cancer | 636 |
| Removal of skin lesions | 53 |
| Removal or shaving of skin growth | 1-10 |
| Skin biopsy | 39 |
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.
See payment purposes and reporting companies
Reported purposes
| Purpose | Amount |
|---|---|
| Food and beverage | $159.91 |
Reporting companies
| Company | Amount |
|---|---|
| UCB, INC. | $53.40 |
| BLUEPRINT MEDICINES CORPORATION | $32.81 |
| LILLY USA, LLC | $25.79 |
| JANSSEN BIOTECH, INC. | $24.16 |
| ORTHO DERMATOLOGICS, A DIVISION OF BAUSCH HEALTH US, LLC | $23.75 |
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Micrographic Dermatologic Surgery (Mds) (CMS)
- Taxonomy code
- 207ND0101X
- Enumeration date
- Jul 29, 2008
- Record updated
- Oct 16, 2026
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- MD
Reported taxonomies and licenses
207N00000X
License reported: 0101262264 VA
207N00000X
License reported: 036.127624 IL
207ND0101X
License reported: 0101262264 VA
207ND0101X · Primary
License reported: 036.127624 IL
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
2155 City Gate Ln Ste 225Naperville, IL 60563-7770
- Phone
- (630) 547-5040
- Fax
- (630) 305-0094
Mailing address
PO BOX 713260CHICAGO, IL 606771260
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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