Katherine Marie Mercy, MD
MOHS-Micrographic Surgery Physician · Naperville, IL
Katherine Marie Mercy, MD is a mohs-micrographic surgery physician with a practice address in Naperville, Illinois, and NPI 1134385255, issued on Jul 29, 2008. Check the license (Illinois 036.127624, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Katherine Marie Mercy
- Credential
- MD
- Primary taxonomy
- MOHS-Micrographic Surgery Physician 207ND0101X
- License numbers
- 036.127624 IL
0101262264 VA
Self-reported in NPPES; status is on the state search - Practice location
- 1520 Bond St, Naperville, IL 60563
- Phone
- (630) 357-7536
- Enumerated
- Jul 29, 2008
- Record last updated
- Jul 25, 2022
- Fax
- (630) 904-0413
- Medicare enrollment
- Enrolled (PECOS I20220809001724); accepts Medicare assignment
- Medical or professional school
- Georgetown University School Of Medicine, 2008
- Entity
- Type 1 · individual
8 nearest mohs-micrographic surgery physician records → All 43 in Illinois → Look up another NPI →
Verify Katherine Marie Mercy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036.127624Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
38% fewer Medicare Part D claims than the average mohs-micrographic surgery physician in 2024
353 Medicare Part D claims for 204 beneficiaries, against an average of 570 among the 1,396 providers of this specialty who prescribed in Part D. 51 claims were for opioids.
Most prescribed
- Cephalexin111 claims
- Doxycycline Hyclate53 claims
- Timolol Maleate31 claims
- Hydrocodone-Acetaminophen30 claims
- Mupirocin28 claims
- Tramadol Hcl21 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 83.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $146.11
6 payments; by number, the most common kind was food and beverage; the largest payer was Genzyme Corporation. The 1,074 providers of this specialty with any payment received $4,075.23 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Forefront Dermatology SCNaperville, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katherine Marie Mercy among 43 mohs-micrographic surgery physician records in Illinois
Katherine Marie Mercy, MD is one of 43 mohs-micrographic surgery physician records with a practice address in Illinois. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 58% of them.
- NPI issued2008 · 58% of these records are older, 35% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 84% of these records are
- Graduated2008 · median 2002 among the 36 with a school on file
- Record last updated2022 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ND0101X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
MOHS-Micrographic Surgery Physician providers in Illinois
There are 43 mohs-micrographic surgery physician records in Illinois.
All 43 in Illinois → Every provider in Naperville → MOHS-Micrographic Surgery Physician nationwide →
The 8 mohs-micrographic surgery physician records with the nearest ZIP codes
- Mariam Mafee, M.D.Naperville, IL 605631710328851
- Amy Orsini, MDNaperville, IL 605631013933431
- Maria Quintanilla-Dieck, M.D.Naperville, IL 605631457518490
- Linna Gali, MDLisle, IL 605321619438637
- Omeed Memar, MDChicago, IL 606021538200308
- Steven Goulder, MDHinsdale, IL 605211770560831
- Melanie Zahner, MDHinsdale, IL 605211487655684
- Scott Zahner, MDHinsdale, IL 605211629079462
Common questions
What is Katherine Marie Mercy, MD's NPI number?
Katherine Marie Mercy, MD's National Provider Identifier (NPI) is 1134385255, issued on Jul 29, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Marie Mercy, MD located?
The NPPES record lists a practice address at 1520 Bond St, Naperville, IL, 60563. Phone: (630) 357-7536. Providers update this record themselves, so call before visiting.
How can I verify Katherine Marie Mercy, MD's license?
NPPES lists Illinois license number 036.127624, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Katherine Marie Mercy, MD prescribe under Medicare Part D?
In 2024, Katherine Marie Mercy, MD had 353 Medicare Part D claims for 204 beneficiaries; the average among mohs-micrographic surgery physician prescribers was 570. Part D covers Medicare prescriptions only.
What is Katherine Marie Mercy, MD's MIPS final score?
The 2023 MIPS final score is 83.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.