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Micrographic Dermatologic Surgery (MDS)

Karen L. Connolly, MD

Sees patients in Basking Ridge, NJ · New Jersey

Summary

Dr. Karen L. Connolly, MD is a dermatologic surgeon at 136 Mountain View Blvd, Basking Ridge, NJ 07920. Phone: (908) 542-3000. Accepts Medicare assignment. In 2024, Karen L. Connolly had 251 Original Medicare patients and 1,160 services. NPI 1801116389. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Dermatologic surgeon (Medicare lists Micrographic Dermatologic Surgery (MDS))
  • Address: 136 Mountain View Blvd, Basking Ridge, NJ 07920 · Directions (1 more location)
  • Phone: (908) 542‑3000
  • Medicare: Accepts Medicare assignment
  • Group practice: Memorial Sloan Kettering Cancer Center at Basking Ridge New Jersey
  • Medical school: Jefferson Medical College Of Thomas Jefferson University · graduated 2010 (16 years since medical school)
  • Gender (as listed): Female
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Karen L. Connolly, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Karen L. Connolly accept Medicare assignment?
Yes. Medicare's clinician data says Karen L. Connolly 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 Karen L. Connolly see?
In 2024, CMS data shows 251 Original Medicare patients and 1,160 services for Karen L. Connolly. This counts Original Medicare only and measures volume, not quality.
What is Karen L. Connolly's NPI number?
1801116389. 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 Karen L. Connolly, 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 patients251
Services billed to Medicare1,160
Different services or procedures82
Participating Medicare providerYes
Average age of these patients77

Most frequent services

  1. Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, 1-5 tissue blocks (17311)165 services
  2. Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, each additional stage, 1-5 tissue blocks (17312)139 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)131 services
  4. Biopsy of related skin growth, first growth (11102)57 services
  5. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)55 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 blood pressure75%
  • High cholesterol75%
  • Arthritis49%
  • Ischemic heart disease41%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)35%
  • Diabetes25%

Practice locations

Addresses where Karen L. Connolly is enrolled with Medicare (CMS data updated October 2, 2026).

  • 136 Mountain View BlvdBasking Ridge, NJ 07920
  • 136 Mountainview BlvdBasking Ridge, NJ 07920 (908) 542‑3000

Group practices

Medicare enrollment lists Karen L. Connolly as a member of this group (CMS data updated October 2, 2026).

  • Memorial Sloan Kettering Cancer Center at Basking Ridge New Jersey229 clinicians in the group

Specialties

Find other Micrographic Dermatologic Surgery (MDS) doctors in New Jersey →

Other dermatologic surgeons in New Jersey

Clinicians with the same Medicare primary specialty in New Jersey — not a recommendation.

All dermatologic surgeons in New Jersey →

Other clinicians in Memorial Sloan Kettering Cancer Center at Basking Ridge New Jersey

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolJefferson Medical College Of Thomas Jefferson University
Graduation year2010 (16 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1801116389
CorrectionsReport 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

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians