Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Dermatology

Nancy Nkansah-Mahaney, MD

Works at hospitals in York, PA · Pennsylvania

Summary

Dr. Nancy Nkansah-Mahaney, MD is a dermatologist at 1447 York Rd, Suite 301, Lutherville, MD 21093. Phone: (410) 252-9090. Accepts Medicare assignment. In 2024, Nancy Nkansah-Mahaney had 315 Original Medicare patients and 1,170 services. NPI 1659356814. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Dermatologist (Medicare lists Dermatology)
  • Address: 1447 York Rd, Suite 301, Lutherville, MD 21093 · Directions (1 more location)
  • Phone: (410) 252‑9090
  • Medicare: Accepts Medicare assignment
  • Hospital: WellSpan York Hospital
  • Group practice: WellSpan Medical Group (+1 more)
  • Medical school: graduated 2019 (7 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Nancy Nkansah-Mahaney, 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 Nancy Nkansah-Mahaney accept Medicare assignment?
Yes. Medicare's clinician data says Nancy Nkansah-Mahaney 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 Nancy Nkansah-Mahaney see?
In 2024, CMS data shows 315 Original Medicare patients and 1,170 services for Nancy Nkansah-Mahaney. This counts Original Medicare only and measures volume, not quality.
What is Nancy Nkansah-Mahaney's NPI number?
1659356814. 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 Nancy Nkansah-Mahaney, 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 patients315
Services billed to Medicare1,170
Different services or procedures40
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Destruction of precancer skin growth, 2-14 growths (17003)177 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)164 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)163 services
  4. Biopsy of related skin growth, first growth (11102)117 services
  5. Destruction of precancer skin growth, 1 growth (17000)101 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 cholesterol75%
  • High blood pressure70%
  • Arthritis49%
  • Diabetes28%
  • Anxiety25%
  • Ischemic heart disease23%

Hospitals where Nancy Nkansah-Mahaney works

Medicare's Facility Affiliation Data lists Nancy Nkansah-Mahaney at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • WellSpan York HospitalYork, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390046

Practice locations

Addresses where Nancy Nkansah-Mahaney is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Nancy Nkansah-Mahaney as a member of these groups (CMS data updated October 2, 2026).

  • WellSpan Medical Group2,480 clinicians in the group
  • Skin Care Specialty Physicians LLC17 clinicians in the group

Specialties

Find other Dermatology doctors in Maryland →

Other dermatologists in Lutherville

Clinicians with the same Medicare primary specialty in Lutherville, MD — not a recommendation.

All dermatologists in Lutherville →

Other clinicians in WellSpan Medical Group

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

Clinician information

CredentialMD
Graduation year2019 (7 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1659356814
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. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians