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Dermatology

Karin I. Harp, MD

Works at hospitals in Northridge, CA · California

Summary

Dr. Karin I. Harp, MD is a dermatologist at 32144 Agoura Rd, Suite 112, Westlake Village, CA 91361. Phone: (818) 889-2739. Accepts Medicare assignment. In 2024, Karin I. Harp had 516 Original Medicare patients and 5,212 services. NPI 1518923374. 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: 32144 Agoura Rd, Suite 112, Westlake Village, CA 91361 · Directions
  • Phone: (818) 889‑2739
  • Medicare: Accepts Medicare assignment
  • Hospital: Northridge Hospital Medical Center
  • Group practice: Karin I Harp MD Inc
  • Medical school: University Of Washington School Of Medicine · graduated 2001 (25 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Karin I. Harp, 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 Karin I. Harp accept Medicare assignment?
Yes. Medicare's clinician data says Karin I. Harp 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 Karin I. Harp see?
In 2024, CMS data shows 516 Original Medicare patients and 5,212 services for Karin I. Harp. This counts Original Medicare only and measures volume, not quality.
What is Karin I. Harp's NPI number?
1518923374. 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 Karin I. Harp, 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 patients516
Services billed to Medicare5,212
Different services or procedures76
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Destruction of precancer skin growth, 2-14 growths (17003)1,089 services
  2. Obtaining data needed to develop the optimal radiation treatment, 1 treatment area (77280)569 services
  3. Ultrasonic guidance for placement of radiation therapy fields (G6001)568 services
  4. Superficial and/or low voltage radiation treatment delivery (77401)561 services
  5. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)444 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 pressure59%
  • Arthritis49%
  • Ischemic heart disease28%
  • Osteoporosis27%
  • Anxiety19%

Hospitals where Karin I. Harp works

Medicare's Facility Affiliation Data lists Karin I. Harp 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.

Practice locations

Addresses where Karin I. Harp is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Karin I. Harp as a member of this group (CMS data updated October 2, 2026).

  • Karin I Harp MD Inc8 clinicians in the group

Specialties

Find other Dermatology doctors in California →

Other dermatologists in Westlake Village

Clinicians with the same Medicare primary specialty in Westlake Village, CA — not a recommendation.

All dermatologists in Westlake Village →

Other clinicians in Karin I Harp MD Inc

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

Clinician information

CredentialMD
Medical schoolUniversity Of Washington School Of Medicine
Graduation year2001 (25 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1518923374
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