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Dermatology

Khaled M. Hassan, MD

Works at hospitals in Fullerton, CA · California

Summary

Dr. Khaled M. Hassan, MD is a dermatologist at 100 E Valencia Mesa Dr, Suite 105, Fullerton, CA 92835. Phone: (714) 871-3006. Accepts Medicare assignment. In 2024, Khaled M. Hassan had 416 Original Medicare patients and 2,937 services. NPI 1023272309. 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: 100 E Valencia Mesa Dr, Suite 105, Fullerton, CA 92835 · Directions (3 more locations)
  • Phone: (714) 871‑3006
  • Medicare: Accepts Medicare assignment
  • Hospital: Providence St. Jude Medical Center
  • Group practice: Providence Medical Foundation
  • Medical school: Duke University School Of Medicine · graduated 2008 (18 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Khaled M. Hassan, 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 Khaled M. Hassan accept Medicare assignment?
Yes. Medicare's clinician data says Khaled M. Hassan 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 Khaled M. Hassan see?
In 2024, CMS data shows 416 Original Medicare patients and 2,937 services for Khaled M. Hassan. This counts Original Medicare only and measures volume, not quality.
What is Khaled M. Hassan's NPI number?
1023272309. 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 Khaled M. Hassan, 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 patients416
Services billed to Medicare2,937
Different services or procedures103
Participating Medicare providerYes
Average age of these patients77

Most frequent services

  1. Destruction of precancer skin growth, 2-14 growths (17003)810 services
  2. Pathology examination of tissue using a microscope, intermediate complexity (88305)338 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)274 services
  4. Destruction of precancer skin growth, 1 growth (17000)157 services
  5. Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, each additional stage, 1-5 tissue blocks (17312)133 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 pressure72%
  • Arthritis44%
  • Diabetes27%
  • Chronic kidney disease24%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)22%

Hospitals where Khaled M. Hassan works

Medicare's Facility Affiliation Data lists Khaled M. Hassan 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 Khaled M. Hassan is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Khaled M. Hassan as a member of this group (CMS data updated October 2, 2026).

  • Providence Medical Foundation1,466 clinicians in the group

Specialties

Find other Dermatology doctors in California →

Other dermatologists in Fullerton

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

All dermatologists in Fullerton →

Other clinicians in Providence Medical Foundation

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

Clinician information

CredentialMD
Medical schoolDuke University School Of Medicine
Graduation year2008 (18 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1023272309
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