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General Surgery

Gurpreet S. Dhillon, MD

Sees patients in Irvine, CA · Redondo Beach, CA · Lakewood, CA … · California

Summary

Dr. Gurpreet S. Dhillon, MD is a general surgeon at 19191 Harvard Ave, Irvine, CA 92612. Phone: (949) 854-9500. Accepts Medicare assignment. In 2024, Gurpreet S. Dhillon had 64 Original Medicare patients and 1,670 services. NPI 1831399229. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: General surgeon (Medicare lists General Surgery)
  • Address: 19191 Harvard Ave, Irvine, CA 92612 · Directions (3 more locations)
  • Phone: (949) 854‑9500
  • Medicare: Accepts Medicare assignment
  • Group practice: Healthcare Partners Affiliates Medical Group (+2 more)
  • Medical school: graduated 1990 (36 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Gurpreet S. Dhillon, 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 Gurpreet S. Dhillon accept Medicare assignment?
Yes. Medicare's clinician data says Gurpreet S. Dhillon 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 Gurpreet S. Dhillon see?
In 2024, CMS data shows 64 Original Medicare patients and 1,670 services for Gurpreet S. Dhillon. This counts Original Medicare only and measures volume, not quality.
What is Gurpreet S. Dhillon's NPI number?
1831399229. 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 Gurpreet S. Dhillon, 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 patients64
Services billed to Medicare1,670
Different services or procedures32
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Application of vein wound compression bandages on lower leg, ankle, and foot (29581)500 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)144 services
  3. Removal of tissue from wound, 20.0 sq cm or less (97597)133 services
  4. Removal of skin and tissue, 20.0 sq cm or less (11042)72 services
  5. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)16 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%
  • Diabetes63%
  • Arthritis50%
  • Chronic kidney disease44%
  • Depression34%

Practice locations

Addresses where Gurpreet S. Dhillon is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Gurpreet S. Dhillon as a member of these groups (CMS data updated October 2, 2026).

  • Healthcare Partners Affiliates Medical Group754 clinicians in the group
  • Robert Marriott Medical Corp64 clinicians in the group
  • Baromedical Physician Associates Medical Group Inc5 clinicians in the group

Specialties

Find other General Surgery doctors in California →

Other general surgeons in Irvine

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

All general surgeons in Irvine →

Other clinicians in Healthcare Partners Affiliates Medical Group

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

Clinician information

CredentialMD
Graduation year1990 (36 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1831399229
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