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Gastroenterology

Parminder S. Dhaliwal, MD

Works at hospitals in Newport Beach, CA · California

Summary

Dr. Parminder S. Dhaliwal, MD is a gastroenterologist at 520 Superior Ave, Suite 230, Newport Beach, CA 92663. Phone: (949) 650-6731. Accepts Medicare assignment. In 2024, Parminder S. Dhaliwal had 480 Original Medicare patients and 1,583 services. NPI 1811913759. 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: Gastroenterologist (Medicare lists Gastroenterology)
  • Address: 520 Superior Ave, Suite 230, Newport Beach, CA 92663 · Directions
  • Phone: (949) 650‑6731
  • Medicare: Accepts Medicare assignment
  • Hospital: Hoag Memorial Hospital Presbyterian
  • Medical school: graduated 1979 (47 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Parminder S. Dhaliwal, 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 Parminder S. Dhaliwal accept Medicare assignment?
Yes. Medicare's clinician data says Parminder S. Dhaliwal 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 Parminder S. Dhaliwal see?
In 2024, CMS data shows 480 Original Medicare patients and 1,583 services for Parminder S. Dhaliwal. This counts Original Medicare only and measures volume, not quality.
What is Parminder S. Dhaliwal's NPI number?
1811913759. 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 Parminder S. Dhaliwal, 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 patients480
Services billed to Medicare1,583
Different services or procedures40
Participating Medicare providerYes
Average age of these patients77

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)552 services
  2. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)204 services
  3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)195 services
  4. Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)164 services
  5. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)125 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 disease36%
  • Diabetes31%
  • Chronic kidney disease29%

Hospitals where Parminder S. Dhaliwal works

Medicare's Facility Affiliation Data lists Parminder S. Dhaliwal 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 Parminder S. Dhaliwal is enrolled with Medicare (CMS data updated October 2, 2026).

Specialties

Find other Gastroenterology doctors in California →

Other gastroenterologists in Newport Beach

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

All gastroenterologists in Newport Beach →

Clinician information

CredentialMD
Graduation year1979 (47 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1811913759
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