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Neurosurgery

Amandip S. Gill, MD

Works at hospitals in Simi Valley, CA · Thousand Oaks, CA · California

Summary

Dr. Amandip S. Gill, MD is a neurosurgeon at 1687 Erringer Rd, Simi Valley, CA 93065. Phone: (310) 927-1286. Accepts Medicare assignment. In 2024, Amandip S. Gill had 239 Original Medicare patients and 3,188 services. NPI 1427399955. 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.

From official Medicare data

This page shows what Medicare's official clinician data says about Amandip S. Gill, 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 Amandip S. Gill accept Medicare assignment?
Yes. Medicare's clinician data says Amandip S. Gill 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 Amandip S. Gill see?
In 2024, CMS data shows 239 Original Medicare patients and 3,188 services for Amandip S. Gill. This counts Original Medicare only and measures volume, not quality.
What is Amandip S. Gill's NPI number?
1427399955. 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 Amandip S. Gill, 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 patients239
Services billed to Medicare3,188
Different services or procedures34
Participating Medicare providerYes
Average age of these patients77

Most frequent services

  1. Prolonged hospital inpatient or observation care evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by th (G0316)1,035 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)913 services
  3. Critical care, each additional 30 minutes (99292)456 services
  4. Critical care, first 30-74 minutes (99291)225 services
  5. Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (G2212)182 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%
  • Arthritis75%
  • Diabetes45%
  • Ischemic heart disease44%
  • Depression41%

Hospitals where Amandip S. Gill works

Medicare's Facility Affiliation Data lists Amandip S. Gill 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.

  • Adventist Health Simi ValleySimi Valley, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050236
  • Los Robles Hospital & Medical CenterThousand Oaks, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050549

Practice locations

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

Specialties

Find other Neurosurgery doctors in California →

Other neurosurgeons in California

Clinicians with the same Medicare primary specialty in California — not a recommendation.

All neurosurgeons in California →

Clinician information

CredentialMD
Medical schoolUniversity Of California, Irvine, California College Of Medicine
Graduation year2009 (17 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1427399955
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