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Anesthesiology

Gisella M. Pere, MD

Works at hospitals in Littleton, CO · Denver, CO · Colorado

Summary

Dr. Gisella M. Pere, MD is an anesthesiologist at 2525 S Downing St, Porter Adventist Hospital, Denver, CO 80210. Phone: (303) 438-3999. Accepts Medicare assignment. In 2024, Gisella M. Pere had 173 Original Medicare patients and 211 services. NPI 1881199636. 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: Anesthesiologist (Medicare lists Anesthesiology)
  • Address: 2525 S Downing St, Porter Adventist Hospital, Denver, CO 80210 · Directions
  • Phone: (303) 438‑3999
  • Medicare: Accepts Medicare assignment
  • Hospitals: AdventHealth Littleton, AdventHealth Porter
  • Group practice: US Anesthesia Partners of Colorado Inc
  • Medical school: Indiana University School Of Medicine · graduated 2018 (8 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Gisella M. Pere, 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 Gisella M. Pere accept Medicare assignment?
Yes. Medicare's clinician data says Gisella M. Pere 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 Gisella M. Pere see?
In 2024, CMS data shows 173 Original Medicare patients and 211 services for Gisella M. Pere. This counts Original Medicare only and measures volume, not quality.
What is Gisella M. Pere's NPI number?
1881199636. 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 Gisella M. Pere, 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 patients173
Services billed to Medicare211
Different services or procedures48
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Anesthesia for electroshock therapy (00104)38 services
  2. Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)26 services
  3. Anesthesia for procedure for total knee joint replacement (01402)22 services
  4. Anesthesia for total hip replacement (01214)14 services
  5. Anesthesia for other procedure on large bowel using an endoscope (00811)12 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%
  • Arthritis63%
  • Ischemic heart disease36%
  • Depression34%
  • Anxiety34%

Hospitals where Gisella M. Pere works

Medicare's Facility Affiliation Data lists Gisella M. Pere 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.

  • AdventHealth LittletonLittleton, CO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 060113
  • AdventHealth PorterDenver, CO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 060064

Practice locations

Addresses where Gisella M. Pere is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

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

  • US Anesthesia Partners of Colorado Inc461 clinicians in the group

Specialties

Find other Anesthesiology doctors in Colorado →

Other anesthesiologists in Denver

Clinicians with the same Medicare primary specialty in Denver, CO — not a recommendation.

All anesthesiologists in Denver →

Other clinicians in US Anesthesia Partners of Colorado Inc

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

Clinician information

CredentialMD
Medical schoolIndiana University School Of Medicine
Graduation year2018 (8 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1881199636
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