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Anesthesiology

Kristina Naseer, MD

Works at hospitals in Maryville, IL · Greenville, IL · O Fallon, IL … · Illinois

Summary

Dr. Kristina Naseer, MD is an anesthesiologist at 1 Saint Elizabeth Blvd, O Fallon, IL 62269. Phone: (618) 234-2120. Accepts Medicare assignment. In 2024, Kristina Naseer had 593 Original Medicare patients and 1,730 services. NPI 1811188949. 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 Kristina Naseer, 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 Kristina Naseer accept Medicare assignment?
Yes. Medicare's clinician data says Kristina Naseer 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 Kristina Naseer see?
In 2024, CMS data shows 593 Original Medicare patients and 1,730 services for Kristina Naseer. This counts Original Medicare only and measures volume, not quality.
What is Kristina Naseer's NPI number?
1811188949. 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 Kristina Naseer, 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 patients593
Services billed to Medicare1,730
Different services or procedures41
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level (64483)348 services
  2. Injection of substance into lower spine canal using imaging guidance (62323)179 services
  3. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)170 services
  4. Injection of anesthetic or steroid into joint between lower spine and hip bone using imaging guidance (27096)160 services
  5. Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, each additional level (64484)138 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%
  • Ischemic heart disease36%
  • Diabetes33%
  • Chronic kidney disease32%

Hospitals where Kristina Naseer works

Medicare's Facility Affiliation Data lists Kristina Naseer 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.

  • Anderson HospitalMaryville, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140289
  • HSHS Holy Family Hospital IncGreenville, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140137
  • HSHS St Elizabeth's HospitalO Fallon, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140187
  • Memorial HospitalBelleville, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140185
  • St Josephs HospitalBreese, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140145

Practice locations

Addresses where Kristina Naseer is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Kristina Naseer as a member of this group (CMS data updated October 2, 2026).

  • HSHS Medical Group Inc219 clinicians in the group

Specialties

Find other Anesthesiology doctors in Illinois →

Other anesthesiologists in O Fallon

Clinicians with the same Medicare primary specialty in O Fallon, IL — not a recommendation.

All anesthesiologists in O Fallon →

Other clinicians in HSHS Medical Group Inc

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

Clinician information

CredentialMD
Medical schoolUniversity Of Missouri, Kansas City, School Of Medicine
Graduation year2002 (24 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1811188949
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