Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Gastroenterology

Aliya G. Hasan, MD

Works at hospitals in Colorado Springs, CO · Colorado

Summary

Dr. Aliya G. Hasan, MD is a gastroenterologist at 2940 N Circle Dr, Colorado Springs, CO 80909. Phone: (719) 635-7321. Accepts Medicare assignment. In 2024, Aliya G. Hasan had 49 Original Medicare patients and 85 services. NPI 1912053539. 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 Aliya G. Hasan, 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 Aliya G. Hasan accept Medicare assignment?
Yes. Medicare's clinician data says Aliya G. Hasan 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 Aliya G. Hasan see?
In 2024, CMS data shows 49 Original Medicare patients and 85 services for Aliya G. Hasan. This counts Original Medicare only and measures volume, not quality.
What is Aliya G. Hasan's NPI number?
1912053539. 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 Aliya G. Hasan, 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 patients49
Services billed to Medicare85
Different services or procedures17
Participating Medicare providerYes
Average age of these patients70

Most frequent services

  1. Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (G0500)24 services
  2. Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)21 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 pressure69%
  • High cholesterol53%
  • Arthritis39%
  • Diabetes24%
  • Chronic kidney disease24%

Hospitals where Aliya G. Hasan works

Medicare's Facility Affiliation Data lists Aliya G. Hasan 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 Aliya G. Hasan is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Aliya G. Hasan as a member of this group (CMS data updated October 2, 2026).

  • Assoc in Gastroenterology, PC27 clinicians in the group

Specialties

Find other Gastroenterology doctors in Colorado →

Other gastroenterologists in Colorado Springs

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

All gastroenterologists in Colorado Springs →

Other clinicians in Assoc in Gastroenterology, PC

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

Clinician information

CredentialMD
Medical schoolNew York University School Of Medicine
Graduation year1998 (28 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1912053539
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