Quick answers
- Which hospitals does Michael Obrien work at?
- Medicare's official clinician data lists Michael Obrien at 5 hospitals: Centura Health-St Anthony Hospital, Centura Health-St Anthony North Health Campus, Longmont United Hospital, St Anthony Summit Medical Center and St. Catherine Hospital - Garden City. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Michael Obrien see patients?
- Medicare's clinician data lists 4 practice locations, including Frisco, CO, Lakewood, CO and Garden City, KS. Call before your visit to confirm the address.
- What is Michael Obrien's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty, and also Interventional Radiology.
- Does Michael Obrien accept Medicare assignment?
- Yes. Medicare's clinician data says Michael Obrien accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Michael Obrien?
- (970) 668-3300, as listed in official Medicare / NPI Registry data.
- What is Michael Obrien's NPI number?
- 1720168172. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Michael Obrien works
Medicare's Facility Affiliation Data lists Michael Obrien at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Centura Health-St Anthony HospitalLakewood, CO · Acute Care Hospital · CCN 060015
- Centura Health-St Anthony North Health CampusWestminster, CO · Acute Care Hospital · CCN 060104
- Longmont United HospitalLongmont, CO · Acute Care Hospital · CCN 060003
- St Anthony Summit Medical CenterFrisco, CO · Acute Care Hospital · CCN 060118
- St. Catherine Hospital - Garden CityGarden City, KS · Acute Care Hospital · CCN 170023
Practice locations
Addresses where Michael Obrien is enrolled with Medicare (CMS data updated 2026-10-02).
- 340 Peak One DrFrisco, CO 80443 (970) 668‑3300
- 355 Union Blvd, Suite 100Lakewood, CO 80228 (720) 669‑3036
- 401 E Spruce StGarden City, KS 67846 (620) 272‑2276
- 415 N Main StUlysses, KS 67880 (620) 356‑1266
Group practices
Medicare enrollment lists Michael Obrien as a member of these groups (CMS data updated 2026-10-02).
- Colorado Imaging Associates P C62 clinicians in the group
- Colorado Advanced Endovascular, LLC13 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
- Interventional Radiologyalso
Other radiologists in Colorado
Clinicians with the same Medicare primary specialty in Colorado — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Vermont College Of Medicine |
| Graduation year | 1997 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1720168172 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians