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Psychiatry

Michelle A. O'Brien, DO

Sees patients in Fort Collins, CO · Colorado

Summary

Michelle A. O'Brien, DO (Psychiatry) is enrolled with Medicare at 1 practice location in Fort Collins, CO. NPI 1144601618. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

Call(970) 494‑4200 NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about Michelle A. O'Brien, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

1Practice location
PsychiatryPrimary specialty
YesAccepts Medicare assignment
11Years since medical school (graduated 2015)
FemaleGender (as listed)
Summitstone Health PartnersGroup practice

Quick answers

Where does Michelle A. O'Brien see patients?
Medicare's clinician data lists 1 practice location in Fort Collins, CO. Call before your visit to confirm the address.
What is Michelle A. O'Brien's specialty?
Medicare lists Psychiatry as the primary specialty, and also Addiction Medicine.
Does Michelle A. O'Brien accept Medicare assignment?
Yes. Medicare's clinician data says Michelle A. O'Brien 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 Michelle A. O'Brien?
(970) 494-4200, as listed in official Medicare / NPI Registry data.
What is Michelle A. O'Brien's NPI number?
1144601618. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Michelle A. O'Brien is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Michelle A. O'Brien as a member of this group (CMS data updated 2026-10-02).

  • Summitstone Health Partners115 clinicians in the group

Specialties

Find other Psychiatry doctors in Colorado →

Other psychiatrists in Fort Collins

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

All psychiatrists in Fort Collins →

Clinician information

CredentialDO
Graduation year2015
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1144601618
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians