Quick answers
- Which hospitals does Shannon E. Mackay work at?
- Medicare's official clinician data lists Shannon E. Mackay at 2 hospitals: AdventHealth Littleton and AdventHealth Parker. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Shannon E. Mackay see patients?
- Medicare's clinician data lists 3 practice locations, including Denver, CO and Littleton, CO. Call before your visit to confirm the address.
- What is Shannon E. Mackay's specialty?
- Medicare lists Hospitalist as the primary specialty, and also Internal Medicine.
- Does Shannon E. Mackay accept Medicare assignment?
- Yes. Medicare's clinician data says Shannon E. Mackay 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 Shannon E. Mackay?
- (303) 778-5797, as listed in official Medicare / NPI Registry data.
- What is Shannon E. Mackay's NPI number?
- 1235585548. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Shannon E. Mackay works
Medicare's Facility Affiliation Data lists Shannon E. Mackay at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- AdventHealth LittletonLittleton, CO · Acute Care Hospital · CCN 060113
- AdventHealth ParkerParker, CO · Acute Care Hospital · CCN 060114
Practice locations
Addresses where Shannon E. Mackay is enrolled with Medicare (CMS data updated 2026-10-02).
- 2535 S Downing StDenver, CO 80210 (303) 778‑5797
- 7700 S BroadwayLittleton, CO 80122 (303) 730‑8900
- 7750 S Broadway, 260 South Denver NeurosurgeryLittleton, CO 80122 (303) 734‑8650
Group practices
Medicare enrollment lists Shannon E. Mackay as a member of this group (CMS data updated 2026-10-02).
- Portercare Adventist Health System774 clinicians in the group
Specialties
- Hospitalistprimary
- Internal Medicinealso
Other hospitalists in Denver
Clinicians with the same Medicare primary specialty in Denver, CO — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Rocky Vista University College Of Osteopathic Med |
| Graduation year | 2016 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1235585548 |
| 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