Quick answers
- Which hospitals does Joseph B. Assini work at?
- Medicare's official clinician data lists Joseph B. Assini at 3 hospitals: AdventHealth Littleton, AdventHealth Parker and AdventHealth Porter. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Joseph B. Assini see patients?
- Medicare's clinician data lists 10 practice locations, including Denver, CO, Greenwood Village, CO and Littleton, CO. Call before your visit to confirm the address.
- What is Joseph B. Assini's specialty?
- Medicare lists Orthopedic Surgery as the primary specialty.
- Does Joseph B. Assini accept Medicare assignment?
- Yes. Medicare's clinician data says Joseph B. Assini 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 Joseph B. Assini?
- (303) 744-1065, as listed in official Medicare / NPI Registry data.
- What is Joseph B. Assini's NPI number?
- 1841538832. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Joseph B. Assini works
Medicare's Facility Affiliation Data lists Joseph B. Assini 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
- AdventHealth PorterDenver, CO · Acute Care Hospital · CCN 060064
Practice locations
Addresses where Joseph B. Assini is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 10; the Medicare profile lists all.
- 2525 S Downing StDenver, CO 80210
- 2535 D S Downing St, Suite 460Denver, CO 80210 (303) 744‑1065
- 2535 S Downing StDenver, CO 80210 (303) 778‑5797
- 2535 S Downing St, 100 Cojr Colo Joint ReplmtDenver, CO 80210 (720) 524‑1367
- 5351 S Roslyn StGreenwood Village, CO 80111
Group practices
Medicare enrollment lists Joseph B. Assini as a member of this group (CMS data updated 2026-10-02).
- Portercare Adventist Health System774 clinicians in the group
Specialties
- Orthopedic Surgeryprimary
Other orthopedic surgeons in Denver
Clinicians with the same Medicare primary specialty in Denver, CO — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2007 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1841538832 |
| 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