Quick answers
- Which hospitals does Glen S. O Sullivan work at?
- Medicare's official clinician data lists Glen S. O Sullivan at 5 hospitals: Asante Ashland Community Hospital, Asante Rogue Regional Medical Center, Fairchild Medical Center, Mercy Medical Center of Mt Shasta and Mercy Medical Center Redding. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Glen S. O Sullivan see patients?
- Medicare's clinician data lists 3 practice locations, including Redding, CA, Mount Shasta, CA and Mt Shasta, CA. Call before your visit to confirm the address.
- What is Glen S. O Sullivan's specialty?
- Medicare lists Orthopedic Surgery as the primary specialty.
- Does Glen S. O Sullivan accept Medicare assignment?
- Yes. Medicare's clinician data says Glen S. O Sullivan 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.
- Does Glen S. O Sullivan offer telehealth?
- Medicare's clinician data says Glen S. O Sullivan offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Glen S. O Sullivan?
- (530) 242-3500, as listed in official Medicare / NPI Registry data.
- What is Glen S. O Sullivan's NPI number?
- 1972504652. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Glen S. O Sullivan works
Medicare's Facility Affiliation Data lists Glen S. O Sullivan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Asante Ashland Community HospitalAshland, OR · Acute Care Hospital · CCN 380005
- Asante Rogue Regional Medical CenterMedford, OR · Acute Care Hospital · CCN 380018
- Fairchild Medical CenterYreka, CA · Critical Access Hospital · CCN 051316
- Mercy Medical Center of Mt ShastaMount Shasta, CA · Critical Access Hospital · CCN 051319
- Mercy Medical Center ReddingRedding, CA · Acute Care Hospital · CCN 050280
Practice locations
Addresses where Glen S. O Sullivan is enrolled with Medicare (CMS data updated 2026-10-02).
- 2510 Airpark Dr, Suite 301Redding, CA 96001 (530) 242‑3500
- 635 Lassen LnMount Shasta, CA 96067 (530) 926‑5211
- 635 Lassen LnMt Shasta, CA 96067
Group practices
Medicare enrollment lists Glen S. O Sullivan as a member of this group (CMS data updated 2026-10-02).
- Dignity Health Medical Foundation1,184 clinicians in the group
Specialties
- Orthopedic Surgeryprimary
Other orthopedic surgeons in Redding
Clinicians with the same Medicare primary specialty in Redding, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1986 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1972504652 |
| 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