Quick answers
- Which hospitals does Douglas E. Severance work at?
- Medicare's official clinician data lists Douglas E. Severance at 3 hospitals: John Muir Medical Center - Walnut Creek Campus, San Ramon Regional Medical Center and Stanford Health Care Tri-Valley. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Douglas E. Severance see patients?
- Medicare's clinician data lists 1 practice location in San Ramon, CA. Call before your visit to confirm the address.
- What is Douglas E. Severance's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Family Practice.
- Does Douglas E. Severance accept Medicare assignment?
- Yes. Medicare's clinician data says Douglas E. Severance 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 Douglas E. Severance offer telehealth?
- Medicare's clinician data says Douglas E. Severance offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Douglas E. Severance?
- (925) 275-0400, as listed in official Medicare / NPI Registry data.
- What is Douglas E. Severance's NPI number?
- 1639289838. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Douglas E. Severance works
Medicare's Facility Affiliation Data lists Douglas E. Severance at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA · Acute Care Hospital · CCN 050180
- San Ramon Regional Medical CenterSan Ramon, CA · Acute Care Hospital · CCN 050689
- Stanford Health Care Tri-ValleyPleasanton, CA · Acute Care Hospital · CCN 050283
Practice locations
Addresses where Douglas E. Severance is enrolled with Medicare (CMS data updated 2026-10-02).
- 5601 Norris Canyon RdSan Ramon, CA 94583 (925) 275‑0400
Specialties
- Internal Medicineprimary
- Family Practicealso
Other internal medicine doctors in San Ramon
Clinicians with the same Medicare primary specialty in San Ramon, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Loma Linda University School Of Medicine |
| Graduation year | 1976 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1639289838 |
| 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