Quick answers
- Which hospitals does Robert L. Barclay work at?
- Medicare's official clinician data lists Robert L. Barclay at 2 hospitals: Adventist Health Sierra Vista and Adventist Health Twin Cities. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Robert L. Barclay see patients?
- Medicare's clinician data lists 4 practice locations, including San Luis Obispo, CA, Arroyo Grande, CA and Templeton, CA. Call before your visit to confirm the address.
- What is Robert L. Barclay's specialty?
- Medicare lists Gastroenterology as the primary specialty, and also Internal Medicine.
- Does Robert L. Barclay accept Medicare assignment?
- Yes. Medicare's clinician data says Robert L. Barclay 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 Robert L. Barclay?
- (805) 542-9678, as listed in official Medicare / NPI Registry data.
- What is Robert L. Barclay's NPI number?
- 1073509337. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Robert L. Barclay works
Medicare's Facility Affiliation Data lists Robert L. Barclay at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Adventist Health Sierra VistaSan Luis Obispo, CA · Acute Care Hospital · CCN 050506
- Adventist Health Twin CitiesTempleton, CA · Acute Care Hospital · CCN 050633
Practice locations
Addresses where Robert L. Barclay is enrolled with Medicare (CMS data updated 2026-10-02).
- 1064 Murray AveSan Luis Obispo, CA 93405 (805) 542‑9678
- 1154 E Grand AveArroyo Grande, CA 93420 (805) 395‑3277
- 35 Casa St, Suite 130San Luis Obispo, CA 93405 (805) 541‑1422
- 959 Las Tablas Rd, Suite B3Templeton, CA 93465 (805) 395‑3277
Group practices
Medicare enrollment lists Robert L. Barclay as a member of this group (CMS data updated 2026-10-02).
- Adventist Health Physicians Network628 clinicians in the group
Specialties
- Gastroenterologyprimary
- Internal Medicinealso
Other gastroenterologists in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Toronto, Faculty Of Medicine |
| Graduation year | 1995 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1073509337 |
| 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