Quick answers
- Does Andrew G. Ross accept Medicare assignment?
- Yes. Medicare's clinician data says Andrew G. Ross accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Andrew G. Ross see?
- In 2024, CMS data shows 765 Original Medicare patients and 3,217 services for Andrew G. Ross. This counts Original Medicare only and measures volume, not quality.
- What is Andrew G. Ross's NPI number?
- 1932543998. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Andrew G. Ross, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 765 |
|---|---|
| Services billed to Medicare | 3,217 |
| Different services or procedures | 30 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)582 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)557 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)425 services
- Dialysis services, 4 or more physician visits per month (20 years or older) (90960)409 services
- Hemodialysis procedure requiring repeated evaluation (90937)269 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Chronic kidney disease75%
- Diabetes50%
- Arthritis49%
- Heart failure39%
Hospitals where Andrew G. Ross works
Medicare's Facility Affiliation Data lists Andrew G. Ross at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- French Hospital Medical CenterSan Luis Obispo, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050232
- Goleta Valley Cottage HospitalSanta Barbara, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050357
- Lompoc Valley Medical CenterLompoc, CA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 050110
- Marian Regional Medical CenterSanta Maria, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050107
- Santa Barbara Cottage HospitalSanta Barbara, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050396
Practice locations
Addresses where Andrew G. Ross is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 7; the Medicare profile lists all.
- 1225 N H StLompoc, CA 93436 (805) 737‑8700
- 136 N 3rd StLompoc, CA 93436 (805) 737‑3300
- 2428 Castillo St, Suite ASanta Barbara, CA 93105 (805) 682‑2541
- 305 Camino Del RemedioSanta Barbara, CA 93110 (888) 868‑1649
- 315 Camino Del RemedioSanta Barbara, CA 93110 (805) 884‑6850
Group practices
Medicare enrollment lists Andrew G. Ross as a member of these groups (CMS data updated October 2, 2026).
- Santa Barbara County Auditor97 clinicians in the group
- Lompoc Valley Medical Center91 clinicians in the group
- Santa Barbara Nephrology, Inc.2 clinicians in the group
Specialties
- Nephrologyprimary
Other nephrologists in Lompoc
Clinicians with the same Medicare primary specialty in Lompoc, CA — not a recommendation.
Other clinicians in Santa Barbara County Auditor
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2013 (13 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1932543998 |
| 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 October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- 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