Quick answers
- Does Rosanna Petronella accept Medicare assignment?
- Yes. Medicare's clinician data says Rosanna Petronella 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 Rosanna Petronella see?
- In 2024, CMS data shows 198 Original Medicare patients and 6,127 services for Rosanna Petronella. This counts Original Medicare only and measures volume, not quality.
- What is Rosanna Petronella's NPI number?
- 1134224272. 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 Rosanna Petronella, 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 | 198 |
|---|---|
| Services billed to Medicare | 6,127 |
| Different services or procedures | 18 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Injection, denosumab, 1 mg (J0897)2,580 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)324 services
- Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report (95251)224 services
- Blood glucose (sugar) test performed by hand-held instrument (82962)80 services
- Injection of drug or substance under skin or into muscle (96372)71 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%
- Diabetes75%
- Chronic kidney disease55%
- Arthritis51%
- Ischemic heart disease31%
Practice locations
Addresses where Rosanna Petronella is enrolled with Medicare (CMS data updated October 2, 2026).
- 215 Pesetas LnSanta Barbara, CA 93110 (805) 681‑7800
Group practices
Medicare enrollment lists Rosanna Petronella as a member of this group (CMS data updated October 2, 2026).
- Sansum Clinic320 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Santa Barbara
Clinicians with the same Medicare primary specialty in Santa Barbara, CA — not a recommendation.
Other clinicians in Sansum Clinic
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 1979 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1134224272 |
| 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
- 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