Quick answers
- Does Roxanna Pourmirzaie accept Medicare assignment?
- Yes. Medicare's clinician data says Roxanna Pourmirzaie 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 Roxanna Pourmirzaie see?
- In 2024, CMS data shows 311 Original Medicare patients and 620 services for Roxanna Pourmirzaie. This counts Original Medicare only and measures volume, not quality.
- What is Roxanna Pourmirzaie's NPI number?
- 1881187151. 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 Roxanna Pourmirzaie, 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 | 311 |
|---|---|
| Services billed to Medicare | 620 |
| Different services or procedures | 13 |
| 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)325 services
- Hospital discharge day management, more than 30 minutes (99239)138 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)80 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)44 services
- Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)15 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%
- Arthritis51%
- Ischemic heart disease45%
- Chronic kidney disease42%
- Heart failure40%
Hospitals where Roxanna Pourmirzaie works
Medicare's Facility Affiliation Data lists Roxanna Pourmirzaie 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.
- Kaiser Foundation Hospital-Santa RosaSanta Rosa, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050690
- Providence Santa Rosa Memorial HospitalSanta Rosa, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050174
- Sutter Santa Rosa Regional HospitalSanta Rosa, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050291
Practice locations
Addresses where Roxanna Pourmirzaie is enrolled with Medicare (CMS data updated October 2, 2026).
- 1165 Montgomery DrSanta Rosa, CA 95405 (707) 546‑3210
- 250 Bon Air RdGreenbrae, CA 94904 (415) 925‑7000
- 3555 Cesar ChavezSan Francisco, CA 94110 (415) 485‑8824
- 400 N McDowell BlvdPetaluma, CA 94954 (707) 778‑2631
- 401 Bicentennial WaySanta Rosa, CA 95403 (707) 393‑4000
Group practices
Medicare enrollment lists Roxanna Pourmirzaie as a member of these groups (CMS data updated October 2, 2026).
- Permanente Medical Group Inc10,996 clinicians in the group
- Providence Medical Foundation1,466 clinicians in the group
- Galen Inpatient Physicians PC1,077 clinicians in the group
- Pacific Inpatient Medical Group132 clinicians in the group
Specialties
- Internal Medicineprimary
- Hospitalistalso
Other internal medicine doctors in Santa Rosa
Clinicians with the same Medicare primary specialty in Santa Rosa, CA — not a recommendation.
Other clinicians in Permanente Medical Group Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2018 (8 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1881187151 |
| 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