Quick answers
- Does Mahshid Kamyab accept Medicare assignment?
- Yes. Medicare's clinician data says Mahshid Kamyab 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 Mahshid Kamyab see?
- In 2024, CMS data shows 33 Original Medicare patients and 63 services for Mahshid Kamyab. This counts Original Medicare only and measures volume, not quality.
- What is Mahshid Kamyab's NPI number?
- 1568889855. 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 Mahshid Kamyab, 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 | 33 |
|---|---|
| Services billed to Medicare | 63 |
| Different services or procedures | 12 |
| Participating Medicare provider | Yes |
| Average age of these patients | 79 |
Most frequent services
- Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional (99211)49 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%
- Atrial fibrillation67%
- Arthritis48%
- Diabetes42%
- Chronic kidney disease42%
Practice locations
Addresses where Mahshid Kamyab is enrolled with Medicare (CMS data updated October 2, 2026).
- 4420 76th St NEMarysville, WA 98270 (360) 651‑7490
Group practices
Medicare enrollment lists Mahshid Kamyab as a member of this group (CMS data updated October 2, 2026).
- Optum Care Washington PLLC683 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Marysville
Clinicians with the same Medicare primary specialty in Marysville, WA — not a recommendation.
Other clinicians in Optum Care Washington PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1991 (35 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1568889855 |
| 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