Quick answers
- Does Ziba Ranjbaran accept Medicare assignment?
- Yes. Medicare's clinician data says Ziba Ranjbaran 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 Ziba Ranjbaran see?
- In 2024, CMS data shows 83 Original Medicare patients and 927 services for Ziba Ranjbaran. This counts Original Medicare only and measures volume, not quality.
- What is Ziba Ranjbaran's NPI number?
- 1952557951. 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 Ziba Ranjbaran, 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 | 83 |
|---|---|
| Services billed to Medicare | 927 |
| Different services or procedures | 41 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)168 services
- Aspiration and/or injection of fluid large joint using ultrasound guidance (20611)100 services
- Hyaluronan or derivative, hyalgan, supartz or visco-3, for intra-articular injection, per dose (J7321)91 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)46 services
- Needle measurement of electrical activity in arm or leg muscles, complete study (95886)33 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 cholesterol75%
- High blood pressure67%
- Arthritis65%
- Diabetes24%
- Anxiety23%
- Depression22%
Practice locations
Addresses where Ziba Ranjbaran is enrolled with Medicare (CMS data updated October 2, 2026).
- 23512 MaderoMission Viejo, CA 92691 (949) 583‑1600
Group practices
Medicare enrollment lists Ziba Ranjbaran as a member of this group (CMS data updated October 2, 2026).
- Memorialcare Medical Foundation566 clinicians in the group
Specialties
Find other Physical Medicine and Rehabilitation doctors in California →
Other rehabilitation doctors in Mission Viejo
Clinicians with the same Medicare primary specialty in Mission Viejo, CA — not a recommendation.
Other clinicians in Memorialcare Medical Foundation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1989 (37 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1952557951 |
| 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