Quick answers
- Does Afshin A. Mashoof accept Medicare assignment?
- Yes. Medicare's clinician data says Afshin A. Mashoof 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 Afshin A. Mashoof see?
- In 2024, CMS data shows 105 Original Medicare patients and 2,524 services for Afshin A. Mashoof. This counts Original Medicare only and measures volume, not quality.
- What is Afshin A. Mashoof's NPI number?
- 1588692131. 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 Afshin A. Mashoof, 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 | 105 |
|---|---|
| Services billed to Medicare | 2,524 |
| Different services or procedures | 39 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Injection, methylprednisolone acetate, 1 mg (J1010)2,220 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)82 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)66 services
- Aspiration and/or injection of fluid from large joint (20610)44 services
- X-ray of knee, 1-2 views (73560)27 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 cholesterol72%
- Arthritis71%
- Diabetes37%
- Depression29%
- Anxiety26%
Practice locations
Addresses where Afshin A. Mashoof is enrolled with Medicare (CMS data updated October 2, 2026).
- 18111 Brookhurst St, Suite 2600Fountain Valley, CA 92708 (714) 200‑1010
Group practices
Medicare enrollment lists Afshin A. Mashoof as a member of this group (CMS data updated October 2, 2026).
- Center for Advanced Orthopedics and Sports Medicine Inc3 clinicians in the group
Specialties
- Sports Medicineprimary
Other sports medicine doctors in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Other clinicians in Center for Advanced Orthopedics and Sports Medicine Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Creighton University School Of Medicine |
| Graduation year | 1993 (33 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1588692131 |
| 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