Quick answers
- Does Michael S. Marandola accept Medicare assignment?
- Yes. Medicare's clinician data says Michael S. Marandola 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 Michael S. Marandola see?
- In 2024, CMS data shows 603 Original Medicare patients and 16,310 services for Michael S. Marandola. This counts Original Medicare only and measures volume, not quality.
- What is Michael S. Marandola's NPI number?
- 1013974393. 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 Michael S. Marandola, 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 | 603 |
|---|---|
| Services billed to Medicare | 16,310 |
| Different services or procedures | 92 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Hyaluronan or derivative, trivisc, for intra-articular injection, 1 mg (J7329)11,875 services
- Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg (J0702)639 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)444 services
- Aspiration and/or injection of fluid large joint using ultrasound guidance (20611)419 services
- Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)404 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%
- Arthritis75%
- High blood pressure65%
- Ischemic heart disease26%
- Anxiety23%
- Diabetes22%
Hospitals where Michael S. Marandola works
Medicare's Facility Affiliation Data lists Michael S. Marandola 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.
- Providence Mission HospitalMission Viejo, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050567
Practice locations
Addresses where Michael S. Marandola is enrolled with Medicare (CMS data updated October 2, 2026).
- 26401 Crown Valley Pkwy, Suite 101Mission Viejo, CA 92691 (949) 348‑4000
- 26471 Crown Valley Pkwy, Suite 101Mission Viejo, CA 92691 (949) 348‑4000
Group practices
Medicare enrollment lists Michael S. Marandola as a member of this group (CMS data updated October 2, 2026).
- Community Orthopedic Medical Group17 clinicians in the group
Specialties
- Sports Medicineprimary
- Orthopedic Surgeryalso
Other sports medicine doctors in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Other clinicians in Community Orthopedic Medical Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Boston University School Of Medicine |
| Graduation year | 1987 (39 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1013974393 |
| 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