Quick answers
- Does John S. Maarouf accept Medicare assignment?
- Yes. Medicare's clinician data says John S. Maarouf 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 John S. Maarouf see?
- In 2024, CMS data shows 330 Original Medicare patients and 6,493 services for John S. Maarouf. This counts Original Medicare only and measures volume, not quality.
- What is John S. Maarouf's NPI number?
- 1497174478. 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 John S. Maarouf, 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 | 330 |
|---|---|
| Services billed to Medicare | 6,493 |
| Different services or procedures | 97 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Injection, methylprednisolone acetate, 1 mg (J1010)1,777 services
- Injection of drug or substance under skin or into muscle (96372)762 services
- Injection, ketorolac tromethamine, per 15 mg (J1885)505 services
- Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes (99349)485 services
- Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg (J3420)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 blood pressure75%
- High cholesterol75%
- Diabetes75%
- Arthritis75%
- Ischemic heart disease51%
- Alzheimer's disease or dementia50%
Practice locations
Addresses where John S. Maarouf is enrolled with Medicare (CMS data updated October 2, 2026).
- 38525 8 Mile RdLivonia, MI 48152 (734) 542‑5512
- 4109 N Federal HwyFt Lauderdale, FL 33308 (954) 563‑2707
Group practices
Medicare enrollment lists John S. Maarouf as a member of this group (CMS data updated October 2, 2026).
- Joel D Stein, D.O., P.A7 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Livonia
Clinicians with the same Medicare primary specialty in Livonia, MI — not a recommendation.
Other clinicians in Joel D Stein, D.O., P.A
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Michigan State University College Of Osteopathic Medicine |
| Graduation year | 2014 (12 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) | 1497174478 |
| 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