Quick answers
- Does John R. Alexander Jr. accept Medicare assignment?
- Yes. Medicare's clinician data says John R. Alexander Jr. 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 R. Alexander Jr. see?
- In 2024, CMS data shows 396 Original Medicare patients and 7,886 services for John R. Alexander Jr.. This counts Original Medicare only and measures volume, not quality.
- What is John R. Alexander Jr.'s NPI number?
- 1669433298. 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 R. Alexander Jr., 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 | 396 |
|---|---|
| Services billed to Medicare | 7,886 |
| Different services or procedures | 24 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Injection, dexamethasone sodium phosphate, 1 mg (J1100)4,820 services
- Low osmolar contrast material, 200-299 mg/ml iodine concentration, per ml (Q9966)833 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)645 services
- Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level (64483)211 services
- Injection of substance into lower spine canal using imaging guidance (62323)208 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 pressure73%
- Arthritis70%
- Anxiety30%
- Diabetes29%
- Ischemic heart disease24%
Hospitals where John R. Alexander Jr. works
Medicare's Facility Affiliation Data lists John R. Alexander Jr. 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.
- Mount Pleasant HospitalMount Pleasant, SC · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 420104
Practice locations
Addresses where John R. Alexander Jr. is enrolled with Medicare (CMS data updated October 2, 2026).
- 526 Johnnie Dodds Blvd, Suite 301Mt Pleasant, SC 29464 (843) 856‑9669
Specialties
Find other Physical Medicine and Rehabilitation doctors in South Carolina →
Other rehabilitation doctors in Mt Pleasant
Clinicians with the same Medicare primary specialty in Mt Pleasant, SC — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Medical University Of South Carolina College Of Medicine |
| Graduation year | 1998 (28 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) | 1669433298 |
| 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