Quick answers
- Does Andrew R. Vander Zwaag accept Medicare assignment?
- Yes. Medicare's clinician data says Andrew R. Vander Zwaag 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 Andrew R. Vander Zwaag see?
- In 2024, CMS data shows 63 Original Medicare patients and 2,314 services for Andrew R. Vander Zwaag. This counts Original Medicare only and measures volume, not quality.
- What is Andrew R. Vander Zwaag's NPI number?
- 1013577865. 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 Andrew R. Vander Zwaag, 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 | 63 |
|---|---|
| Services billed to Medicare | 2,314 |
| Different services or procedures | 10 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Therapy procedure using exercise to develop strength, endurance, range of motion, and flexibility, each 15 minutes (97110)734 services
- Therapy procedure using manual technique, each 15 minutes (97140)543 services
- Therapy procedure to re-educate brain-to-nerve-to-muscle function, each 15 minutes (97112)450 services
- Electrical stimulation (unattended), to one or more areas for indication(s) other than wound care, as part of a therapy plan of care (G0283)417 services
- Therapy procedure using functional activities (97530)112 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%
- Arthritis62%
- Osteoporosis27%
- Anxiety24%
- Ischemic heart disease19%
Practice locations
Addresses where Andrew R. Vander Zwaag is enrolled with Medicare (CMS data updated October 2, 2026).
- 6744 Clayton Rd, Suite 325Saint Louis, MO 63117 (314) 646‑8300
Group practices
Medicare enrollment lists Andrew R. Vander Zwaag as a member of this group (CMS data updated October 2, 2026).
- Advanced Training and Rehab LLC29 clinicians in the group
Specialties
Find other clinicians: Physical Therapist in Private Practice, Missouri →
Other physical therapists in Saint Louis
Clinicians with the same Medicare primary specialty in Saint Louis, MO — not a recommendation.
Other clinicians in Advanced Training and Rehab LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2019 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1013577865 |
| 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