Quick answers
- Does Lara G. Pfeiffer accept Medicare assignment?
- Yes. Medicare's clinician data says Lara G. Pfeiffer 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 Lara G. Pfeiffer see?
- In 2024, CMS data shows 80 Original Medicare patients and 1,047 services for Lara G. Pfeiffer. This counts Original Medicare only and measures volume, not quality.
- What is Lara G. Pfeiffer's NPI number?
- 1871375964. 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 Lara G. Pfeiffer, 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 | 80 |
|---|---|
| Services billed to Medicare | 1,047 |
| Different services or procedures | 7 |
| Participating Medicare provider | Yes |
| Average age of these patients | 70 |
Most frequent services
- Therapy procedure using exercise to develop strength, endurance, range of motion, and flexibility, each 15 minutes (97110)667 services
- Therapy procedure using functional activities (97530)296 services
- Evaluation for physical therapy, typically 20 minutes (97161)37 services
- Therapy procedure using manual technique, each 15 minutes (97140)30 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 pressure71%
- High cholesterol66%
- Arthritis61%
- Depression25%
- Anxiety24%
- Diabetes21%
Practice locations
Addresses where Lara G. Pfeiffer is enrolled with Medicare (CMS data updated October 2, 2026).
- 1 Progress Point Pkwy, Suite 100O Fallon, MO 63368 (314) 286‑1940
- 4444 Forest Park AveSaint Louis, MO 63108
- 4444 Forest Park Ave, Suite 1210Saint Louis, MO 63108 (314) 286‑1940
Group practices
Medicare enrollment lists Lara G. Pfeiffer as a member of this group (CMS data updated October 2, 2026).
- Washington University3,029 clinicians in the group
Specialties
Find other clinicians: Physical Therapist in Private Practice, Missouri →
Other physical therapists in O Fallon
Clinicians with the same Medicare primary specialty in O Fallon, MO — not a recommendation.
Other clinicians in Washington University
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2021 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1871375964 |
| 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