Donald Thorsen
NPI 1770930463 · Occupational Therapist · O Fallon, MO
Enrolled with Medicare as Practitioner - Occupational Therapist in Private Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Donald Thorsen is a Occupational Therapist provider in O Fallon, MO (NPI 1770930463).
Provider details
- NPI number
- 1770930463
- Entity type
- Individual
- Primary specialty
- Occupational TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 2016017355 (IL)
Specialties & taxonomies
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
10 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
906 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Therapy Procedure Using Functional Activities97530 | 365 | $31 |
| Therapy Procedure to Re-Educate Brain-To-Nerve-To-Muscle Function, Each 15 Minutes97112 | 261 | $25 |
| Therapy Procedure Using Exercise to Develop Strength, Endurance, Range of Motion, and Flexibility, Each 15 Minutes97110 | 151 | $23 |
| Therapy Procedure Using Manual Technique, Each 15 Minutes97140 | 117 | $21 |
| Training in the Use of Orthopedic Device for Arm, Leg And/Or Trunk, Each 15 Minutes97760 | 12 | $46 |
Typical Medicare-allowed amounts for these services range $21–$46 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-05-23
- Last updated
- 2020-07-14
- Certified
- 2020-07-14
Frequently asked questions
- What is Donald Thorsen's NPI number?
- Donald Thorsen's National Provider Identifier (NPI) is 1770930463, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Donald Thorsen's specialty?
- Donald Thorsen is listed in the NPPES registry with a primary specialty of Occupational Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Donald Thorsen located?
- Donald Thorsen's practice location on file with NPPES is 951 Waterbury Falls Dr, O Fallon, MO 63368-2202.
- What is Donald Thorsen's phone number?
- The practice phone number listed in the NPPES registry for Donald Thorsen is (636) 336-0297.
- Does Donald Thorsen accept Medicare?
- Donald Thorsen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Donald Thorsen's NPI active?
- Yes — Donald Thorsen's NPI (1770930463) is active in the NPPES registry as of the last update on 2020-07-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.