Spencer Derifield, PT, DPT
NPI 1831838655 · Physical Therapist · Newton, IA
Enrolled with Medicare as Practitioner - Physical Therapist in Private Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Spencer Derifield, PT, DPT is a Physical Therapist provider in Newton, IA (NPI 1831838655).
Provider details
- NPI number
- 1831838655
- Entity type
- Individual
- Primary specialty
- Physical TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- PT, DPT
- Sex
- Male
- Sole proprietor
- No
- License
- 112544 (IA)
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
4 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
3,516 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 | 1,190 | $31 |
| Therapy Procedure Using Exercise to Develop Strength, Endurance, Range of Motion, and Flexibility, Each 15 Minutes97110 | 1,060 | $20 |
| Therapy Procedure to Re-Educate Brain-To-Nerve-To-Muscle Function, Each 15 Minutes97112 | 684 | $23 |
| Therapy Procedure Using Manual Technique, Each 15 Minutes97140 | 541 | $18 |
| Evaluation for Physical Therapy, Typically 30 Minutes97162 | 27 | $94 |
| Evaluation for Physical Therapy, Typically 45 Minutes97163 | 14 | $93 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2022-05-31
- Last updated
- 2022-05-31
- Certified
- 2022-05-31
Frequently asked questions
- What is Spencer Derifield's NPI number?
- Spencer Derifield's National Provider Identifier (NPI) is 1831838655, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Spencer Derifield's specialty?
- Spencer Derifield is listed in the NPPES registry with a primary specialty of Physical Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Spencer Derifield located?
- Spencer Derifield's practice location on file with NPPES is 1715 1st Ave E, Newton, IA 50208-4050.
- What is Spencer Derifield's phone number?
- The practice phone number listed in the NPPES registry for Spencer Derifield is (641) 791-9675.
- Does Spencer Derifield accept Medicare?
- Spencer Derifield is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Spencer Derifield's NPI active?
- Yes — Spencer Derifield's NPI (1831838655) is active in the NPPES registry as of the last update on 2022-05-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.