Claire Trefethen, OTD
NPI 1740950138 · Occupational Therapist · Brooklyn, NY
Enrolled with Medicare as Practitioner - Occupational Therapist in Private Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Claire Trefethen, OTD is a Occupational Therapist provider in Brooklyn, NY (NPI 1740950138).
Provider details
- NPI number
- 1740950138
- Entity type
- Individual
- Primary specialty
- Occupational TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- OTD
- Sex
- Female
- Sole proprietor
- Yes
- License
- OTH-008610 (AZ)
Specialties & taxonomies
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
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
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
1,439 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 Exercise to Develop Strength, Endurance, Range of Motion, and Flexibility, Each 15 Minutes97110 | 543 | $25 |
| Therapy Procedure Using Functional Activities97530 | 410 | $34 |
| Training for Self-Care Or Home Management, Each 15 Minutes97535 | 194 | $28 |
| Therapy Procedure Using Manual Technique, Each 15 Minutes97140 | 155 | $23 |
| Therapy Procedure to Re-Educate Brain-To-Nerve-To-Muscle Function, Each 15 Minutes97112 | 116 | $33 |
| Evaluation for Occupational Therapy, Typically 30 Minutes97165 | 21 | $112 |
Practice location
Mailing address
Additional practice locations (1)
- 65 E University DrTempe, AZ 85281-1091Phone: (480) 317-4444
Registry dates
- Enumerated
- 2021-09-16
- Last updated
- 2025-04-17
- Certified
- 2025-04-17
Frequently asked questions
- What is Claire Trefethen's NPI number?
- Claire Trefethen's National Provider Identifier (NPI) is 1740950138, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Claire Trefethen's specialty?
- Claire Trefethen is listed in the NPPES registry with a primary specialty of Occupational Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Claire Trefethen located?
- Claire Trefethen's practice location on file with NPPES is 41 Clark St, Brooklyn, NY 11201-2415.
- What is Claire Trefethen's phone number?
- The practice phone number listed in the NPPES registry for Claire Trefethen is (646) 518-5566.
- Does Claire Trefethen accept Medicare?
- Claire Trefethen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Claire Trefethen's NPI active?
- Yes — Claire Trefethen's NPI (1740950138) is active in the NPPES registry as of the last update on 2025-04-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.