John Duffy, PT
NPI 1679557235 · Physical Therapist · Pittsburgh, PA
Enrolled with Medicare as Practitioner - Physical Therapist in Private Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Duffy, PT is a Physical Therapist provider in Pittsburgh, PA (NPI 1679557235).
Provider details
- NPI number
- 1679557235
- Entity type
- Individual
- Primary specialty
- Physical TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- PT
- Sex
- Male
- Sole proprietor
- No
- License
- PT007441 (PA)
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
20 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
4,582 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 | 1,112 | $26 |
| Therapy Procedure Using Manual Technique, Each 15 Minutes97140 | 1,060 | $19 |
| Electrical Stimulation (unattended), to One Or More Areas for Indication(s) Other Than Wound Care, As Part of a Therapy Plan of CareG0283 | 1,042 | $8 |
| Therapy Procedure in a Group Setting97150 | 962 | $12 |
| Application of Blood Vessel Compression Device97016 | 324 | $8 |
| Evaluation for Physical Therapy, Typically 30 Minutes97162 | 82 | $95 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-12-06
- Last updated
- 2019-06-27
Frequently asked questions
- What is John Duffy's NPI number?
- John Duffy's National Provider Identifier (NPI) is 1679557235, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Duffy's specialty?
- John Duffy is listed in the NPPES registry with a primary specialty of Physical Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is John Duffy located?
- John Duffy's practice location on file with NPPES is 100 Siena Dr Ste 165, Pittsburgh, PA 15241-1361.
- What is John Duffy's phone number?
- The practice phone number listed in the NPPES registry for John Duffy is (412) 283-0260.
- Does John Duffy accept Medicare?
- John Duffy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Duffy's NPI active?
- Yes — John Duffy's NPI (1679557235) is active in the NPPES registry as of the last update on 2019-06-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.