Karen Martin, PT
NPI 1841658044 · Physical Therapist · South Hamilton, MA
Enrolled with Medicare as Practitioner - Physical Therapist in Private Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Martin, PT is a Physical Therapist provider in South Hamilton, MA (NPI 1841658044).
Provider details
- NPI number
- 1841658044
- Entity type
- Individual
- Primary specialty
- Physical TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- PT
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Other 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
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
551 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 | 315 | $29 |
| Training for Self-Care Or Home Management, Each 15 Minutes97535 | 214 | $24 |
| Evaluation for Physical Therapy, Typically 30 Minutes97162 | 22 | $94 |
Typical Medicare-allowed amounts for these services range $24–$94 (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
- 2016-02-02
- Last updated
- 2024-03-01
- Certified
- 2024-02-20
Frequently asked questions
- What is Karen Martin's NPI number?
- Karen Martin's National Provider Identifier (NPI) is 1841658044, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Martin's specialty?
- Karen Martin is listed in the NPPES registry with a primary specialty of Physical Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Karen Martin located?
- Karen Martin's practice location on file with NPPES is 40 Asbury St, South Hamilton, MA 01982-1808.
- What is Karen Martin's phone number?
- The practice phone number listed in the NPPES registry for Karen Martin is (978) 468-4430.
- Does Karen Martin accept Medicare?
- Karen Martin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Martin's NPI active?
- Yes — Karen Martin's NPI (1841658044) is active in the NPPES registry as of the last update on 2024-03-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.