Diane Kwak, PT
NPI 1598025777 · Physical Therapist · Berkeley Heights, NJ
Enrolled with Medicare as Practitioner - Physical Therapist in Private Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diane Kwak, PT is a Physical Therapist provider in Berkeley Heights, NJ (NPI 1598025777).
Provider details
- NPI number
- 1598025777
- Entity type
- Individual
- Primary specialty
- Physical TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- PT
- Sex
- Female
- Sole proprietor
- Yes
- License
- 40QA01261700 (NJ)
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
14 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
2,020 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 | 1,294 | $28 |
| Therapy Procedure Using Manual Technique, Each 15 Minutes97140 | 597 | $22 |
| Evaluation for Physical Therapy, Typically 30 Minutes97162 | 87 | $110 |
| Therapy Procedure to Re-Educate Brain-To-Nerve-To-Muscle Function, Each 15 Minutes97112 | 42 | $37 |
Typical Medicare-allowed amounts for these services range $22–$110 (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
- 2012-05-22
- Last updated
- 2014-07-25
Frequently asked questions
- What is Diane Kwak's NPI number?
- Diane Kwak's National Provider Identifier (NPI) is 1598025777, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diane Kwak's specialty?
- Diane Kwak is listed in the NPPES registry with a primary specialty of Physical Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Diane Kwak located?
- Diane Kwak's practice location on file with NPPES is 1 Diamond Hill Rd, Berkeley Heights, NJ 07922-2104.
- What is Diane Kwak's phone number?
- The practice phone number listed in the NPPES registry for Diane Kwak is (908) 277-8936.
- Does Diane Kwak accept Medicare?
- Diane Kwak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diane Kwak's NPI active?
- Yes — Diane Kwak's NPI (1598025777) is active in the NPPES registry as of the last update on 2014-07-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.