James Kowal, PH.D.
NPI 1255348777 · Professional Counselor · Naperville, IL
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Kowal, PH.D. is a Professional Counselor provider in Naperville, IL (NPI 1255348777).
Provider details
- NPI number
- 1255348777
- Entity type
- Individual
- Primary specialty
- Professional CounselorBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 180-003245 (IL)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 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
1,177 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) |
|---|---|---|
| Psychotherapy, 45 Minutes90834 | 599 | $104 |
| Psychotherapy, 1 Hour90837 | 562 | $153 |
| Psychiatric Diagnostic Evaluation90791 | 16 | $174 |
Typical Medicare-allowed amounts for these services range $104–$174 (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
- 2006-08-01
- Last updated
- 2026-03-26
- Certified
- 2026-03-26
Frequently asked questions
- What is James Kowal's NPI number?
- James Kowal's National Provider Identifier (NPI) is 1255348777, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Kowal's specialty?
- James Kowal is listed in the NPPES registry with a primary specialty of Professional Counselor (Behavioral Health & Social Service Providers).
- Where is James Kowal located?
- James Kowal's practice location on file with NPPES is 1110 N Washington St, Naperville, IL 60563-2767.
- What is James Kowal's phone number?
- The practice phone number listed in the NPPES registry for James Kowal is (630) 637-4002.
- Does James Kowal accept Medicare?
- James Kowal is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Kowal's NPI active?
- Yes — James Kowal's NPI (1255348777) is active in the NPPES registry as of the last update on 2026-03-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.