William Nordbrock, PH.D., ABPP
NPI 1881618965 · Clinical Neuropsychologist · Crystal Lake, IL
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Nordbrock, PH.D., ABPP is a Clinical Neuropsychologist provider in Crystal Lake, IL (NPI 1881618965).
Provider details
- NPI number
- 1881618965
- Entity type
- Individual
- Primary specialty
- Clinical NeuropsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D., ABPP
- Sex
- Male
- Sole proprietor
- Yes
- License
- 071-004915 (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
105 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, 30 Minutes90832 | 34 | $66 |
| Psychotherapy, 1 Hour90837 | 33 | $128 |
| Psychotherapy, 45 Minutes90834 | 21 | $87 |
| Psychiatric Services Complicated By Communication Factor90785 | 17 | $12 |
Typical Medicare-allowed amounts for these services range $12–$128 (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
- 2006-07-26
- Last updated
- 2012-07-19
Frequently asked questions
- What is William Nordbrock's NPI number?
- William Nordbrock's National Provider Identifier (NPI) is 1881618965, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Nordbrock's specialty?
- William Nordbrock is listed in the NPPES registry with a primary specialty of Clinical Neuropsychologist (Behavioral Health & Social Service Providers).
- Where is William Nordbrock located?
- William Nordbrock's practice location on file with NPPES is 755 Mcardle Dr, Crystal Lake, IL 60014-1717.
- What is William Nordbrock's phone number?
- The practice phone number listed in the NPPES registry for William Nordbrock is (815) 355-8589.
- Does William Nordbrock accept Medicare?
- William Nordbrock is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Nordbrock's NPI active?
- Yes — William Nordbrock's NPI (1881618965) is active in the NPPES registry as of the last update on 2012-07-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.