Al Williams
NPI 1578076899 · Mental Health Counselor · Chicago, IL
Al Williams is a Mental Health Counselor provider in Chicago, IL (NPI 1578076899).
Provider details
- NPI number
- 1578076899
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
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
8 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
41 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 | 41 | $74 |
Typical Medicare-allowed amounts for these services range $74–$74 (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
- 2017-11-08
- Last updated
- 2021-10-12
- Certified
- 2021-09-23
Frequently asked questions
- What is Al Williams's NPI number?
- Al Williams's National Provider Identifier (NPI) is 1578076899, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Al Williams's specialty?
- Al Williams is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Al Williams located?
- Al Williams's practice location on file with NPPES is 8407 S Constance Ave, Chicago, IL 60617-2218.
- What is Al Williams's phone number?
- The practice phone number listed in the NPPES registry for Al Williams is (312) 721-2471.
- Is Al Williams's NPI active?
- Yes — Al Williams's NPI (1578076899) is active in the NPPES registry as of the last update on 2021-10-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.