MATHERS CLINIC LLC
MATHERS CLINIC LLC is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1316237530, based in Crystal Lake, IL. The organization lists 5 taxonomy classifications, with Psychiatry Physician recorded as primary.
Getting there
The practice address on file is 145 S VIRGINIA ST, Crystal Lake, IL 60014. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 36039266 | IL | Counselor |
| 36039266 | IL | Child & Adolescent Psychiatry Physician |
This provider holds licence 36039266 issued in IL. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Part B Supplier - Clinic/group Practice
- PAC ID
- 7214111582
- Enrollment ID
- O20110411000671
Medicare enrolment is recorded as approved under the provider type Part B Supplier - Clinic/group Practice. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Psychiatry covers
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems. NUCC Health Care Provider Taxonomy, code 2084P0800X
All registered taxonomy codes
This provider registers 5 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 2084P0800X | Psychiatry Physician Psychiatry | — | — | primary |
| 207Q00000X | Family Medicine Physician | — | — | |
| 101Y00000X | Counselor | 36039266 | IL | |
| 103T00000X | Psychologist | — | — | |
| 2084P0804X | Child & Adolescent Psychiatry Physician Child & Adolescent Psychiatry | 36039266 | IL |
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1316237530 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Apr 8, 2011 |
| Last updated | Sep 26, 2025 |
| Status | Active |
| Practice address |
145 S VIRGINIA ST Crystal Lake, IL 60014 (815) 444-9999 Fax (815) 356-6680 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 3 | 1 | 6 | 2 | 3 | 7 | 5 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 3 | 2 | 6 | 4 | 3 | 5 | 5 | 6 |
Sum = 60 · next multiple of 10 = 60 · check digit = 0 · actual last digit = 0
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.