STEP BY STEP SUPPORTIVE SERVICES
STEP BY STEP SUPPORTIVE SERVICES is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1861815003, based in Brookline, MA. The organization lists 12 taxonomy classifications, with Mental Illness Community Based Residential Treatment Facility recorded as primary.
Getting there
The practice address on file is 1470 BEACON ST B, Brookline, MA 02446. 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
NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Community Based Residential Treatment Facility, Mental Illness covers
A home-like residential facility providing psychiatric treatment and psycho/social rehabilitative services to individuals diagnosed with mental illness. NUCC Health Care Provider Taxonomy, code 320800000X
All registered taxonomy codes
This provider registers 12 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 320800000X | Mental Illness Community Based Residential Treatment Facility | — | — | primary |
| 1041C0700X | Clinical Social Worker Clinical | — | — | |
| 101YP2500X | Professional Counselor Professional | — | — | |
| 320900000X | Intellectual and/or Developmental Disabilities Community Based Residential Treatment Facility | — | — | |
| 101YM0800X | Mental Health Counselor Mental Health | — | — | |
| 253Z00000X | In Home Supportive Care Agency | — | — | |
| 251B00000X | Case Management Agency | — | — | |
| 101Y00000X | Counselor | — | — | |
| 101YA0400X | Addiction (Substance Use Disorder) Counselor Addiction (Substance Use Disorder) | — | — | |
| 104100000X | Social Worker | — | — | |
| 221700000X | Art Therapist | — | — | |
| 251S00000X | Community/Behavioral Health Agency | — | — |
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 | 1861815003 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Jan 23, 2014 |
| Last updated | Oct 29, 2025 |
| Status | Active |
| Practice address |
1470 BEACON ST B Brookline, MA 02446 (617) 277-6140 Fax (617) 277-0168 |
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 | 8 | 6 | 1 | 8 | 1 | 5 | 0 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 8 | 3 | 1 | 7 | 1 | 1 | 0 | 0 |
Sum = 47 · next multiple of 10 = 50 · check digit = 3 · actual last digit = 3
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.