LYNN MARIE GROSULAK LCPC
LYNN MARIE GROSULAK LCPC is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1659545168, based in Billings, MT. It is classified under Mental Health Counselor.
Getting there
The practice address on file is 710 GRAND AVE SUITE 6, Billings, MT 59101. 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 |
|---|---|---|
| 1114 LCPC | MT | Mental Health Counselor primary |
This provider holds licence 1114 LCPC issued in MT. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
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 Mental Health covers
Definition to come... NUCC Health Care Provider Taxonomy, code 101YM0800X
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 | 1659545168 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Apr 15, 2008 |
| Last updated | Nov 13, 2009 |
| Status | Active |
| Practice address |
710 GRAND AVE SUITE 6 Billings, MT 59101 (406) 855-9446 Fax (406) 294-0967 |
| Mailing address |
PO BOX 20794 Billings, MT 59104 |
| Other identifiers |
0256173
(MT) 000741370 · BCBS (MT) |
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 | 6 | 5 | 9 | 5 | 4 | 5 | 1 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 6 | 1 | 9 | 1 | 4 | 1 | 1 | 3 |
Sum = 52 · next multiple of 10 = 60 · check digit = 8 · actual last digit = 8
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.