Robert William Witkowski, LAC-C

Robert William Witkowski is a Addiction (Substance Use Disorder) Counselor provider (Counselor) practicing in Helena, MT, registered in the NPPES registry with NPI 1578148854 since 2021. Practices at Boyd Andrew Community Services (listed at the same practice address in NPPES).

✓ Active NPI ✓ Valid NPI checksum

NPI	1578148854
Entity type	Individual (Type 1)
Name	Robert William Witkowski
Credential	LAC-C
Sex	Male
Practice address	60 S LAST CHANCE GULCH, Helena, MT, 59601
Phone	4064432343
Fax	4064435490
Enumeration date	2021-03-17
Last updated in NPPES	2021-03-17

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
101YA0400X	Addiction (Substance Use Disorder) Counselor	Primary	BBH-ACLC-LIC-32817	MT

Copy-ready billing details

Provider: Robert Witkowski, LAC-C
NPI: 1578148854
Taxonomy: 101YA0400X (Addiction (Substance Use Disorder) Counselor)
Address: 60 S LAST CHANCE GULCH, Helena, MT, 59601

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1841323706	Boyd Andrew Community Services	Organization	Substance Use Disorder Rehabilitation Clinic/Center	Helena, MT
1093006710	Jessica Westerhold	Individual	Addiction (Substance Use Disorder) Counselor	Helena, MT
1558757369	Andree O'Shea	Individual	Addiction (Substance Use Disorder) Counselor	Helena, MT
1699155051	Derek Browning	Individual	Addiction (Substance Use Disorder) Counselor	Helena, MT
1306218664	Kari Harcharik	Individual	Addiction (Substance Use Disorder) Counselor	Helena, MT
1326580622	Madisen Lindquist	Individual	Addiction (Substance Use Disorder) Counselor	Helena, MT
1154854487	Sarah Gonser	Individual	Addiction (Substance Use Disorder) Counselor	Helena, MT
1609397017	Jennifer Rivers	Individual	Clinical Social Worker	Helena, MT

Verify this record

Cross-check NPI 1578148854 against the authoritative CMS record: view Robert William Witkowski on the official NPPES registry .

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.

Frequently asked questions

What specialty is Robert Witkowski?

Robert Witkowski is registered in NPPES with the primary taxonomy of Addiction (Substance Use Disorder) Counselor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2021-03-17.