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Edit this profileAt a glance
- 630 W Mercury St, Butte, MT 59701
About Mark Dennehy
Mark L. Dennehy is an addiction & substance abuse counselor practicing in Butte, MT. This provider record is associated with NPI 1336000165.
Factual summary compiled by Guide.md from public records; not written by this provider.
Specialty
Credentials & Licensing
Contact Information
- (406) 299-3448
- Email not available
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Practice Locations
630 W MERCURY ST
Butte, MT 59701
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other addiction & substance abuse counselors at this location 7
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Common questions
What does Mark L. Dennehy specialize in?
Mark L. Dennehy is an addiction & substance abuse counselor in Butte, MT. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Mark L. Dennehy located?
Mark L. Dennehy is listed at 630 W Mercury St, Butte, MT 59701. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Mark L. Dennehy's phone number?
The number on file is (406) 299-3448. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Mark L. Dennehy?
Mark L. Dennehy's National Provider Identifier is 1336000165. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
How much experience does Mark L. Dennehy have?
Mark L. Dennehy has 1+ years experience. Registered with an NPI since 2025. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Is Mark L. Dennehy's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Mark L. Dennehy. If this is you, claiming it is free.
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