Michael Hennessy, MD
NPI 1124029616 · Orthopaedic Surgery Physician · Great Falls, MT
Michael Hennessy, MD is a Orthopaedic Surgery Physician provider in Great Falls, MT (NPI 1124029616).
Provider details
- NPI number
- 1124029616
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- License
- 7944 (MT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
21 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-08-09
- Last updated
- 2007-07-08
Frequently asked questions
- What is Michael Hennessy's NPI number?
- Michael Hennessy's National Provider Identifier (NPI) is 1124029616, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Hennessy's specialty?
- Michael Hennessy is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Hennessy located?
- Michael Hennessy's practice location on file with NPPES is 3000 16th Ave S, Great Falls, MT 59405.
- What is Michael Hennessy's phone number?
- The practice phone number listed in the NPPES registry for Michael Hennessy is (406) 454-2171.
- Is Michael Hennessy's NPI active?
- Yes — Michael Hennessy's NPI (1124029616) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.