John Molloy, MD
NPI 1609877471 · Geriatric Medicine (Internal Medicine) Physician · Great Falls, MT
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Molloy, MD is a Geriatric Medicine (Internal Medicine) Physician provider in Great Falls, MT (NPI 1609877471).
Provider details
- NPI number
- 1609877471
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- License
- 3986 (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
- 2005-08-03
- Last updated
- 2007-07-08
Frequently asked questions
- What is John Molloy's NPI number?
- John Molloy's National Provider Identifier (NPI) is 1609877471, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Molloy's specialty?
- John Molloy is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is John Molloy located?
- John Molloy's practice location on file with NPPES is 3000 15th Avenue South, Great Falls, MT 59405.
- What is John Molloy's phone number?
- The practice phone number listed in the NPPES registry for John Molloy is (406) 454-2171.
- Does John Molloy accept Medicare?
- John Molloy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Molloy's NPI active?
- Yes — John Molloy's NPI (1609877471) 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.