Regan Mazour
NPI 1235815846 · Physician Assistant · Billings, MT
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Regan Mazour is a Physician Assistant provider in Billings, MT (NPI 1235815846).
Provider details
- NPI number
- 1235815846
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- 148606 (MT)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
2 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
- 2023-06-27
- Last updated
- 2025-02-18
- Certified
- 2025-02-18
Frequently asked questions
- What is Regan Mazour's NPI number?
- Regan Mazour's National Provider Identifier (NPI) is 1235815846, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Regan Mazour's specialty?
- Regan Mazour is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Regan Mazour located?
- Regan Mazour's practice location on file with NPPES is 123 S 27th St, Billings, MT 59101-4227.
- What is Regan Mazour's phone number?
- The practice phone number listed in the NPPES registry for Regan Mazour is (406) 247-3350.
- Does Regan Mazour accept Medicare?
- Regan Mazour is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Regan Mazour's NPI active?
- Yes — Regan Mazour's NPI (1235815846) is active in the NPPES registry as of the last update on 2025-02-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.