Mario O Belledonne PA
NPI 1477855823 · Internal Medicine Physician · Potomac, MD
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mario O Belledonne PA is a Internal Medicine Physician organization in Potomac, MD (NPI 1477855823).
Provider details
- NPI number
- 1477855823
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Mario Belledonne, President(301) 605-7878
- License
- D-23177 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 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
- 2010-11-17
- Last updated
- 2021-05-12
- Certified
- 2021-05-12
Frequently asked questions
- What is Mario O Belledonne PA's NPI number?
- Mario O Belledonne PA's National Provider Identifier (NPI) is 1477855823, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Mario O Belledonne PA?
- Mario O Belledonne PA is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mario O Belledonne PA located?
- Mario O Belledonne PA's practice location on file with NPPES is 8200 Tuckerman Ln, Potomac, MD 20854-3744.
- What is Mario O Belledonne PA's phone number?
- The practice phone number listed in the NPPES registry for Mario O Belledonne PA is (301) 605-7878.
- Does Mario O Belledonne PA accept Medicare?
- Mario O Belledonne PA is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Mario O Belledonne PA?
- The authorized official listed on Mario O Belledonne PA's NPPES record is Mario Belledonne, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Mario O Belledonne PA's NPI active?
- Yes — Mario O Belledonne PA's NPI (1477855823) is active in the NPPES registry as of the last update on 2021-05-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.