Maine Medical Services LLC
NPI 1053878371 · Hospitalist Physician · Ellsworth, ME
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maine Medical Services LLC is a Hospitalist Physician organization in Ellsworth, ME (NPI 1053878371).
Provider details
- NPI number
- 1053878371
- Entity type
- Organization
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- David Istvan, President(865) 693-1000
Specialties & taxonomies
Allopathic & Osteopathic Physicians
- Internal Medicine Physician207R00000X
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 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
- 2019-02-22
- Last updated
- 2019-02-22
Frequently asked questions
- What is Maine Medical Services LLC's NPI number?
- Maine Medical Services LLC's National Provider Identifier (NPI) is 1053878371, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Maine Medical Services LLC?
- Maine Medical Services LLC is classified in the NPPES registry as Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Maine Medical Services LLC located?
- Maine Medical Services LLC's practice location on file with NPPES is 50 Union St, Ellsworth, ME 04605-1534.
- What is Maine Medical Services LLC's phone number?
- The practice phone number listed in the NPPES registry for Maine Medical Services LLC is (865) 693-1000.
- Does Maine Medical Services LLC accept Medicare?
- Maine Medical Services LLC 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 Maine Medical Services LLC?
- The authorized official listed on Maine Medical Services LLC's NPPES record is David Istvan, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Maine Medical Services LLC's NPI active?
- Yes — Maine Medical Services LLC's NPI (1053878371) is active in the NPPES registry as of the last update on 2019-02-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.