Jonathan C Fellers MD PA LLC
NPI 1457823817 · Multi-Specialty Clinic/Center · Portland, ME
Jonathan C Fellers MD PA LLC is a Multi-Specialty Clinic/Center organization in Portland, ME (NPI 1457823817).
Provider details
- NPI number
- 1457823817
- Entity type
- Organization
- Primary specialty
- Multi-Specialty Clinic/CenterAmbulatory Health Care Facilities
- Organization subpart
- No
- Authorized official
- Jonathan Fellers, Owner(207) 221-0635
Specialties & taxonomies
Ambulatory Health Care Facilities
Behavioral Health & Social Service Providers
- Mental Health Counselor101YM0800X
Behavioral Health & Social Service Providers
- Independent Medical Examiner Physician202C00000X
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
- Psychiatry Physician2084P0800X
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
Other names (DBA / former)
- Doing business as
- Cortex Behavioral Health
Registry dates
- Enumerated
- 2018-12-26
- Last updated
- 2025-08-22
- Certified
- 2025-08-22
Frequently asked questions
- What is Jonathan C Fellers MD PA LLC's NPI number?
- Jonathan C Fellers MD PA LLC's National Provider Identifier (NPI) is 1457823817, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Jonathan C Fellers MD PA LLC?
- Jonathan C Fellers MD PA LLC is classified in the NPPES registry as Multi-Specialty Clinic/Center (Ambulatory Health Care Facilities).
- Where is Jonathan C Fellers MD PA LLC located?
- Jonathan C Fellers MD PA LLC's practice location on file with NPPES is 1 City Ctr Ste 8130, Portland, ME 04101-6420.
- What is Jonathan C Fellers MD PA LLC's phone number?
- The practice phone number listed in the NPPES registry for Jonathan C Fellers MD PA LLC is (207) 221-0635.
- Who is the authorized official for Jonathan C Fellers MD PA LLC?
- The authorized official listed on Jonathan C Fellers MD PA LLC's NPPES record is Jonathan Fellers, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Jonathan C Fellers MD PA LLC's NPI active?
- Yes — Jonathan C Fellers MD PA LLC's NPI (1457823817) is active in the NPPES registry as of the last update on 2025-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.