Active NPI
Daniel L Loiselle, MD
- Internal Medicine Physician
- Portland, ME
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Internal Medicine Physician
- License
- 014644
- Practice address
- 84 Marginal Way
Suite 700
Portland, ME 04101 - Phone
- (207) 774-5816
- Fax
- (207) 523-8595
- NPI assigned
- Mar 17, 2006
- Last updated
- Mar 16, 2026
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Internal Medicine Physician | 207R00000X | 014644 | ME | Primary |
Addresses
Primary practice location
84 Marginal Way
Suite 700
Portland, ME 04101
Mailing address
100 Gannett Drive
Suite C
South Portland, ME 04106
Phone (207) 347-2947
Other identifiers 3
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 2580Z0099 | Medicaid | ME | |
| 1041117 | Other | AETNA | |
| 030443 | Other | ANTHEM |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in ME
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Internal Medicine
- Education
- Geisel School of Medicine at Dartmouth, 1995
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
84 Marginal Way
Portland, ME 04101-2443
Phone (207) 774-5816
Hospital & facility affiliations
- Elara Caring
- Centerwell Home Health
- Mainehealth Home Health and Hospice
- Northern Light Home Care & Hospice
- Andwell Health Partners
- Mainehealth Maine Medical Center
Procedures performed for Medicare patients
| Procedure | Number of procedures |
|---|---|
| Removal of skin lesions | 1-10 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 014644 | ME | MD | Internal Medicine Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Intermed, PA | Current | Accepting new patients | |
| Intermed, PA | Internal Medicine | Current | Accepting new patients |
| Mainehealth | Past | Accepting new patients | |
| Intermed, PA | Past | Accepting new patients |
Locations
84 Marginal Way
Portland, ME 04101
Phone (207) 774-5816
84 Marginal Way
Ste 700
Portland, ME 04101
Phone (207) 347-2898
100 Foden Rd
South Portland, ME 04106
Phone (207) 828-1122
100 Foden Rd
Ste 100
South Portland, ME 04106
Phone (207) 874-1489
100 Foden Rd
Ste W-100
South Portland, ME 04106
Phone (207) 523-3900
100 Foden Rd
Ste W-203
South Portland, ME 04106
Phone (207) 523-3900
100 Gannett Dr
Ste C
South Portland, ME 04106
Phone (207) 523-3649
238 Western Ave
South Portland, ME 04106
Phone (207) 767-2174
Interoperability endpoints
- daniel.loiselle@int.eclinicaldirectplus.com
Ownership & related parties
All facility ownership & control disclosures 24
Facilities whose Medicare enrollment lists this provider’s PECOS associate ID as an owner or managing party.
| Facility | Type | Role | Since |
|---|---|---|---|
| Mainehealth Maine Medical Center | Hospital | Corporate Director | Jan 1, 2019 |
| Mainehealth | Hospital | Corporate Director | Jan 1, 2019 |
| Mainehealth Behavioral Health at Spring Harbor | Hospital | Corporate Director | Jan 1, 2019 |
| Mainehealth Waldo Hospital | Hospital | Corporate Director | Jan 1, 2019 |
| Mainehealth Waldo Hospital Swing Bed | Hospital | Corporate Director | Jan 1, 2019 |
| Mainehealth Pen Bay Hospital | Hospital | Corporate Director | Jan 1, 2019 |
| Mainehealth Lincoln Hospital | Hospital | Corporate Director | Jan 1, 2019 |
| Mainehealth Lincoln Hospital Swing Bed | Hospital | Corporate Director | Jan 1, 2019 |
| Mainehealth Stephens Hospital | Hospital | Corporate Director | Jan 1, 2019 |
| Mainehealth Mid Coast Hospital | Hospital | Corporate Director | Jan 1, 2019 |
| Mainehealth Franklin Hospital | Hospital | Corporate Director | Oct 1, 2023 |
| Mainehealth Franklin Hospital | Hospital | Corporate Director | Oct 1, 2023 |
| Mainehealth Pen Bay Hospital Swing Bed | Hospital | Corporate Director | Jan 1, 2023 |
| St Andrews Village | Skilled nursing facility | Corporate Director Trustee of the SNF |
Jan 1, 2019 Jan 1, 2019 |
| Mainehealth Arthur Jewell Health Center | Rural health clinic | Corporate Director | Jan 1, 2019 |
| Mainehealth Stockton Springs Health Center | Rural health clinic | Corporate Director | Jan 1, 2019 |
| Mainehealth John F Andrews Health Center | Rural health clinic | Corporate Director | Jan 1, 2019 |
| Mainehealth Waldoboro Health Center | Rural health clinic | Corporate Director | Jan 1, 2019 |
| Mainehealth Herbert and Roberta Watson Health Center | Rural health clinic | Corporate Director | Jan 1, 2019 |
| Mainehealth Medd Health Center | Rural health clinic | Corporate Director | Jan 1, 2019 |
| Mainehealth Ripley Health Center | Rural health clinic | Corporate Director | Jan 1, 2019 |
| Mainehealth Livermore Falls Health Center | Rural health clinic | Corporate Director | Jan 1, 2019 |
| Mainehealth Franklin Health Center | Rural health clinic | Corporate Director | Jan 1, 2019 |
| Mainehealth Mt Blue Health Center | Rural health clinic | Corporate Director | Jan 1, 2019 |
Owned or controlled facilities with NPI records 58
Facilities whose Medicare enrollment lists this provider as an owner, officer, director or managing party.
-
dba MMP Orthopedics ( Div of Orthopedic Trauma & Fracture Care)
- Orthopaedic Trauma Physician
- Portland, ME
- NPI 1003113127
Corporate Director
-
dba MaineHealth Medd Health Center
- Rural Health Clinic/Center
- Norway, ME
- NPI 1053601864
Corporate Director
-
dba Maine Hemophilia and Thrombosis Center
- General Acute Care Hospital
- Scarborough, ME
- NPI 1053647024
Corporate Director
-
dba Maine Medical Center Infectious Disease
- Infectious Disease Physician
- Portland, ME
- NPI 1073701157
Corporate Director
-
dba Geriatric Consults
- Geriatric Medicine (Internal Medicine) Physician
- Portland, ME
- NPI 1164610242
Corporate Director
-
dba MaineHealth Franklin Health Center
- Rural Health Clinic/Center
- Farmington, ME
- NPI 1245873082
Corporate Director
-
dba MMC Pediatric Intensive Care Unit
- Pediatric Critical Care Medicine Physician
- Portland, ME
- NPI 1265536817
Corporate Director
-
dba MaineHealth Primary Care Family Medicine
- Rural Health Clinic/Center
- Stockton Springs, ME
- NPI 1295800118
Corporate Director
-
dba MaineHealth Lincoln Hospital Swing Bed
- Medicare Defined Swing Bed Hospital Unit
- Damariscotta, ME
- NPI 1316035116
Corporate Director
Organizations & group practices 4
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.
-
- Internal Medicine Physician
- South Portland, ME
- NPI 1467422733
-
- Pediatrics Physician
- South Portland, ME
- NPI 1295607836
-
- Diagnostic Radiology Physician
- South Portland, ME
- NPI 1326486101
-
dba MaineHealth Pharmacy Brighton Ave
- Community/Retail Pharmacy
- Portland, ME
- NPI 1013868181
Hospital & facility affiliations 42
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
dba CenterWell home Health
- Home Health Agency
- South Portland, ME
- NPI 1255362943
-
- Community Based Hospice Care Agency
- Scarborough, ME
- NPI 1972594232
-
dba MMP Orthopedics ( Div of Orthopedic Trauma & Fracture Care)
- Orthopaedic Trauma Physician
- Portland, ME
- NPI 1003113127
Hospital
-
dba Maine Hemophilia and Thrombosis Center
- General Acute Care Hospital
- Scarborough, ME
- NPI 1053647024
-
dba Maine Medical Center Infectious Disease
- Infectious Disease Physician
- Portland, ME
- NPI 1073701157
Hospital
-
dba Geriatric Consults
- Geriatric Medicine (Internal Medicine) Physician
- Portland, ME
- NPI 1164610242
Hospital
-
dba MMC Pediatric Intensive Care Unit
- Pediatric Critical Care Medicine Physician
- Portland, ME
- NPI 1265536817
Hospital
-
- General Acute Care Hospital
- Portland, ME
- NPI 1346267879
-
dba Maine Medical Partners Endocrinlogy & Diabetes
- Endocrinology, Diabetes & Metabolism Physician
- Scarborough, ME
- NPI 1356651038
Hospital
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1142553600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1773619200000",
"number": "1316906589",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "100 GANNETT DRIVE",
"address_2": "SUITE C",
"city": "SOUTH PORTLAND",
"state": "ME",
"postal_code": "04106",
"telephone_number": "207-347-2947",
"fax_number": "207-874-2317"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "84 MARGINAL WAY",
"address_2": "SUITE 700",
"city": "PORTLAND",
"state": "ME",
"postal_code": "04101",
"telephone_number": "207-774-5816",
"fax_number": "207-523-8595"
}
],
"practiceLocations": [],
"basic": {
"last_name": "LOISELLE",
"first_name": "DANIEL",
"middle_name": "L",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-03-17",
"last_updated": "2026-03-16",
"certification_date": "2026-03-16",
"status": "A"
},
"taxonomies": [
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "ME",
"license": "014644",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "2580Z0099",
"state": "ME"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "AETNA",
"identifier": "1041117",
"state": null
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "ANTHEM",
"identifier": "030443",
"state": null
}
],
"endpoints": [],
"other_names": []
}
Other providers in Portland, ME
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 16, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; facility enrollments, owners and changes of ownership; Provider of Services certification data; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.