Active NPI
Daniel Jeffrey Griffin, MD
- Endocrinology, Diabetes & Metabolism Physician
- Portland, ME
National Provider Identifier
1831779867
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Endocrinology, Diabetes & Metabolism Physician
- License
- MD30506
- Practice address
- 84 Marginal Way Ste 700
Portland, ME 04101-2481 - Phone
- (207) 774-5816
- NPI assigned
- Apr 13, 2021
- Sex
- Male
- Sole proprietor
- Yes
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 |
|---|---|---|---|---|
| Endocrinology, Diabetes & Metabolism Physician | 207RE0101X | MD30506 | ME | Primary |
Addresses
Primary practice location
84 Marginal Way Ste 700
Portland, ME 04101-2481
Mailing address
100 Gannett Drive
Suite C
South Portland, ME 04106
Phone (207) 347-2947
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in AR
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20210614001784 | AR | Order and Referring Only - Internal Medicine | 8224438254 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| MD30506 | ME | MD | Endocrinology, Diabetes & Metabolism Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1618272000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1789603200000",
"number": "1831779867",
"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"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "84 MARGINAL WAY STE 700",
"city": "PORTLAND",
"state": "ME",
"postal_code": "041012481",
"telephone_number": "207-774-5816"
}
],
"practiceLocations": [],
"basic": {
"last_name": "GRIFFIN",
"first_name": "DANIEL",
"middle_name": "JEFFREY",
"credential": "MD",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2021-04-13",
"last_updated": "2026-09-17",
"certification_date": "2026-09-17",
"status": "A"
},
"taxonomies": [
{
"code": "207RE0101X",
"taxonomy_group": "",
"desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
"state": "ME",
"license": "MD30506",
"primary": true
}
],
"identifiers": [],
"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 Sep 17, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.