Active NPI
Gregg Christensen, PA
- Physician Assistant
- Greenville, ME
National Provider Identifier
1790733376
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Physician Assistant
- License
- PA-111
- Practice address
- 364 Pritham Ave
Greenville, ME 04441 - Phone
- (207) 695-5220
- NPI assigned
- May 5, 2006
- Sex
- Male
- Sole proprietor
- No
Organizations & group practices 1
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
Owned or controlled facilities with NPI records 1
Facilities whose Medicare enrollment lists this provider as an owner, officer, director or managing party.
-
- Medicare Defined Swing Bed Hospital Unit
- Greenville, ME
- NPI 1104834977
Corporate Director
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: No
Enrollment records 1
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20040813000993 | ME | Practitioner - Physician Assistant | 8729996210 | Reassigns benefits to 1 organization |
All facility ownership & control disclosures 1
Medicare enrollment filesFacilities whose Medicare enrollment lists this provider’s PECOS associate ID as an owner or managing party.
| Facility | Type | Role | Since |
|---|---|---|---|
| Charles a Dean Memorial Hospital | Hospital | Corporate Director | Jan 3, 2014 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Physician Assistant
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| PA-111 | ME | MD | Physician Assistant |
Specialties & licenses 1
NPPES NPI Registry| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Physician Assistant | 363A00000X | PA-111 | ME | Primary |
Addresses
NPPES NPI RegistryPrimary practice location
364 Pritham Ave
Greenville, ME 04441
Mailing address
PO Box 1129
Greenville, ME 04441-1129
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format, last updated by the provider on Jul 13, 2026.
{
"created_epoch": "1146787200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1790733376",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 1129",
"city": "GREENVILLE",
"state": "ME",
"postal_code": "044411129"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "364 PRITHAM AVE",
"city": "GREENVILLE",
"state": "ME",
"postal_code": "04441",
"telephone_number": "207-695-5220"
}
],
"practiceLocations": [],
"basic": {
"last_name": "CHRISTENSEN",
"first_name": "GREGG",
"credential": "PA",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-05-05",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "363A00000X",
"taxonomy_group": "",
"desc": "Physician Assistant",
"state": "ME",
"license": "PA-111",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Greenville, ME
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.