Active NPI
Geraldine Lee Ollila-Walker, D.O.
- Family Medicine Physician
- Falmouth, ME
National Provider Identifier
1043252364
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Family Medicine Physician
- License
- 1468
- Practice address
- 21B Northbrook Drive
Falmouth, ME 04105 - Phone
- (207) 805-8920
- Fax
- (207) 904-0501
- NPI assigned
- Jun 12, 2006
- Sex
- Female
- 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 |
|---|---|---|---|---|
| Family Medicine Physician | 207Q00000X | 1468 | ME | Primary |
Addresses
Primary practice location
21B Northbrook Drive
Falmouth, ME 04105
Mailing address
21B Northbrook Drive
Falmouth, ME 04105
Phone (207) 805-8920
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 241370099 | Medicaid | ME |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Osteopathy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 1468 | ME | MD | Family Medicine Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1150070400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1788307200000",
"number": "1043252364",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "21B NORTHBROOK DRIVE",
"city": "FALMOUTH",
"state": "ME",
"postal_code": "04105",
"telephone_number": "207-805-8920",
"fax_number": "207-904-0501"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "21B NORTHBROOK DRIVE",
"city": "FALMOUTH",
"state": "ME",
"postal_code": "04105",
"telephone_number": "207-805-8920",
"fax_number": "207-904-0501"
}
],
"practiceLocations": [],
"basic": {
"last_name": "OLLILA-WALKER",
"first_name": "GERALDINE",
"middle_name": "LEE",
"name_prefix": "Mrs.",
"credential": "D.O.",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2006-06-12",
"last_updated": "2026-09-02",
"status": "A"
},
"taxonomies": [
{
"code": "207Q00000X",
"taxonomy_group": "",
"desc": "Family Medicine",
"state": "ME",
"license": "1468",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "241370099",
"state": "ME"
}
],
"endpoints": [],
"other_names": []
}Other providers in Falmouth, ME
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 2, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.