Active NPI
Pilar Maria Marguerite Holmstrom, PH.D.
- Clinical Psychologist
- Ventura, CA
National Provider Identifier
1295955854
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Clinical Psychologist
- License
- 27891
- Practice address
- 2580 E Main St Ste 100
Ventura, CA 93003-2640 - Phone
- (805) 402-3967
- Fax
- (805) 256-6494
- NPI assigned
- Apr 26, 2007
- Sex
- Female
- 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 |
|---|---|---|---|---|
| Clinical Psychologist | 103TC0700X | 27891 | CA | Primary |
Addresses
Primary practice location
2580 E Main St Ste 100
Ventura, CA 93003-2640
Mailing address
801 Seneca St
Ventura, CA 93001-1411
Phone (805) 402-3967
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)
- Not enrolled
- Credentials
- Doctor of Philosophy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 27891 | CA | MD | Dentist |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1177545600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1776902400000",
"number": "1295955854",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "801 SENECA ST",
"city": "VENTURA",
"state": "CA",
"postal_code": "930011411",
"telephone_number": "805-402-3967"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "2580 E MAIN ST STE 100",
"city": "VENTURA",
"state": "CA",
"postal_code": "930032640",
"telephone_number": "805-402-3967",
"fax_number": "805-256-6494"
}
],
"practiceLocations": [],
"basic": {
"last_name": "HOLMSTROM",
"first_name": "PILAR",
"middle_name": "MARIA MARGUERITE",
"name_prefix": "Dr.",
"credential": "PH.D.",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2007-04-26",
"last_updated": "2026-04-23",
"certification_date": "2026-04-23",
"status": "A"
},
"taxonomies": [
{
"code": "103TC0700X",
"taxonomy_group": "",
"desc": "Psychologist, Clinical",
"state": "CA",
"license": "27891",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Ventura, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 23, 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.