Active NPI
Courtney Birtwistle, FNP-C
- Nurse Practitioner
- La Mesa, CA
National Provider Identifier
1194204297
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Nurse Practitioner
- License
- 95009647
- Practice address
- 5555 Grossmont Center Dr
La Mesa, CA 91942-3019 - Phone
- (619) 740-6000
- NPI assigned
- Aug 9, 2018
- Last updated
- Mar 27, 2025
- 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 |
|---|---|---|---|---|
| Nurse Practitioner | 363L00000X | 95009647 | CA | Primary |
Addresses
Primary practice location
5555 Grossmont Center Dr
La Mesa, CA 91942-3019
Mailing address
5555 Grossmont Center Dr
La Mesa, CA 91942-3019
Phone (619) 740-6000
Other names 1
- Ms. Courtney Pietsch
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in CA
- 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 |
|---|---|---|---|---|
| I20220706002234 | CA | Order and Referring Only - Nurse Practitioner | 5496135618 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1533772800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1743033600000",
"number": "1194204297",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "5555 GROSSMONT CENTER DR",
"city": "LA MESA",
"state": "CA",
"postal_code": "919423019",
"telephone_number": "619-740-6000"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "5555 GROSSMONT CENTER DR",
"city": "LA MESA",
"state": "CA",
"postal_code": "919423019",
"telephone_number": "619-740-6000"
}
],
"practiceLocations": [],
"basic": {
"last_name": "BIRTWISTLE",
"first_name": "COURTNEY",
"name_prefix": "Ms.",
"credential": "FNP-C",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2018-08-09",
"last_updated": "2025-03-27",
"certification_date": "2025-03-27",
"status": "A"
},
"taxonomies": [
{
"code": "363L00000X",
"taxonomy_group": "",
"desc": "Nurse Practitioner",
"state": "CA",
"license": "95009647",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": [
{
"first_name": "COURTNEY",
"last_name": "PIETSCH",
"prefix": "MS.",
"credential": "FNP-C",
"code": "1",
"type": "Former Name"
}
]
}
Other providers in La Mesa, CA
- Bienestar Child and Family Therapy, Inc.
- Big Steps Physical Therapy, P.C.
- Charles Robert Bilbrey III, PH.D.
- Bina Adigopula, MD, Inc. (Grossmont Pediatrics, Inc.)
- Biosolutions Clinical Research Center
- Bishop Mental Health, a Professional Nursing Corporation
- Madison C Blades
- Carly Santos Blalack, LCSW, PPS
- Katherine Blanchard
- Deanna Bloom
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 27, 2025; 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.