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MS. COURTNEY BIRTWISTLE FNP-C
NPI 1194204297
Nurse Practitioner in La Mesa, CA

Active since August 09, 2018PECOS Enrolled
5555 GROSSMONT CENTER DR, LA MESA, CA 91942(619) 740-6000 Get Directions Write a Review

NPPES record last updated: March 27, 2025. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Mar 27, 2025, Nov 7, 2018, Aug 9, 2018 (3 updates tracked since 2018).

About Ms. Courtney Birtwistle Fnp-c NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MS. COURTNEY BIRTWISTLE FNP-C (NPI 1194204297) is an individual nurse practitioner in La Mesa, California, licensed in California (95009647) and active in the NPI registry since August 2018. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1194204297
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameMS. COURTNEY BIRTWISTLECredential: FNP-C
Location Address5555 GROSSMONT CENTER DRLa Mesa, CA 91942-3019
Mailing Address5555 Grossmont Center DrLa Mesa, CA 91942-3019 · (619) 740-6000
Phone(619) 740-6000
Sole ProprietorNo
Enumeration DateAugust 9, 2018
Last NPPES UpdateMarch 27, 20253 updates tracked since enumeration
NPPES CertifiedMarch 27, 2025
✔ NPI 1194204297 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in CA · 95009647
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
5555 GROSSMONT CENTER DR, La Mesa, CA 91942
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Other Names 1

Former Name (1)Ms. Courtney Pietsch Fnp-c

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ms. Courtney Birtwistle Fnp-c is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91942 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$94.87 typical visit price
range $62.10 – $184.71
Typical copayment $23.71 (range $15.52 – $46.17)
Most-billed visit code 99203
Established Patient
$108.42 typical visit price
range $20.62 – $151.42
Typical copayment $27.10 (range $5.15 – $37.85)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ALHELI BAILY
Registered Nurse
5555 GROSSMONT CENTER DR
LA MESA, CA 91942
San Diego County (619) 740-6000
MISS APRIL JULIA CROMIE PMHNP-BC, APRN, MSN
Nurse Practitioner (Psychiatric/Mental Health)
5555 GROSSMONT CENTER DR, 5555 GROSSMONT CENTER DR
LA MESA, CA 91942
San Diego County (858) 296-6182
TEAGAN SHEA COLEMAN
Registered Nurse (Emergency)
5555 GROSSMONT CENTER DR
LA MESA, CA 91942
San Diego County (619) 740-6000
BRENDAN J LEE DO
Emergency Medicine
5555 GROSSMONT CENTER DR
LA MESA, CA 91942
San Diego County (619) 644-4401
PAUL Y ABOU MD
Internal Medicine
5555 GROSSMONT CENTER DR
LA MESA, CA 91942
San Diego County (619) 465-0711
MRS. AMY ELIZABETH VU P.A.-C
Physician Assistant
5555 GROSSMONT CENTER DR
LA MESA, CA 91942
San Diego County (619) 740-6000
CHRISTA ANN LANDOWSKA AREFIEVA MD
Emergency Medicine
5555 GROSSMONT CENTER DR
LA MESA, CA 91942
San Diego County (619) 740-6000
TYLER QUOC NGUYEN
Pharmacist
5555 GROSSMONT CENTER DR
LA MESA, CA 91942
San Diego County (619) 740-6000

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Courtney Birtwistle's NPI number?

The NPI number for Courtney Birtwistle is 1194204297. It was assigned to this individual provider in the NPPES registry on August 9, 2018. The provider is also known as Ms. Courtney Pietsch Fnp-C.

Where is Courtney Birtwistle located?

Courtney Birtwistle practices at 5555 Grossmont Center Dr, La Mesa, CA 91942. The listed phone number is (619) 740-6000.

What is Courtney Birtwistle's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Courtney Birtwistle enrolled in Medicare?

Yes. Courtney Birtwistle is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Courtney Birtwistle was last updated on March 27, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.