Courtney Birtwistle, FNP-C
Nurse Practitioner · La Mesa, CA
Courtney Birtwistle, FNP-C is a nurse practitioner with a practice address in La Mesa, California, and NPI 1194204297, issued on Aug 9, 2018. Check the license (California 95009647, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Courtney Birtwistle
- Credential
- FNP-C
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 95009647 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5555 Grossmont Center Dr, La Mesa, CA 91942
- Phone
- (619) 740-6000
- Enumerated
- Aug 9, 2018
- Record last updated
- Mar 27, 2025
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 8,223 in California → Look up another NPI →
Also registered at 5555 Grossmont Center Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Kikelomo Aluko, MSN, APRN, PMHNP BCPsychiatric/Mental Health Nurse Practitioner1083584346
- Vian AmerPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1972186609
Verify Courtney Birtwistle in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 95009647Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% fewer Medicare Part D claims than the average nurse practitioner in 2024
177 Medicare Part D claims for 65 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Levetiracetam16 claims
- Gabapentin13 claims
- Nortriptyline Hcl11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $1,956.28
71 payments; by number, the most common kind was food and beverage; the largest payer was Ucb, Inc. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Courtney Birtwistle among 8,223 nurse practitioner records in California
Courtney Birtwistle, FNP-C is one of 8,223 nurse practitioner records with a practice address in California. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 56% of them.
- NPI issued2018 · 56% of these records are older, 39% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileNo · 42% of these records are
- Record last updated2025 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
25 nurse practitioner records list a practice address in La Mesa
They are 25 of the 2,168 NPPES records with a practice address in La Mesa, and 8,223 nurse practitioner records in California.
All 8,223 in California → Every provider in La Mesa → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Patricia Cheney, NURSE PRACTITIONERLa Mesa, CA 919421699776963
- Susan Dealy, CPNPLa Mesa, CA 919421285722843
- Teresa Gieszl, NPLa Mesa, CA 919421740613819
- Wahida Hamid, FNPLa Mesa, CA 919421164812293
- Sharon Hunkins, N.P.La Mesa, CA 919421730214313
- Marianne Katz, NPLa Mesa, CA 919421497803431
- Kimberly Lane, NURSE PRACTIONERLa Mesa, CA 919421457670119
- Kimberly Lee, NP-CLa Mesa, CA 919421578948089
Common questions
What is Courtney Birtwistle, FNP-C's NPI number?
Courtney Birtwistle, FNP-C's National Provider Identifier (NPI) is 1194204297, issued on Aug 9, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Courtney Birtwistle, FNP-C located?
The NPPES record lists a practice address at 5555 Grossmont Center Dr, La Mesa, CA, 91942. Phone: (619) 740-6000. Providers update this record themselves, so call before visiting.
How can I verify Courtney Birtwistle, FNP-C's license?
NPPES lists California license number 95009647, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Courtney Birtwistle, FNP-C prescribe under Medicare Part D?
In 2024, Courtney Birtwistle, FNP-C had 177 Medicare Part D claims for 65 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.