Leona Rose Mason, FNP
Family Nurse Practitioner · Sylmar, CA
Leona Rose Mason, FNP is a family nurse practitioner with a practice address in Sylmar, California, and NPI 1396070512, issued on Oct 6, 2009. Check the license (California 18607, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Leona Rose Mason
- Credential
- FNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License numbers
- 18607 CA
R174895 MD
Self-reported in NPPES; status is on the state search - Practice location
- 14445 Olive View Drive Room 6B119H, Sylmar, CA 91342
- Phone
- (818) 364-3205
- Enumerated
- Oct 6, 2009
- Record last updated
- Oct 12, 2011 (not updated in 15 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20111117000205); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 16,966 in California → Look up another NPI →
Verify Leona Rose Mason in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 18607Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
49% fewer Medicare Part D claims than the average family nurse practitioner in 2024
664 Medicare Part D claims for 27 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims.
Most prescribed
- Atorvastatin Calcium71 claims
- Juluca41 claims
- Dovato40 claims
- Tamsulosin Hcl39 claims
- Biktarvy36 claims
- Famotidine30 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.
Bills Medicare through one group practice
- Los Angeles County Department OF Public HealthPacoima, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Leona Rose Mason among 16,966 family nurse practitioner records in California
Leona Rose Mason, FNP is one of 16,966 family nurse practitioner records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 15% of them.
- NPI issued2009 · 15% of these records are older, 83% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 40% of these records are
- Graduated2008 · median 2019 among the 6,793 with a school on file
- Record last updated2011 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
32 family nurse practitioner records list a practice address in Sylmar
They are 32 of the 1,454 NPPES records with a practice address in Sylmar, and 16,966 family nurse practitioner records in California.
All 16,966 in California → Every provider in Sylmar → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Marylou AclanSylmar, CA 913421881162147
- Jennifer Aguilar, RN, NPSylmar, CA 913421831556919
- Kristin AyusteSylmar, CA 913421730585308
- Marrianne BuccatSylmar, CA 913421669638193
- Jennifer Emmons, FNPSylmar, CA 913421477843852
- Jacqueline Gonzalez, N.P.Sylmar, CA 913421053711069
- Paula Kopf, NURSE PRACTITIONERSylmar, CA 913421144237157
- Suzanna Mendez-Nasrallah, FNPSylmar, CA 913421790830461
Common questions
What is Leona Rose Mason, FNP's NPI number?
Leona Rose Mason, FNP's National Provider Identifier (NPI) is 1396070512, issued on Oct 6, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Leona Rose Mason, FNP located?
The NPPES record lists a practice address at 14445 Olive View Drive Room 6B119H, Sylmar, CA, 91342. Phone: (818) 364-3205. Providers update this record themselves, so call before visiting.
How can I verify Leona Rose Mason, FNP's license?
NPPES lists California license number 18607, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Leona Rose Mason, FNP prescribe under Medicare Part D?
In 2024, Leona Rose Mason, FNP had 664 Medicare Part D claims for 27 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.