Leona Rose Mason, FNP
- Part D claims, 2024
- 664
- Hospital affiliations
- 1
- Medical groups
- 2
- State licenses
- 2
- Year NPI issued
- 2009
- Practice address
- 14445 Olive View Drive, Sylmar, CA 91342
- Practice phone
- Call (818) 364-1555
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Leona Mason's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Leona Rose Mason is a family nurse practitioner in Sylmar, California
Leona Mason practices at Olive View-UCLA Medical Center in Sylmar, California, part of County of Los Angeles.
Leona Mason's NPI, 1396070512, was assigned on October 6, 2009. Leona Mason holds California license 18607.
- NPI
- 1396070512NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2365616992
- NPI enumeration date
- October 6, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (818) 364-1555
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Leona Rose Mason practices at Olive View-UCLA Medical Center in Sylmar, California
Leona Mason's primary practice is Olive View-UCLA Medical Center, at 14445 Olive View Drive, Sylmar, CA 91342 in Los Angeles County. The practice phone is (818) 364-1555.
- Olive View-UCLA Medical Center14445 Olive View Drive, Sylmar, CA 91342 · Los Angeles CountyPhone(818) 364-1555
Source: Dmand AI Affiliation Data
Leona Rose Mason is affiliated with 1 site of care and 2 medical groups
Leona Mason's primary practice is Olive View-UCLA Medical Center in Sylmar, California, part of County of Los Angeles. The medical group on file is Harbor-UCLA Medical Center. Dmand AI also links Leona Mason to 1 more medical group, named with a free account. Leona Mason's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Leona Rose Mason's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Leona Mason practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Olive View-UCLA Medical Center | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across County of Los Angeles and 6.2K+ hospitals, with verified contacts in the same login.
Leona Rose Mason is one of 13,532 family nurse practitioners in California
Family is Leona Mason's primary specialty in the NPI Registry, under taxonomy code 363LF0000X. Dmand AI has Leona Mason's licenses on file in 2 states: California and Maryland.
Specialties and state licenses
- Family nurse practitioner, CaliforniaPrimary
- Maryland license
Family nurse practitioners near Leona Mason
Counts of family nurse practitioners with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Leona Rose Mason's patients have a median age of 52
Across all payers, Dmand AI patient panel data puts Leona Mason's median patient age at 52, with 35% women.
Leona Mason's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 52
Patient panel by sex, all payers
- Women35%
- Men65%
Source: Dmand AI Patient Panel Data
Leona Rose Mason wrote 664 Medicare Part D claims in 2024
In 2024, Leona Mason wrote 664 Medicare Part D claims for 27 patients. 72% of them were for generic drugs. CMS names the drug for 520 of them, across 22 drugs with 11 or more claims each, at $525,222 in total drug cost.
Leona Mason's Part D claims by kind of drug, 2024
- Generic477 claims72%
- Brand-name187 claims28%
Leona Mason's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Leona Rose Mason takes part in Medicare
Leona Mason accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Sources for Leona Rose Mason's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Leona Rose Mason
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Leona Rose Mason's NPI number?
Leona Rose Mason's NPI number is 1396070512. It was assigned on October 6, 2009, and it is active in the NPI Registry.
What does Leona Rose Mason specialize in?
Leona Rose Mason is a family nurse practitioner in Sylmar, California. The primary specialty in the NPI Registry is Family Nurse Practitioner (taxonomy code 363LF0000X).
Where does Leona Rose Mason practice?
Leona Mason practices at 14445 Olive View Drive, Sylmar, CA 91342. Leona Mason's primary practice is Olive View-UCLA Medical Center in Sylmar, California, part of County of Los Angeles. Dmand AI also links Leona Mason to 1 medical group.
What is Leona Rose Mason's office phone number?
The practice phone on file for Leona Mason is (818) 364-1555.
What is Leona Rose Mason's medical license number?
Leona Mason holds California license 18607, one of the licenses on file in 2 states.
Which states has Leona Rose Mason been licensed in?
Dmand AI has state licenses on file for Leona Mason in California and Maryland.
Which hospitals is Leona Rose Mason affiliated with?
Leona Mason practices at Olive View-UCLA Medical Center in Sylmar, California.
What medical group is Leona Rose Mason part of?
Leona Mason is linked to Harbor-UCLA Medical Center. Dmand AI links Leona Mason to 1 more medical group.
Does Leona Rose Mason accept Medicare?
Yes. CMS lists Leona Mason as accepting Medicare assignment.
What drugs does Leona Rose Mason prescribe most?
In 2024 Medicare Part D data, Leona Mason's most prescribed drugs by claims were Atorvastatin Calcium, Juluca and Dovato.
How long has Leona Rose Mason been practicing?
Leona Mason graduated from medical school in 2008, 18 years ago.
Selling to family practices?
See family nurse practitioners in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card