Berna Lee Mayer, RN, MSN, CFNP
Family Nurse Practitioner · Lancaster, CA
Berna Lee Mayer, RN, MSN, CFNP is a family nurse practitioner with a practice address in Lancaster, California, and NPI 1598876690, issued on Aug 31, 2006. Check the license (California NP 4699, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Berna Lee Mayer
- Credential
- RN, MSN, CFNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License numbers
- NP 4699 CA
RN 375729 CA
Self-reported in NPPES; status is on the state search - Practice location
- 43839 15TH St W, Lancaster, CA 93534
- Phone
- (661) 945-5984
- Enumerated
- Aug 31, 2006
- Record last updated
- Sep 10, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (661) 726-3890
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 16,966 in California → Look up another NPI →
Also registered at 43839 15TH St W
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Edgardo Barcelona, M.D.Surgery Physician1013028315
- Nathaniel Bautista, M.D.Occupational Medicine Physician1538270822
- Darbi CameronPharmacist1477854917
- Thomas Carlton, M.D.Psychiatry Physician1912079518
Verify Berna Lee Mayer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license NP 4699Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
74% fewer Medicare Part D claims than the average family nurse practitioner in 2024
333 Medicare Part D claims for 68 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.
Most prescribed
- Ipratropium-Albuterol118 claims
- Levothyroxine Sodium35 claims
- Combivent Respimat20 claims
- Spiriva Respimat15 claims
- Budesonide14 claims
- Primidone13 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.
Berna Lee Mayer among 16,966 family nurse practitioner records in California
Berna Lee Mayer, RN, MSN, CFNP 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 2006, is newer than 1% of them.
- NPI issued2006 · 1% of these records are older, 93% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 40% of these records are
- Record last updated2008 · 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).
89 family nurse practitioner records list a practice address in Lancaster
They are 89 of the 4,273 NPPES records with a practice address in Lancaster, and 16,966 family nurse practitioner records in California.
All 16,966 in California → Every provider in Lancaster → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Sandra Callaghan, FNPLancaster, CA 935341780970517
- Jacob Carpenter, FNP-CLancaster, CA 935341295199263
- Sukhvir Dhinsa, FNP-BCLancaster, CA 935341255707493
- Richard Emanuel, FNPLancaster, CA 935341922399609
- Pascualita FloresLancaster, CA 935341386040145
- Meredith Graham, NPLancaster, CA 935341558634337
- Dorothy Griego, FNPCLancaster, CA 935341992977326
- Carlos Guerrero, FNPLancaster, CA 935341699855080
Common questions
What is Berna Lee Mayer, RN, MSN, CFNP's NPI number?
Berna Lee Mayer, RN, MSN, CFNP's National Provider Identifier (NPI) is 1598876690, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Berna Lee Mayer, RN, MSN, CFNP located?
The NPPES record lists a practice address at 43839 15TH St W, Lancaster, CA, 93534. Phone: (661) 945-5984. Providers update this record themselves, so call before visiting.
How can I verify Berna Lee Mayer, RN, MSN, CFNP's license?
NPPES lists California license number NP 4699, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Berna Lee Mayer, RN, MSN, CFNP prescribe under Medicare Part D?
In 2024, Berna Lee Mayer, RN, MSN, CFNP had 333 Medicare Part D claims for 68 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.