Nancy A. Breen, R. N., N.P.
Nurse Practitioner · Lancaster, CA
Nancy A. Breen, R. N., N.P. is a nurse practitioner with a practice address in Lancaster, California, and NPI 1144346594, issued on Mar 21, 2007. Check the license (California NP10011, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Nancy A. Breen
- Credential
- R. N., N.P.
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License numbers
- NP10011 CA
RN395424 CA
Self-reported in NPPES; status is on the state search - Practice location
- 44900 60TH St W, Lancaster, CA 93536
- Phone
- (661) 948-8581
- Enumerated
- Mar 21, 2007
- Record last updated
- Sep 11, 2025
- Fax
- (661) 945-8474
- Entity
- Type 1 · individual
Also registered at 44900 60TH St W
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Yesenia Castellon, N.P.Family Nurse Practitioner1184927741
- Lessette Cetto, RNPPediatric Nurse Practitioner1134476799
- Canagaretnam Chandradas, M.D.Internal Medicine Physician1093840936
- Dorothy Copeland, R.N., N.P.Nurse Practitioner1831228931
- Henry Elwood, R.N., C.R.N.A.Certified Registered Nurse Anesthetist1710022926
- Mark FergusonAddiction (Substance Use Disorder) Counselor1831516558
Verify Nancy A. Breen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license NP10011Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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There are 8,223 nurse practitioner records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
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Common questions
What is Nancy A. Breen, R. N., N.P.'s NPI number?
Nancy A. Breen, R. N., N.P.'s National Provider Identifier (NPI) is 1144346594, issued on Mar 21, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Nancy A. Breen, R. N., N.P. located?
The NPPES record lists a practice address at 44900 60TH St W, Lancaster, CA, 93536. Phone: (661) 948-8581. Providers update this record themselves, so call before visiting.
How can I verify Nancy A. Breen, R. N., N.P.'s license?
NPPES lists California license number NP10011, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity 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. 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.