John Alexander, R.N.
Registered Nurse · Los Angeles, CA
John Alexander, R.N. is a registered nurse with a practice address in Los Angeles, California, and NPI 1801986120, issued on Oct 15, 2006. Check the license (California 454631, 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
- John Alexander
- Credential
- R.N.
- Primary taxonomy
- Registered Nurse 163W00000X
- License number
- 454631 CA
Self-reported in NPPES; status is on the state search - Practice location
- 550 S Vermont Ave, Los Angeles, CA 90020
- Phone
- (213) 351-5497
- Enumerated
- Oct 15, 2006
- Entity
- Type 1 · individual
Also registered at 550 S Vermont Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jennifer Acero, LCSWClinical Social Worker1447468749
- Christi AcostaCase Manager/Care Coordinator1740582592
- Maria Acosta, R.N.Psychiatric/Mental Health Registered Nurse1760570345
- Juan Aguirre, LCSWRehabilitation Practitioner1821113499
- Jessica Ahearn, LCSWClinical Social Worker1538257639
- Aaron Albelo, LCSWClinical Social Worker1316060379
Verify John Alexander in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 454631Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
771 registered nurse records list a Los Angeles practice address
They are 771 of the 69,537 NPPES records with a Los Angeles practice address, and 16,593 registered nurse records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 771 in Los Angeles → All 16,593 in California → Every provider in Los Angeles →
Other registered nurse records in California
- Patricia A Onyango, RNModesto, CA1780424473
- Adelaida A Zavala, RNOntario, CA1235702804
- Anu Aaltonen-Bond, RNRancho Cordova, CA1972895696
- Victoria AardappelChico, CA1396148698
- Denise Aaron, RNSan Diego, CA1497345268
- Tiffanne Aaronsen, FNPIndio, CA1568191807
- Bernadette Marie Abadilla, RNMillbrae, CA1154970697
- Brenda Abalos, RNNational City, CA1497064737
- Carla Abalos, RNUnion City, CA1669158523
- Caron Faustino Marti AbalosCerritos, CA1811603327
Common questions
What is John Alexander, R.N.'s NPI number?
John Alexander, R.N.'s National Provider Identifier (NPI) is 1801986120, issued on Oct 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Alexander, R.N. located?
The NPPES record lists a practice address at 550 S Vermont Ave, Los Angeles, CA, 90020. Phone: (213) 351-5497. Providers update this record themselves, so call before visiting.
How can I verify John Alexander, R.N.'s license?
NPPES lists California license number 454631, 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), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.