Margaret Niesen
Registered Nurse · Winterhaven, CA
Margaret Niesen is a registered nurse with a practice address in Winterhaven, California, and NPI 1487878757, issued on Apr 11, 2007. Check the license (California 565838, 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
- Margaret Niesen
- Primary taxonomy
- Registered Nurse 163W00000X
- License number
- 565838 CA
Self-reported in NPPES; status is on the state search - Practice location
- One Indian Hill Road, Winterhaven, CA 92283
- Phone
- (760) 572-4147
- Enumerated
- Apr 11, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (760) 572-4153
- Entity
- Type 1 · individual
Also registered at One Indian Hill Road
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Donna AlexandreRegistered Nurse1093838849
- Cheryl EswoniaNurse's Aide1194970517
- Carolyn GehrerRegistered Nurse1447665609
- Laurie JoaquinNurse's Aide1013162437
- Tashina MillerNurse's Aide1447499058
- Beverly MonninRegistered Nurse1346464609
Verify Margaret Niesen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 565838Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
31 registered nurse records list a practice address in Winterhaven
They are 31 of the 90 NPPES records with a practice address in Winterhaven, and 13,506 registered nurse records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 31 in Winterhaven → All 13,506 in California → Every provider in Winterhaven →
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- Victoria AardappelChico, CA1396148698
- Denise Aaron, RNSan Diego, CA1497345268
- Bernadette Marie Abadilla, RNMillbrae, CA1154970697
- Brenda Abalos, RNNational City, CA1497064737
- Carla Abalos, RNUnion City, CA1669158523
- Caron Faustino Marti AbalosCerritos, CA1811603327
- Geraldine Abalos, RNSanta Cruz, CA1073456109
Common questions
What is Margaret Niesen's NPI number?
Margaret Niesen's National Provider Identifier (NPI) is 1487878757, issued on Apr 11, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Margaret Niesen located?
The NPPES record lists a practice address at One Indian Hill Road, Winterhaven, CA, 92283. Phone: (760) 572-4147. Providers update this record themselves, so call before visiting.
How can I verify Margaret Niesen's license?
NPPES lists California license number 565838, 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.