NPPES file of Aug 9, 2026

Margaret Susan Stemmler

Registered Nurse · Torrance, CA

Margaret Susan Stemmler is a registered nurse with a practice address in Torrance, California, and NPI 1205900826, issued on Nov 17, 2006. Check the license (California 243632, 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.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1205900826
Name
Margaret Susan Stemmler
Primary taxonomy
Registered Nurse 163W00000X
License numbers
243632 CA
1658 CA
5662 CA
Self-reported in NPPES; status is on the state search
Practice location
1124 W Carson St # N28, Torrance, CA 90502
Phone
(310) 222-3714
Enumerated
Nov 17, 2006
Record last updated
Sep 11, 2025
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1124 W Carson St # N28

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Tarquina AlvarezPhysician Assistant1134292006
  2. Vicky Carter, RNPWomen's Health Nurse Practitioner1548333503
  3. Delores HenryAddiction (Substance Use Disorder) Registered Nurse1548334253
  4. Ellen Olaivar, NP BSN MSNWomen's Health Nurse Practitioner1407920192
  5. Yasna OuwerkerkRegistered Nurse1043383904

Verify Margaret Susan Stemmler in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 243632
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

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Registered Nurse providers in California

There are 13,506 registered nurse records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

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  3. Anu Aaltonen-Bond, RNRancho Cordova, CA1972895696
  4. Victoria AardappelChico, CA1396148698
  5. Denise Aaron, RNSan Diego, CA1497345268
  6. Bernadette Marie Abadilla, RNMillbrae, CA1154970697
  7. Brenda Abalos, RNNational City, CA1497064737
  8. Carla Abalos, RNUnion City, CA1669158523
  9. Caron Faustino Marti AbalosCerritos, CA1811603327
  10. Geraldine Abalos, RNSanta Cruz, CA1073456109

Common questions

What is Margaret Susan Stemmler's NPI number?

Margaret Susan Stemmler's National Provider Identifier (NPI) is 1205900826, issued on Nov 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Margaret Susan Stemmler located?

The NPPES record lists a practice address at 1124 W Carson St # N28, Torrance, CA, 90502. Phone: (310) 222-3714. Providers update this record themselves, so call before visiting.

How can I verify Margaret Susan Stemmler's license?

NPPES lists California license number 243632, 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.