Janet Renee Johnston
Registered Dietitian · Los Alamitos, CA
Janet Renee Johnston is a registered dietitian with a practice address in Los Alamitos, California, and NPI 1891583068, issued on Apr 28, 2025. Check the license with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Janet Renee Johnston
- Primary taxonomy
- Registered Dietitian 133V00000X
- Practice location
- 12100 Montecito RD Unit 150, Los Alamitos, CA 90720
- Phone
- (626) 644-6045
- Enumerated
- Apr 28, 2025
- Record last updated
- Apr 28, 2025
- Entity
- Type 1 · individual
8 nearest registered dietitian records → All 7,148 in California → Look up another NPI →
Verify Janet Renee Johnston in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Janet Renee Johnston among 7,148 registered dietitian records in California
Janet Renee Johnston is one of 7,148 registered dietitian records with a practice address in California. 5% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2025, is newer than 87% of them.
- NPI issued2025 · 87% of these records are older, 5% newer
- In a Medicare fileNo · 5% of these records are
- In the CMS Doctors and Clinicians fileNo · 7% of these records are
- Record last updated2025 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 133V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Registered Dietitian providers in California
There are 7,148 registered dietitian records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 7,148 in California → Every provider in Los Alamitos → Registered Dietitian nationwide →
The 8 registered dietitian records with the nearest ZIP codes
- Kristin Biddle, R.D.Los Alamitos, CA 907201750091336
- Austin Bou, RD, CDCESLos Alamitos, CA 907201497394258
- Shiromi Geffrey, M.S., R.D.N.Los Alamitos, CA 907201942064860
- Robin Hensch, RDNRossmoor, CA 907201972261485
- Karin London, MPH, RDLos Alamitos, CA 907201275674244
- Katrina Lopez, RDNLos Alamitos, CA 907201083452650
- Mary Seiersen, RDELos Alamitos, CA 907201538282983
- Joshua Miguel De Joya, RDParamount, CA 907231225819238
Common questions
What is Janet Renee Johnston's NPI number?
Janet Renee Johnston's National Provider Identifier (NPI) is 1891583068, issued on Apr 28, 2025. An NPI identifies a provider in billing; it is not a license.
Where is Janet Renee Johnston located?
The NPPES record lists a practice address at 12100 Montecito RD Unit 150, Los Alamitos, CA, 90720. Phone: (626) 644-6045. Providers update this record themselves, so call before visiting.
How can I verify Janet Renee Johnston's license?
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.