Gary J. Sardina, RDN
Registered Dietitian · Castaic, CA
Gary J. Sardina, RDN is a registered dietitian with a practice address in Castaic, California, and NPI 1558171363, issued on Jan 13, 2025. Check the license (California 86069626, 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
- Gary J. Sardina
- Credential
- RDN
- Primary taxonomy
- Registered Dietitian 133V00000X
- License number
- 86069626 CA
Self-reported in NPPES; status is on the state search - Practice location
- 27759 Wakefield RD, Castaic, CA 91384
- Phone
- (858) 344-0515
- Enumerated
- Jan 13, 2025
- Record last updated
- Jan 13, 2025
- Medicare enrollment
- Enrolled (PECOS I20251001002140); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest registered dietitian records → All 7,148 in California → Look up another NPI →
Verify Gary J. Sardina in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 86069626Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Gary J. Sardina among 7,148 registered dietitian records in California
Gary J. Sardina, RDN 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 fileYes · 7% of these records are
- Graduated2015 · median 2014 among the 529 with a school on file
- 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).
3 registered dietitian records list a practice address in Castaic
They are 3 of the 95 NPPES records with a practice address in Castaic, and 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 Castaic → Registered Dietitian nationwide →
The 8 registered dietitian records with the nearest ZIP codes
- Queenie Hill, RDCastaic, CA 913841972350361
- Jasmine Mercado, MPH, RDNCastaic, CA 913841144876020
- Sheri Barke, MPH, RD, CSSDStevenson Ranch, CA 913811164889077
- Mary Bizzle, RD.Canyon Country, CA 913871689692014
- Mojgan Orsini, RDN, CDECanyon Country, CA 913871689191272
- Devin Welch, RDSanta Clarita, CA 913871861369555
- Ariana Wong, RDCanyon Country, CA 913871720860679
- Judith Dalton, R.D.Agua Dulce, CA 913901073730255
Common questions
What is Gary J. Sardina, RDN's NPI number?
Gary J. Sardina, RDN's National Provider Identifier (NPI) is 1558171363, issued on Jan 13, 2025. An NPI identifies a provider in billing; it is not a license.
Where is Gary J. Sardina, RDN located?
The NPPES record lists a practice address at 27759 Wakefield RD, Castaic, CA, 91384. Phone: (858) 344-0515. Providers update this record themselves, so call before visiting.
How can I verify Gary J. Sardina, RDN's license?
NPPES lists California license number 86069626, 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.