NPPES file of Aug 9, 2026

Karol Ann Matson, R. D.

Registered Dietitian · San Fernando, CA

Karol Ann Matson, R. D. is a registered dietitian with a practice address in San Fernando, California, and NPI 1336379759, issued on Jul 20, 2009. Check the license 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
1336379759
Name
Karol Ann Matson
Credential
R. D.
Primary taxonomy
Registered Dietitian 133V00000X
License number
DI00001035 WA
Self-reported in NPPES; status is on the state search
Practice location
732 Mott St, San Fernando, CA 91340
Phone
(818) 837-3775
Enumerated
Jul 20, 2009
Record last updated
Feb 28, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(818) 837-3799
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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8 nearest registered dietitian records → All 7,148 in California → Look up another NPI →

Also registered at 732 Mott St

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

  1. Christopher Angara, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1215331095
  2. Elaine Der, PHARM.D.Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1386948636
  3. Thania Lemus Salazar, LVNLicensed Vocational Nurse1093552697
  4. Heidi Lennartz, LCSWClinical Social Worker1003395765
  5. Sara Medina, REGISTERED NURSERegistered Nurse1699403311
  6. Norma Villalobos, LCSWClinical Social Worker1811400245

Verify Karol Ann Matson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this professionCheck 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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Karol Ann Matson among 7,148 registered dietitian records in California

Karol Ann Matson, R. D. 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 2009, is newer than 18% of them.

  • NPI issued2009 · 18% of these records are older, 80% newer
  • In a Medicare fileNo · 5% of these records are
  • In the CMS Doctors and Clinicians fileNo · 7% of these records are
  • Record last updated2014 · 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 San Fernando → Registered Dietitian nationwide →

The 8 registered dietitian records with the nearest ZIP codes

  1. Sandy Flores, RDNSan Fernando, CA 913401205397783
  2. Audra Gustafson, RDSan Fernando, CA 913401790961456
  3. Pedro Argueta, MPH, RDNSylmar, CA 913421417577289
  4. Candice Barrow, RDLake View Terrace, CA 913421124783931
  5. Annette Bremel, RDSylmar, CA 913421720325871
  6. Araceli Carranza, RDNSylmar, CA 913421356004162
  7. Jenifer Kappico, MS, RDSylmar, CA 913421144731597
  8. Erin Levitt, RDSylmar, CA 913421912419367

Common questions

What is Karol Ann Matson, R. D.'s NPI number?

Karol Ann Matson, R. D.'s National Provider Identifier (NPI) is 1336379759, issued on Jul 20, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Karol Ann Matson, R. D. located?

The NPPES record lists a practice address at 732 Mott St, San Fernando, CA, 91340. Phone: (818) 837-3775. Providers update this record themselves, so call before visiting.

How can I verify Karol Ann Matson, R. D.'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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.