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Metabolic Nutrition Registered Dietitian in San Diego, California

Data updated monthly · Last refresh September 2026

5 Metabolic Nutrition Registered Dietitian providers practice in San Diego. Listings are drawn from federal public records and are not endorsements.

Metabolic Nutrition Registered Dietitian providers in San Diego

Listed alphabetically. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.

Dr. Katherine Machado, M.S., R.D.
San Diego, CA · No drug or device payments recorded (2025) · (619) 289-8131
Dr. Linda Illingworth, RD, CSSD
San Diego, CA · No drug or device payments recorded (2025) · (858) 703-7090
Dr. Linda Raynes Mahony, MS.RD. CDE.
San Diego, CA · No drug or device payments recorded (2025) · (619) 574-8612
Dr. Marnie Fischer, R.D.
San Diego, CA · No drug or device payments recorded (2025) · Telehealth · (858) 678-7050
Dr. Nicholas Biase, RDN
San Diego, CA · No drug or device payments recorded (2025) · (203) 654-5393

Common questions

How many Metabolic Nutrition Registered Dietitian providers are in San Diego, California?

There are 5 Metabolic Nutrition Registered Dietitian providers with active NPI records practicing in San Diego, according to federal NPPES data refreshed monthly.

Where does this data come from?

Provider records come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.

All specialties in San Diego Metabolic Nutrition Registered Dietitian across California

Try a city like Tucson, a zip like 85016, or a specialty like psychiatry. For a doctor by name, use the full search.
Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory.