Madelyn Carnahan , MS, RDN, LD
Dietitian, Registered • Defiance, OH
Professional Overview & Biography Verified Profile Summary
Madelyn Carnahan, MS, RDN, LD is a certified Dietitian, Registered practicing in Defiance, OH. With approximately 4 years of clinical experience since completing medical education in 2022, Madelyn Carnahan delivers high-quality medical care to the local community at 724 INVERNESS DR.
Madelyn Carnahan is affiliated with Healthy Hearts Nutrition Llc and accepts Medicare assignment.
Practice Location & Contact Primary Location
724 Inverness Dr
Defiance, OH 435128549
Medicare Profile & Education
Other
2022
✓ Accepts Assignment
In-Person Only
Specialty Benchmarks & Practice Insights
Comparative analytics for Dietitian, Registered in Defiance, OH
Practicing in Defiance, OH (2603 Statewide)
In-Person Office Visits Only
Under CMS Medicare Fee Schedule vs Standard Submitted Charges
Clinical Seniority & Experience Comparison
Medical Specialties & State Licenses
CMS Verified: 2026-06-10NUCC Taxonomy Code: 133V00000X
A Registered Dietitian (RD)/Registered Dietitian Nutritionist (RDN) is an individual uniquely trained in the science of nutrition and practice of dietetics to design and provide medical nutrition therapy (MNT) and other evidence-based applications of the Nutrition Care Process (NCP) that exemplify the profession's systematic approach to providing high quality nutrition care. Registered dietitians provide MNT for the purpose of disease prevention or management, or to treat or rehabilitate an illness, injury, or condition, with the use of specific, indicated physical and cognitive nutrition care services comprised of one or more of the following aspects of the NCP: nutrition assessment/reassessment, nutrition diagnosis, nutrition intervention (e.g., nutrition counseling, therapeutic diet ordering, and nutrition education) and nutrition monitoring and evaluation.
NUCC Taxonomy Code: 133V00000X
A Registered Dietitian (RD)/Registered Dietitian Nutritionist (RDN) is an individual uniquely trained in the science of nutrition and practice of dietetics to design and provide medical nutrition therapy (MNT) and other evidence-based applications of the Nutrition Care Process (NCP) that exemplify the profession's systematic approach to providing high quality nutrition care. Registered dietitians provide MNT for the purpose of disease prevention or management, or to treat or rehabilitate an illness, injury, or condition, with the use of specific, indicated physical and cognitive nutrition care services comprised of one or more of the following aspects of the NCP: nutrition assessment/reassessment, nutrition diagnosis, nutrition intervention (e.g., nutrition counseling, therapeutic diet ordering, and nutrition education) and nutrition monitoring and evaluation.
Hospital & Practice Group Affiliations
Healthy Hearts Nutrition Llc
4359 E Enon Rd, Yellow Springs, OH 453879708
Phone: 9372061131
Secondary Practice Locations
4359 E Enon Rd
Yellow Springs, OH 453879708
Phone: 9372061131
Career & Practice History Timeline
Chronological log of verified NPI updates, location relocations, credentials, and registry changes
Registered at 724 INVERNESS DR, DEFIANCE, OH 435128549 (Tel: 4199809813)
Registered at 724 INVERNESS DR, DEFIANCE, OH 435128549 (Tel: 4199809813)
Recorded as MADELYN CARNAHAN, MS, RDN, LD
Dietitian, Registered (License #37003994A in IN)
NPI status registered as active in NPPES database
Registered at 4359 E ENON RD, YELLOW SPRINGS, OH 453879708 (Tel: 9372061131)
Registered at 24515 ELLIOTT RD, DEFIANCE, OH 435129125 (Tel: 4199809813)
Recorded as MADELYN TREFZGER, MS, RDN, LD
Dietitian, Registered (License #LD.10548 in OH)
First registered as active Individual Practitioner in NPPES Database.
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NPI Administrative Meta
Mailing Address
724 Inverness Dr
Defiance, OH 435128549
Phone: 4199809813
This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.