Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Alan Vance Siewertsen, RD

Individual provider Registered Dietitian · NPI 1598735359

Alan Vance Siewertsen, RD is a Registered Dietitian in Jacksonville, Florida. Registered with an NPI since 2006.

In the registry since
2006
What do these letters mean?
RD — Registered Dietitian
A credentialed nutrition professional.

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Practice location Address checks out

2080 Child St
Jacksonville, FL 32214-5005
Phone: (904) 542-9786
Fax: (904) 542-9117
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Registered Dietitian (primary) Taxonomy 133V00000X

Record details

NPI number1598735359
Entity typeIndividual (Type 1)
GenderMale
Credentials RD
Sole proprietorNo
NPI enumeratedJanuary 25, 2006
Last updated in NPPESJuly 13, 2026
Mailing address650 Timbermill Ln, Orange Park, FL 32065-2231

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