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

Mr. Mark William Spielmann, RDN

Individual provider Pediatric Nutrition Registered Dietitian · NPI 1437785276

Mr. Mark William Spielmann, RDN is a Pediatric Nutrition Registered Dietitian in Los Angeles, California. Licensed in Illinois. Registered with an NPI since 2020.

Licensed in
IL
In the registry since
2020
What do these letters mean?
RDN — Registered Dietitian Nutritionist
The current title for a registered dietitian.

See every abbreviation used in this directory →

Practice location Address checks out

4650 W Sunset Blvd
Los Angeles, CA 90027-6062
Phone: (312) 566-6650
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pediatric Nutrition Registered Dietitian (primary) Taxonomy 133VN1004X · Licence 924035 (IL)

Record details

NPI number1437785276
Entity typeIndividual (Type 1)
GenderMale
Credentials RDN
Sole proprietorNo
NPI enumeratedMarch 12, 2020
Last updated in NPPESMarch 12, 2020
Certification dateMarch 12, 2020

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