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

Dr Fredrick Ellyin, Ltd

Organization Endocrinology, Diabetes & Metabolism Physician · NPI 1598847642

Dr Fredrick Ellyin, Ltd is an Endocrinology, Diabetes & Metabolism Physician in Chicago, Illinois. Licensed in Illinois. Registered with an NPI since 2006.

Licensed in
IL
In the registry since
2006
What do these letters mean?
Ltd — Limited
A form of business registration, not a clinical qualification.

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Practice location Address checks out

5140 N California Ave Ste 545
Chicago, IL 60625-3645
Phone: (773) 275-0177
Fax: (773) 275-5431
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Endocrinology, Diabetes & Metabolism Physician (primary) Taxonomy 207RE0101X (IL)

Record details

NPI number1598847642
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Fredrick Ellyin — Owner · (773) 275-0177
NPI enumeratedOctober 19, 2006
Last updated in NPPESApril 20, 2008
Mailing address5140 N California Ave, Suite 545, Chicago, IL 60625-3645

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