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

Onto Fertility Lab of Illinois, LLC

Organization Reproductive Endocrinology Physician · NPI 1073462099

Onto Fertility Lab of Illinois, LLC is a Reproductive Endocrinology Physician in Chicago, Illinois. Works from 4 locations. Registered with an NPI since 2026.

In the registry since
2026
What do these letters mean?
LLC — Limited liability company
A form of business registration, not a clinical qualification.

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Practice location Address checks out

371 W Ontario St
Chicago, IL 60654-5716
Phone: (312) 724-8448
Fax: (312) 724-8448
Show map & directions

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

Additional practice locations (3)

  • 2567 W Golf Rd, Hoffman Estates, IL 60169-1165 — (312) 724-8448
  • 1528 Aurora Ave, Naperville, IL 60540-6210 — (312) 724-8448
  • 520 W Touhy Ave, Park Ridge, IL 60068-4276 — (312) 724-8448

Specialties & licences

Reproductive Endocrinology Physician (primary) Taxonomy 207VE0102X

Record details

NPI number1073462099
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Jennifer Teschendorf — Rcm Consultant · (612) 458-8050
Other names Onto Health
NPI enumeratedJanuary 23, 2026
Last updated in NPPESJanuary 23, 2026
Certification dateJanuary 23, 2026
Mailing address1130 S Canal St, Chicago, IL 60607-5058

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