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

Individual provider Neonatal-Perinatal Medicine Physician · NPI 1104074749

Hernan Sierra Fernandez, MD is a Neonatal-Perinatal Medicine Physician in Chicago, Illinois. Practices as a sole proprietor and works from 3 locations. Licensed in California and Illinois.

Licensed in
CA, IL
In the registry since
2008
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

840 S Wood St Csb 1262 M/c 856
Chicago, IL 60612-4325
Phone: (312) 355-3282
Fax: (312) 355-5548
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 2525 Chicago Ave, Minneapolis, MN 55404-4518 — (312) 810-4065
  • 345 Smith Ave N, Saint Paul, MN 55102-2346 — (312) 810-4065

Specialties & licences

Neonatal-Perinatal Medicine Physician (primary) Taxonomy 2080N0001X · Licence 036-120314 (IL)
Neonatal-Perinatal Medicine Physician Taxonomy 2080N0001X · Licence A105435 (CA)

Record details

NPI number1104074749
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedSeptember 8, 2008
Last updated in NPPESMay 1, 2020
Certification dateMay 1, 2020

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