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

Sierra Jan Casillas, CNM

Individual provider Advanced Practice Midwife · NPI 1194974980

Sierra Jan Casillas, CNM is an Advanced Practice Midwife in Washington, District of Columbia. Licensed in District of Columbia. Registered with an NPI since 2008.

Licensed in
DC
In the registry since
2008
What do these letters mean?
CNM — Certified Nurse-Midwife
An advanced practice nurse who provides prenatal care and delivers babies.

See every abbreviation used in this directory →

Practice location Address checks out

801 17th St NE
Washington, DC 20002-7200
Phone: (202) 398-5520
Fax: (202) 396-6953
Show map & directions

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

Specialties & licences

Advanced Practice Midwife (primary) Taxonomy 367A00000X · Licence RN1013232 (DC)

Record details

NPI number1194974980
Entity typeIndividual (Type 1)
GenderFemale
Credentials CNM
Sole proprietorNo
NPI enumeratedSeptember 16, 2008
Last updated in NPPESSeptember 16, 2008

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