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

Casey Foster De Graaf, NP-C

Individual provider Family Nurse Practitioner · NPI 1174027098

Casey Foster De Graaf, NP-C is a Nurse Practitioner in Oklahoma City, Oklahoma. Qualified in 2017, 9 years ago. Practices with Mercy Clinic Oklahoma Communities, a 648-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Oklahoma and South Carolina.

Years since qualifying
9
Licensed in
OK, SC
In the registry since
2018
Specialties on file
2
What do these letters mean?
NP-C — Nurse Practitioner, Certified
A nurse practitioner certified by the AANP.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

5200 E I 240 Service Rd # 330
Oklahoma City, OK 73135-2607
Phone: (405) 416-9703
Fax: (405) 416-9704
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 212947 (OK)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence 21637 (SC)

Record details

NPI number1174027098
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP-C
Sole proprietorNo
NPI enumeratedMarch 23, 2018
Last updated in NPPESMarch 24, 2025
Certification dateMarch 24, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice Mercy Clinic Oklahoma Communities — 648 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Oklahoma City