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

Marilyn Austin-Clark

Individual provider Family Nurse Practitioner · NPI 1164819504

Marilyn Austin-Clark is a Nurse Practitioner in Guthrie, Oklahoma. Qualified in 2014, 12 years ago. Practices with Oklahoma Sleep Institute Clinic Okc LLC Osi Clinic, a 6-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Oklahoma.

Years since qualifying
12
Licensed in
OK
In the registry since
2015

Practice location Address checks out

624 E Noble Ave
Guthrie, OK 73044-3411
Phone: (405) 471-4914
Show map & directions

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

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 81876 (OK)

Record details

NPI number1164819504
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedApril 23, 2015
Last updated in NPPESSeptember 22, 2022
Certification dateSeptember 22, 2022

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2014 (12 years in practice)
Group practice Oklahoma Sleep Institute Clinic Okc Llc Osi Clinic — 6 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Guthrie