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
Mailing address624 E Noble Ave, Guthrie, OK 73044-3411

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