Marilyn Austin-Clark
Family Nurse Practitioner · Guthrie, OK
Marilyn Austin-Clark is a family nurse practitioner with a practice address in Guthrie, Oklahoma, and NPI 1164819504, issued on Apr 23, 2015. Check the license (Oklahoma 81876, as entered in NPPES) with the Oklahoma board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marilyn Austin-Clark
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 81876 OK
Self-reported in NPPES; status is on the state search - Practice location
- 624 E Noble Ave, Guthrie, OK 73044
- Phone
- (405) 471-4914
- Enumerated
- Apr 23, 2015
- Record last updated
- Sep 22, 2022
- Medicaid ID
- 12150625001972 OK
- Medicare enrollment
- Enrolled (PECOS I20150625001972); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 2,711 in Oklahoma → Look up another NPI →
Verify Marilyn Austin-Clark in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oklahoma board licenses this profession
Search for license 81876Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average family nurse practitioner in 2024
169 Medicare Part D claims for 34 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Methenamine Hippurate27 claims
- Metoprolol Tartrate15 claims
- Trazodone Hcl11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $115.21
1 payment: food and beverage; the largest payer was Lexicon Pharmaceuticals, Inc. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Oklahoma Sleep Institute Clinic Okc LLC Osi ClinicOklahoma City, OK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marilyn Austin-Clark among 2,711 family nurse practitioner records in Oklahoma
Marilyn Austin-Clark is one of 2,711 family nurse practitioner records with a practice address in Oklahoma. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 25% of them.
- NPI issued2015 · 25% of these records are older, 69% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2014 · median 2018 among the 1,783 with a school on file
- Record last updated2022 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
11 family nurse practitioner records list a practice address in Guthrie
They are 11 of the 273 NPPES records with a practice address in Guthrie, and 2,711 family nurse practitioner records in Oklahoma.
All 2,711 in Oklahoma → Every provider in Guthrie → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Kaitlyn Bishop, NP-CGuthrie, OK 730441164094579
- Ketti Eddy, APRN-CNPGuthrie, OK 730441194723239
- Stephen Hartzell, APRNGuthrie, OK 730441639805088
- Austin Hatfield, N.P.Guthrie, OK 730441528870797
- Candace Herrin, APRN-CNPGuthrie, OK 730441114544871
- Matthew Hillis, APRNGuthrie, OK 730441871184911
- Wendy Sanders, APRN, FNP-CGuthrie, OK 730441679315980
- Nicole Steichen, FNP-BCGuthrie, OK 730441922896349
Common questions
What is Marilyn Austin-Clark's NPI number?
Marilyn Austin-Clark's National Provider Identifier (NPI) is 1164819504, issued on Apr 23, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Marilyn Austin-Clark located?
The NPPES record lists a practice address at 624 E Noble Ave, Guthrie, OK, 73044. Phone: (405) 471-4914. Providers update this record themselves, so call before visiting.
How can I verify Marilyn Austin-Clark's license?
NPPES lists Oklahoma license number 81876, as entered by the provider. Search the Oklahoma board that licenses this profession; the NPPES record confirms identity only.
How much does Marilyn Austin-Clark prescribe under Medicare Part D?
In 2024, Marilyn Austin-Clark had 169 Medicare Part D claims for 34 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.