Mary Kathryn Ruiz, APRN, FNP - C
Family Nurse Practitioner · Guymon, OK
Mary Kathryn Ruiz, APRN, FNP - C is a family nurse practitioner with a practice address in Guymon, Oklahoma, and NPI 1841808862, issued on Jul 15, 2020. Check the license (Oklahoma 67669, as entered in NPPES) with the Oklahoma board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary Kathryn Ruiz
- Credential
- APRN, FNP - C
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License numbers
- 67669 OK
53-79454-112 KS
Self-reported in NPPES; status is on the state search - Practice location
- 2215 N Highway 64, Guymon, OK 73942
- Phone
- (580) 754-2280
- Enumerated
- Jul 15, 2020
- Record last updated
- Oct 28, 2020 (not updated in 6 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 2,711 in Oklahoma → Look up another NPI →
Also registered at 2215 N Highway 64
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Dianna MowdyFamily Nurse Practitioner1487111712
- Corina Ramirez, FNP-CFamily Nurse Practitioner1396243077
Verify Mary Kathryn Ruiz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oklahoma board licenses this profession
Search for license 67669Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% fewer Medicare Part D claims than the average family nurse practitioner in 2024
212 Medicare Part D claims for 27 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium12 claims
- Metoprolol Succinate12 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.
Mary Kathryn Ruiz among 2,711 family nurse practitioner records in Oklahoma
Mary Kathryn Ruiz, APRN, FNP - C 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 2020, is newer than 63% of them.
- NPI issued2020 · 63% of these records are older, 29% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 66% of these records are
- Record last updated2020 · 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).
9 family nurse practitioner records list a practice address in Guymon
They are 9 of the 128 NPPES records with a practice address in Guymon, and 2,711 family nurse practitioner records in Oklahoma.
All 2,711 in Oklahoma → Every provider in Guymon → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Baolong DoGuymon, OK 739421891338059
- Selene Garcia-Van Camp, APRN FNP-CGuymon, OK 739421720740657
- Lori Harriman, ARNPGuymon, OK 739421982905600
- Tasha Herrera, APRN, FNP-CGuymon, OK 739421851900310
- Dianna MowdyGuymon, OK 739421487111712
- Corina Ramirez, FNP-CGuymon, OK 739421396243077
- Jessica Rivera VegaGuymon, OK 739421578444790
- Kimberly Wadley, APRN, FNP-CGuymon, OK 739421538787668
Common questions
What is Mary Kathryn Ruiz, APRN, FNP - C's NPI number?
Mary Kathryn Ruiz, APRN, FNP - C's National Provider Identifier (NPI) is 1841808862, issued on Jul 15, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Mary Kathryn Ruiz, APRN, FNP - C located?
The NPPES record lists a practice address at 2215 N Highway 64, Guymon, OK, 73942. Phone: (580) 754-2280. Providers update this record themselves, so call before visiting.
How can I verify Mary Kathryn Ruiz, APRN, FNP - C's license?
NPPES lists Oklahoma license number 67669, as entered by the provider. Search the Oklahoma board that licenses this profession; the NPPES record confirms identity only.
How much does Mary Kathryn Ruiz, APRN, FNP - C prescribe under Medicare Part D?
In 2024, Mary Kathryn Ruiz, APRN, FNP - C had 212 Medicare Part D claims for 27 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.