NPPES file of Aug 9, 2026

Catherine Ratliff, APRN

Family Medicine Physician · Oklahoma City, OK

Catherine Ratliff, APRN is a family medicine physician with a practice address in Oklahoma City, Oklahoma, and NPI 1821658899, issued on Jun 20, 2019. Check the license (Oklahoma 109156, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1821658899
Name
Catherine Ratliff
Credential
APRN
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
109156 OK
Self-reported in NPPES; status is on the state search
Practice location
8105 NW Expressway, Oklahoma City, OK 73162
Phone
(405) 602-3500
Enumerated
Jun 20, 2019
Record last updated
Jun 20, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(405) 602-3550
Medicare enrollment
Enrolled (PECOS I20200224002037); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 8105 NW Expressway

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Andrew Hoelscher, M.D.Emergency Medical Services (Emergency Medicine) Physician1811959166
  2. Tami Lawson, APRNNurse Practitioner1700201035
  3. Demille Madoux, M.D.Family Medicine Physician1215994868

Verify Catherine Ratliff in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOklahoma Board of Medical Licensure and Supervision
    Search for license 109156
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Oklahoma license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

87% fewer Medicare Part D claims than the average family medicine physician in 2024

473 Medicare Part D claims for 312 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. Catherine Ratliff473
  2. Specialty average3,544

Most prescribed

  1. Doxycycline Hyclate35 claims
  2. Ipratropium Bromide34 claims
  3. Amoxicillin-Clavulanate Potass33 claims
  4. Azithromycin33 claims
  5. Cephalexin32 claims
  6. Methylprednisolone30 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.

Bills Medicare through one group practice

  1. Mercy Oklahoma Ambulatory Services LLCNichols Hills, OK

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Catherine Ratliff among 2,303 family medicine physician records in Oklahoma

Catherine Ratliff, APRN is one of 2,303 family medicine physician records with a practice address in Oklahoma. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 82% of them.

  • NPI issued2019 · 82% of these records are older, 16% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated2018 · median 2008 among the 1,407 with a school on file
  • Record last updated2019 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

478 family medicine physician records list a practice address in Oklahoma City

They are 478 of the 22,359 NPPES records with a practice address in Oklahoma City, and 2,303 family medicine physician records in Oklahoma.

The 8 family medicine physician records with the nearest ZIP codes

  1. Penny AberOklahoma City, OK 731621982530432
  2. Stephen Hopkins, MDOklahoma City, OK 731621861534406
  3. Ingrid Jackson, MDOklahoma City, OK 731621265492417
  4. Mary Joseph, D.O.Oklahoma City, OK 731621336554492
  5. Jorge Luege Hermosilla, MDOklahoma City, OK 731621023508389
  6. Demille Madoux, M.D.Oklahoma City, OK 731621215994868
  7. Melanie Marshall, MDOklahoma City, OK 731621649590837
  8. Mars Martinez, MDOklahoma City, OK 731621982613030

Common questions

What is Catherine Ratliff, APRN's NPI number?

Catherine Ratliff, APRN's National Provider Identifier (NPI) is 1821658899, issued on Jun 20, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Catherine Ratliff, APRN located?

The NPPES record lists a practice address at 8105 NW Expressway, Oklahoma City, OK, 73162. Phone: (405) 602-3500. Providers update this record themselves, so call before visiting.

How can I verify Catherine Ratliff, APRN's license?

NPPES lists Oklahoma license number 109156, as entered by the provider. Search the Oklahoma Board of Medical Licensure and Supervision at https://www.okmedicalboard.org/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Catherine Ratliff, APRN prescribe under Medicare Part D?

In 2024, Catherine Ratliff, APRN had 473 Medicare Part D claims for 312 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.