Catherine Leigh Gaffney, DO
Internal Medicine Physician · Tulsa, OK
Catherine Leigh Gaffney, DO is an internal medicine physician with a practice address in Tulsa, Oklahoma, and NPI 1831143155, issued on May 20, 2006. Check the license (Oklahoma 4159, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.
- Name
- Catherine Leigh Gaffney
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 4159 OK
Self-reported in NPPES; status is on the state search - Practice location
- 9228 S Mingo RD, Tulsa, OK 74133
- Phone
- (918) 392-7575
- Enumerated
- May 20, 2006
- Record last updated
- Feb 19, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (918) 615-3465
- Medicaid ID
- 200045840A OK
- Medicare enrollment
- Enrolled (PECOS I20050312000042); accepts Medicare assignment
- Medical or professional school
- Oklahoma State University College Of Osteopathic Medicine, 1996
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,115 in Oklahoma → Look up another NPI →
Also registered at 9228 S Mingo RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Adrian Donnelly, PA-CPhysician Assistant1164881199
- Ronnie Epperly, LPCProfessional Counselor1194598631
Verify Catherine Leigh Gaffney in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOklahoma Board of Medical Licensure and Supervision
Search for license 4159Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
65% more Medicare Part D claims than the average internal medicine physician in 2024
5,233 Medicare Part D claims for 264 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims. 112 claims were for opioids.
Most prescribed
- Levothyroxine Sodium230 claims
- Mounjaro210 claims
- Atorvastatin Calcium197 claims
- Amlodipine Besylate158 claims
- Gabapentin154 claims
- Losartan Potassium143 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: $1,619.06
83 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 50,334 providers of this specialty with any payment received $1,303.06 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
- Ahs Oklahoma Physician Group LLCOwasso, OK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Catherine Leigh Gaffney among 1,115 internal medicine physician records in Oklahoma
Catherine Leigh Gaffney, DO is one of 1,115 internal medicine physician records with a practice address in Oklahoma. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 11% of them.
- NPI issued2006 · 11% of these records are older, 57% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1996 · median 2007 among the 653 with a school on file
- Record last updated2015 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
307 internal medicine physician records list a practice address in Tulsa
They are 307 of the 18,643 NPPES records with a practice address in Tulsa, and 1,115 internal medicine physician records in Oklahoma.
All 1,115 in Oklahoma → Every provider in Tulsa → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Dan Calhoun, MDTulsa, OK 741331255330528
- Stephen Calvert, M.D.Tulsa, OK 741331902875420
- John Cook, MDTulsa, OK 741331316905250
- Jonelle Dutton-Gaddis, D.O.Tulsa, OK 741331982680757
- Michael Gebetsberger, MDTulsa, OK 741331851378350
- Lisa King, MDTulsa, OK 741331073545885
- Renae Mayer, M.D.Tulsa, OK 741331093752503
- Dana Morrel, M.D.Tulsa, OK 741331417918954
Common questions
What is Catherine Leigh Gaffney, DO's NPI number?
Catherine Leigh Gaffney, DO's National Provider Identifier (NPI) is 1831143155, issued on May 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Catherine Leigh Gaffney, DO located?
The NPPES record lists a practice address at 9228 S Mingo RD, Tulsa, OK, 74133. Phone: (918) 392-7575. Providers update this record themselves, so call before visiting.
How can I verify Catherine Leigh Gaffney, DO's license?
NPPES lists Oklahoma license number 4159, 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 Leigh Gaffney, DO prescribe under Medicare Part D?
In 2024, Catherine Leigh Gaffney, DO had 5,233 Medicare Part D claims for 264 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.