Kathleen Mary Treanor, M.D.
Internal Medicine Physician · Springfield, IL
Kathleen Mary Treanor, M.D. is an internal medicine physician with a practice address in Springfield, Illinois, and NPI 1669429510, issued on May 27, 2006. Check the license (Illinois 036088510, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Kathleen Mary Treanor
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 036088510 IL
Self-reported in NPPES; status is on the state search - Practice location
- 901 E Southwind RD, Springfield, IL 62703
- Phone
- (217) 786-0093
- Enumerated
- May 27, 2006
- Record last updated
- May 3, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (217) 786-0193
- Medicaid ID
- 036088510 IL
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 901 E Southwind RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Araceli CabarcasPsychologist1992732788
- Elizabeth Egler, PHARMDPharmacist1265882633
- Nichole Palusinski, PHARM.D.Pharmacist1770281032
- Jennifer RatliffPharmacist1700392990
- Noeen Sarfraz, MDPsychiatry Physician1194257840
- Tanveer Shan, M.D.,Psychiatry Physician1861599342
Verify Kathleen Mary Treanor in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036088510Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average internal medicine physician in 2024
200 Medicare Part D claims for 20 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Levothyroxine Sodium27 claims
- Metoprolol Succinate25 claims
- Omeprazole17 claims
- Atorvastatin Calcium15 claims
- Pantoprazole Sodium13 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.
Kathleen Mary Treanor among 7,238 internal medicine physician records in Illinois
Kathleen Mary Treanor, M.D. is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% 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 7% of them.
- NPI issued2006 · 7% of these records are older, 61% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2016 · 47% 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 Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
196 internal medicine physician records list a practice address in Springfield
They are 196 of the 4,997 NPPES records with a practice address in Springfield, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Springfield → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Deborah Albright, M.D.Springfield, IL 627031639145360
- Stanley Allen, M.D.Springfield, IL 627031285631127
- Simone Borges-Young, M.D.Springfield, IL 627031871554915
- George Burns, MDSpringfield, IL 627031710957659
- Edgard Cumpa, MDSpringfield, IL 627031497743488
- George Geranios, MDSpringfield, IL 627031487607412
- Vladimir Lytchakov, MDSpringfield, IL 627031184617201
- David Pittman, M.D.Springfield, IL 627031124052030
Common questions
What is Kathleen Mary Treanor, M.D.'s NPI number?
Kathleen Mary Treanor, M.D.'s National Provider Identifier (NPI) is 1669429510, issued on May 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Kathleen Mary Treanor, M.D. located?
The NPPES record lists a practice address at 901 E Southwind RD, Springfield, IL, 62703. Phone: (217) 786-0093. Providers update this record themselves, so call before visiting.
How can I verify Kathleen Mary Treanor, M.D.'s license?
NPPES lists Illinois license number 036088510, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Kathleen Mary Treanor, M.D. prescribe under Medicare Part D?
In 2024, Kathleen Mary Treanor, M.D. had 200 Medicare Part D claims for 20 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.