Katherine M. Mahon, MD
Urology Physician · Providence, RI
Katherine M. Mahon, MD is a urology physician with a practice address in Providence, Rhode Island, and NPI 1689139909, issued on Feb 1, 2019. Check the license (Rhode Island MD20668, as entered in NPPES) on the Rhode Island Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Katherine M. Mahon
- Credential
- MD
- Primary taxonomy
- Urology Physician 208800000X
- License number
- MD20668 RI
Self-reported in NPPES; status is on the state search - Practice location
- 2 Dudley St Ste 175185, Providence, RI 02905
- Phone
- (401) 421-0710
- Enumerated
- Feb 1, 2019
- Record last updated
- Mar 10, 2026
- Fax
- (401) 421-0796
- Medicare enrollment
- Enrolled (PECOS I20250708003055); accepts Medicare assignment
- Medical or professional school
- Baylor College Of Medicine, 2019
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest urology physician records → All 66 in Rhode Island → Look up another NPI →
Also registered at 2 Dudley St Ste 175185
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gabriella Avellino, MDUrology Physician1700129236
Verify Katherine M. Mahon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersRhode Island Board of Medical Licensure and Discipline
Search for license MD20668Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average urology physician in 2024
25 Medicare Part D claims for 17 beneficiaries, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D.
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 2 group practices
- Brown Urology, Inc.Providence, RI
- Lifespan Physician Group IncProvidence, RI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katherine M. Mahon among 66 urology physician records in Rhode Island
Katherine M. Mahon, MD is one of 66 urology physician records with a practice address in Rhode Island. 76% 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 89% of them.
- NPI issued2019 · 89% of these records are older, 8% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2019 · median 2004 among the 42 with a school on file
- Record last updated2026 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208800000X and a Rhode Island practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Urology Physician providers in Rhode Island
There are 66 urology physician records in Rhode Island.
All 66 in Rhode Island → Every provider in Providence → Urology Physician nationwide →
The 8 urology physician records with the nearest ZIP codes
- Gabriella Avellino, MDProvidence, RI 029051700129236
- Anthony Caldamone, M.D.Providence, RI 029051235197278
- Dragan Golijanin, M.D.Providence, RI 029051841304078
- Mark Sigman, MDProvidence, RI 029051114038155
- Barry Stein, MDProvidence, RI 029051194865030
- Simone ThavaseelanProvidence, RI 029051053530782
- Liza Aguiar, MDProvidence, RI 029041861652349
- Mariepet Ask, M.D.Providence, RI 029061477762706
Common questions
What is Katherine M. Mahon, MD's NPI number?
Katherine M. Mahon, MD's National Provider Identifier (NPI) is 1689139909, issued on Feb 1, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Katherine M. Mahon, MD located?
The NPPES record lists a practice address at 2 Dudley St Ste 175185, Providence, RI, 02905. Phone: (401) 421-0710. Providers update this record themselves, so call before visiting.
How can I verify Katherine M. Mahon, MD's license?
NPPES lists Rhode Island license number MD20668, as entered by the provider. Search the Rhode Island Board of Medical Licensure and Discipline at https://healthri.mylicense.com/Verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Katherine M. Mahon, MD prescribe under Medicare Part D?
In 2024, Katherine M. Mahon, MD had 25 Medicare Part D claims for 17 beneficiaries; the average among urology physician prescribers was 1,340. 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.