Katherine Mahon
Internal Medicine Physician · Providence, RI
Katherine Mahon is an internal medicine physician with a practice address in Providence, Rhode Island, and NPI 1962757039, issued on Jul 16, 2012. Check the license (Rhode Island DO00823, 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 Mahon
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- DO00823 RI
253113 MA
Self-reported in NPPES; status is on the state search - Practice location
- 593 Eddy St, Providence, RI 02903
- Phone
- (401) 443-4983
- Enumerated
- Jul 16, 2012
- Record last updated
- Jul 31, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (401) 784-4902
- Medicare enrollment
- Enrolled (PECOS I20251201002996); may accept Medicare assignment
- Medical or professional school
- Lincoln Mem Univ, Debusk Col Of Osteopathic Med, 2012
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,033 in Rhode Island → Look up another NPI →
Also registered at 593 Eddy St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- James Abernathy, MDAnesthesiology Physician1942257217
- Karen Abi Chebl, MDStudent in an Organized Health Care Education/Training Program1255179552
- Georges Abi Roustom, MDAnesthesiology Physician1548871908
Verify Katherine 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 DO00823Check 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 internal medicine physician in 2024
79 Medicare Part D claims for 29 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Omeprazole32 claims
- Pantoprazole Sodium15 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: $394.73
5 payments; by number, the most common kind was food and beverage; the largest payer was Gilead Sciences, Inc. 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.
Katherine Mahon among 1,033 internal medicine physician records in Rhode Island
Katherine Mahon is one of 1,033 internal medicine physician records with a practice address in Rhode Island. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 53% of them.
- NPI issued2012 · 53% of these records are older, 45% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2012 · median 2006 among the 590 with a school on file
- Record last updated2018 · 48% 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 Rhode Island practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
511 internal medicine physician records list a practice address in Providence
They are 511 of the 9,647 NPPES records with a practice address in Providence, and 1,033 internal medicine physician records in Rhode Island.
All 1,033 in Rhode Island → Every provider in Providence → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Kristin Anderson, MDProvidence, RI 029031740236173
- Andrew Bostom, MDProvidence, RI 029031902850274
- Sybil Cineas, MDProvidence, RI 029031053364984
- Heinrich Elinzano, M.D.Providence, RI 029031063477032
- Rebekah Gardner, MDProvidence, RI 029031275597536
- Sajeev Handa, MDProvidence, RI 029031528012747
- William Mason, M.D.Providence, RI 029031679579338
- Donnah Mathews, MDProvidence, RI 029031942288097
Common questions
What is Katherine Mahon's NPI number?
Katherine Mahon's National Provider Identifier (NPI) is 1962757039, issued on Jul 16, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Mahon located?
The NPPES record lists a practice address at 593 Eddy St, Providence, RI, 02903. Phone: (401) 443-4983. Providers update this record themselves, so call before visiting.
How can I verify Katherine Mahon's license?
NPPES lists Rhode Island license number DO00823, 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 Mahon prescribe under Medicare Part D?
In 2024, Katherine Mahon had 79 Medicare Part D claims for 29 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.