DR. KATHERINE MAHON
NPI 1962757039
Internal Medicine in Providence, RI
About Dr. Katherine Mahon NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. KATHERINE MAHON (NPI 1962757039) is an individual internal medicine provider in Providence, Rhode Island, licensed in Rhode Island (DO00823) and active in the NPI registry since July 2012. She is enrolled in Medicare PECOS, is affiliated with The Miriam Hospital, and is a graduate of Lincoln Mem Univ, Debusk Col Of Osteopathic Med (2012).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Katherine Mahon is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Katherine Mahon reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Providence, RI 02903
- Reassigned Medicare billing, Rhode Island enrollment
- 1,372 clinicians in this Medicare group
Wausau, WI 54401
- Reassigned Medicare billing, Wisconsin enrollment
- Medicare enrollment name: Aspirus Riverview Hospital & Clinics Inc
- 397 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
The Miriam Hospital
Acute Care Hospitals · Providence, RIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02903 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PROVIDENCE, RI 02903
PROVIDENCE, RI 02903
PROVIDENCE, RI 02903
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Katherine Mahon's NPI number?
The NPI number for Katherine Mahon is 1962757039. It was assigned to this individual provider in the NPPES registry on July 16, 2012.
Where is Katherine Mahon located?
Katherine Mahon practices at 593 Eddy St, Providence, RI 02903. The listed phone number is (401) 443-4983.
What is Katherine Mahon's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Katherine Mahon enrolled in Medicare?
Yes. Katherine Mahon is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Katherine Mahon's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Katherine Mahon reassigns Medicare benefits to 2 organizations: Lifespan Physician Group, Inc. (Providence, RI) and Aspirus Medical Group, Inc. (Wausau, WI). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Katherine Mahon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Katherine Mahon accept?
Health plans from HealthPartners list Katherine Mahon as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Katherine Mahon affiliated with any hospitals?
According to CMS data, Katherine Mahon is affiliated with The Miriam Hospital.
When was this NPI record last updated?
The NPPES record for Katherine Mahon was last updated on July 31, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Katherine Mahon · NPI 1962757039
Internal Medicine physician in Providence, Rhode Island. Individual provider, active in the CMS NPPES registry since July 16, 2012.
## Identity
- **NPI:** 1962757039 (Entity type: Individual)
- **Enumerated:** July 16, 2012
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** DO00823 (Rhode Island)
- **Sole proprietor:** No
## Practice location
- **Address:** 593 EDDY ST, Providence, RI 02903
- **Phone:** (401) 443-4983 · **Fax:** (401) 784-4902
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Lifespan Physician Group, Inc. (NPI 1407116643, Providence, RI); Aspirus Medical Group, Inc. (NPI 1689976474, Wausau, WI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Lincoln Mem Univ, Debusk Col Of Osteopathic Med, class of 2012
## Record status
- **NPPES last updated:** July 31, 2018
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Source: [NPI Profile](https://npiprofile.com/npi/1962757039) · Data from the CMS NPPES public registry.