Quick answers
- Does Katherine M. Mahoney accept Medicare assignment?
- Yes. Medicare's clinician data says Katherine M. Mahoney accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Katherine M. Mahoney see?
- In 2024, CMS data shows 135 Original Medicare patients and 1,157 services for Katherine M. Mahoney. This counts Original Medicare only and measures volume, not quality.
- What is Katherine M. Mahoney's NPI number?
- 1336851252. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Katherine M. Mahoney, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 135 |
|---|---|
| Services billed to Medicare | 1,157 |
| Different services or procedures | 54 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Insertion of needle into vein for collection of blood sample (36415)116 services
- Blood test, comprehensive group of blood chemicals (80053)98 services
- Blood test, lipids (cholesterol and triglycerides) (80061)50 services
- Automated urinalysis test (81003)47 services
- Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)39 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol64%
- High blood pressure58%
- Arthritis36%
- Anxiety21%
- Osteoporosis16%
- Atrial fibrillation16%
Hospitals where Katherine M. Mahoney works
Medicare's Facility Affiliation Data lists Katherine M. Mahoney at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- PeaceHealth St Joseph Medical CenterBellingham, WA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 500030
Practice locations
Addresses where Katherine M. Mahoney is enrolled with Medicare (CMS data updated October 2, 2026).
- 1610 Grover St, Suite D1Lynden, WA 98264 (360) 312‑3785
Group practices
Medicare enrollment lists Katherine M. Mahoney as a member of this group (CMS data updated October 2, 2026).
- Family Care Network, PLLC124 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Lynden
Clinicians with the same Medicare primary specialty in Lynden, WA — not a recommendation.
Other clinicians in Family Care Network, PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2022 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1336851252 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians