Katherine Mahoney, ARNP
Family Nurse Practitioner · Lynden, WA
Katherine Mahoney, ARNP is a family nurse practitioner with a practice address in Lynden, Washington, and NPI 1336851252, issued on Dec 22, 2022. Check the license (Washington AP61295718, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Katherine Mahoney
- Credential
- ARNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- AP61295718 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1610 Grover St Ste D1, Lynden, WA 98264
- Phone
- (360) 354-1333
- Enumerated
- Dec 22, 2022
- Record last updated
- Jan 26, 2023
- Medicare enrollment
- Enrolled (PECOS I20230517002128); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 3,781 in Washington → Look up another NPI →
Also registered at 1610 Grover St Ste D1
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Katherine Mahoney in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license AP61295718Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% more Medicare Part D claims than the average family nurse practitioner in 2024
2,177 Medicare Part D claims for 365 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 17 claims were for opioids.
Most prescribed
- Atorvastatin Calcium126 claims
- Losartan Potassium104 claims
- Levothyroxine Sodium92 claims
- Lisinopril91 claims
- Rosuvastatin Calcium87 claims
- Amlodipine Besylate83 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.
Bills Medicare through one group practice
- Family Care Network, PLLCLynden, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katherine Mahoney among 3,781 family nurse practitioner records in Washington
Katherine Mahoney, ARNP is one of 3,781 family nurse practitioner records with a practice address in Washington. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 78% of them.
- NPI issued2022 · 78% of these records are older, 17% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated2022 · median 2018 among the 2,116 with a school on file
- Record last updated2023 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
8 family nurse practitioner records list a practice address in Lynden
They are 8 of the 208 NPPES records with a practice address in Lynden, and 3,781 family nurse practitioner records in Washington.
All 3,781 in Washington → Every provider in Lynden → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Patricia Aguilera, ARNPLynden, WA 982641063866317
- Jessica Depass, ARNPLynden, WA 982641124858238
- Rhonda EisenbergLynden, WA 982641699423285
- Amber Erdmann, APRN, FNP-CLynden, WA 982641881560076
- Karen Goodman, ARNPLynden, WA 982641285655969
- Jose Benjamin Francisco Nava, ARNPLynden, WA 982641871387829
- Sonya Sandhu, FNPLynden, WA 982641669927620
- Wendy MurphyLopez Island, WA 982611750895330
Common questions
What is Katherine Mahoney, ARNP's NPI number?
Katherine Mahoney, ARNP's National Provider Identifier (NPI) is 1336851252, issued on Dec 22, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Mahoney, ARNP located?
The NPPES record lists a practice address at 1610 Grover St Ste D1, Lynden, WA, 98264. Phone: (360) 354-1333. Providers update this record themselves, so call before visiting.
How can I verify Katherine Mahoney, ARNP's license?
NPPES lists Washington license number AP61295718, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Katherine Mahoney, ARNP prescribe under Medicare Part D?
In 2024, Katherine Mahoney, ARNP had 2,177 Medicare Part D claims for 365 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.